Spreadsheet: 5123bce1-5f32-479f-9924-e224457d531f
Sheet: Stones

BUILDING_STONE_ID | STONE_NAME | PARENT BUILDING STONE  ID | ALTERNATIVE_NAMES | [NAME] | COLOUR | COLOUR_VARIATION | WEATHERED COLOUR | LITHOSTRATIGRAPHY | CHRONOSTRAT | STONE_LITHOLOGY | GRAIN_SIZE | [NAME] | KEY_IDENTIFICATION_FEATURES | FAILURE_WEATHERING | CONTEXT_OF_USE | LOCALITY_OF_USE | DATE_COMPILED | COMPILED_BY | MINERAL PLANNING AREA | English Heritage Atlas Area | SOURCE_OF_INFO | retrieval_date
6001 | Tufa | 1 | Marl | Unusual appearance could sometimes be confused (especially in photographs) with vughy dolomite, some exotic stones or possibly even some volcanic rocks (eg tuffs) |  | Mottled | cream | TUFA | [NAME] | NOT ENTERED | fine | masses having a spongy appearance (full of voids, although sometimes infilled); textures may reflect plants or other debris | masses having a sponge-like or cellular  appearance (full of rounded voids) | Considering its appearance (full of voids) it is often perhaps surprisingly resilient. | Decorative, landscaping and some building | masses having a sponge-like or cellular  appearance (full of rounded voids) |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6002 | Tufa | 1 | Marl | Unusual appearance could sometimes be confused (especially in photographs) with vughy dolomite, some exotic stones or possibly even some volcanic rocks (eg tuffs) |  | Mottled | cream | TUFA | [NAME] | NOT ENTERED | fine | masses having a spongy appearance (full of voids, although sometimes infilled); textures may reflect plants or other debris | masses having a sponge-like or cellular  appearance (full of rounded voids) | Considering its appearance (full of voids) it is often perhaps surprisingly resilient. | Decorative, landscaping and some building | masses having a sponge-like or cellular  appearance (full of rounded voids) |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6003 | Alport Tufa | 6002 | Marl | Unusual appearance could sometimes be confused (especially in photographs) with vughy dolomite, some exotic stones or possibly even some volcanic rocks (eg tuffs) |  | Mottled | cream | TUFA | [NAME] | NOT ENTERED | Fine | masses having a spongy appearance (full of voids, although sometimes infilled); textures may reflect plants or other debris | masses having a sponge-like or cellular  appearance (full of rounded voids) | Considering its appearance (full of voids) it is often perhaps surprisingly resilient | Decorative, landscaping and some building | masses having a sponge-like or cellular  appearance (full of rounded voids) |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6004 | Skerries | 1 | [NAME] | Generally loosely cemented sandstones in mudstone sequence;indurated mudstones; cement is calcite dolomite or very occasionally baryte | BUFF | Banded | paler [NAME]/pink | MERCIA MUDSTONE GROUP | TRIASSIC | NOT ENTERED | Fine grained |  | usually very friable sandstones and occasionally siltstones; rarely used far from outcrop, fine to medium grained | Poor frost resistance; friable or delaminates | Occ field walls + barns | usually very friable sandstones and occasionally siltstones; rarely used far from outcrop, fine to medium grained |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6005 | Skerries | 1 | [NAME] | Generally loosely cemented sandstones in mudstone sequence;indurated mudstones; cement is calcite dolomite or very occasionally baryte | BUFF | Banded | paler [NAME]/pink | MERCIA MUDSTONE GROUP | TRIASSIC | NOT ENTERED | Fine grained |  | usually very friable sandstones and occasionally siltstones; rarely used far from outcrop, fine to medium grained | Poor frost resistance; friable or delaminates | Occ field walls + barns | usually very friable sandstones and occasionally siltstones; rarely used far from outcrop, fine to medium grained |  | [NAME] (NSC) | Derby City Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6006 | Skerries | 1 | [NAME] | Generally loosely cemented sandstones in mudstone sequence;indurated mudstones; cement is calcite dolomite or very occasionally baryte | BUFF | Banded | paler [NAME]/pink | MERCIA MUDSTONE GROUP | TRIASSIC | NOT ENTERED | Fine grained |  | usually very friable sandstones and occasionally siltstones; rarely used far from outcrop, fine to medium grained | Poor frost resistance; friable or delaminates | Occ field walls + barns | usually very friable sandstones and occasionally siltstones; rarely used far from outcrop, fine to medium grained |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6007 | Alabaster | 1 |  | Variegated, pink-veined, white alabaster. Massive, often capable of taking a high polish, relatively soft. Easily carved - most large pieces suggest an early date say pre 1850 (cf with other alabaster from neighbouring sources such as Red Hill and Tutbury/Fauld) which often supplied larger specimens until a later date | PINK | Mottled |  | [NAME] | TRIASSIC | NOT ENTERED | not applicable - recrystallised and generally amorphous | Usually none, but crystallization structures may be apparent; ghost structures outlined by red [NAME] | Marked pink/red veining on white base (chicken net' patterning), normally no obvious bedding, usually found as massive lumps at a particular horizon rather than a consistent bed. | weathers very badly, but has been used externally, concave  pitting caused by dissolution.  Highly susceptible to acidic erosion. Not suitable for external use as numerous rockeries in S Derby properties testify. | internal - cladding, doorcases urns - occ. rockeries + walls (S Derby) + wallposts (Elvaston) | Marked pink/red veining on white base (chicken net' patterning), normally no obvious bedding, usually found as massive lumps at a particular horizon rather than a consistent bed. |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6010 | [NAME] | 6007 | Tutbury Alabaster | Variegated, pink-veined, white alabaster. Massive, often capable of taking a high polish, relatively soft. Easily carved - most large pieces suggest an early date say pre 1850 (cf with other alabaster from neighbouring sources such as Red Hill and Tutbury/Fauld) which often supplied larger specimens until a later date | PINK | Mottled |  | TUTBURY GYPSUM | TRIASSIC | NOT ENTERED | not applicable - recrystallised and generally amorphous | Usually none, but crystallization structures may be apparent; ghost structures outlined by red [NAME] | Marked pink/red veining on white base (chicken net' patterning), normally no obvious bedding, usually found as massive lumps at a particular horizon rather than a consistent bed. | weathers very badly, but has been used externally, concave  pitting caused by dissolution.  Highly susceptible to acidic erosion. Not suitable for external use as numerous rockeries in S Derby properties testify. | internal - cladding, doorcases urns - occ. rockeries + walls (S Derby) + wallposts (Elvaston) | Marked pink/red veining on white base (chicken net' patterning), normally no obvious bedding, usually found as massive lumps at a particular horizon rather than a consistent bed. |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6011 | Lower Keuper Sandstone | 1 | Waterstones | Very fine grained silty sandstone. Cement is calcite or occasionally  dolomite or rarely baryte |  | Banded | slightly lighter | [NAME] | TRIASSIC | NOT ENTERED | Fine grained | May display ripple, mud cracks  or other shallow water features. Cross and planar bedding | Very soft fine grained often laminated sandstone - rarely sufficiently robust to make a building stone. Frequently displays sedimentary features (qv).   Softer than those Namurian sandstones of similar appearance. Telltale feature includes v fine clay-filled veins which tend to be light blue-green in colour. In some areas, bedding planes have mica (possible origin of the old name 'Waterstones').  Fossils extremely rare. Occasional calcite/dolomite-filled sinuous veins which , on weathering, may stand as narrow ribs slightly proud of the surface.  Cement is calcite or occasionally  dolomite or rarely baryte | Usually too poorly cemented to be used as a building stone on  this area. Particularly prone to delamination; susceptible to rapid breakdown especially if edge bedded. Gypsum veining readily dissolves resulting in breakdown | Buildings esp dressings w brick; field walls | Very soft fine grained often laminated sandstone - rarely sufficiently robust to make a building stone. Frequently displays sedimentary features (qv).   Softer than those Namurian sandstones of similar appearance. Telltale feature includes v fine clay-filled veins which tend to be light blue-green in colour. In some areas, bedding planes have mica (possible origin of the old name 'Waterstones').  Fossils extremely rare. Occasional calcite/dolomite-filled sinuous veins which , on weathering, may stand as narrow ribs slightly proud of the surface.  Cement is calcite or occasionally  dolomite or rarely baryte |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6012 | Waterstones | 6011 | Lower Keuper Sandstone | Very soft fine grained often laminated sandstone - rarely sufficiently robust to make a building stone. Frequently displays sedimentary features (qv).   Softer than those Namurian sandstones of similar appearance. Telltale feature includes v fine clay-filled veins which tend to be light blue-green in colour. In some areas, bedding planes have mica (possible origin of the old name 'Waterstones').  Fossils extremely rare. Occasional calcite/dolomite-filled sinuous veins which , on weathering, may stand as narrow ribs slightly proud of the surface.  Cement is calcite or occasionally  dolomite or rarely baryte |  | Banded | slightly lighter | [NAME] | TRIASSIC | NOT ENTERED | Fine grained | May display ripple, mud cracks  or other shallow water features. Cross and planar bedding | Very soft fine grained often laminated sandstone - rarely sufficiently robust to make a building stone. Frequently displays sedimentary features (qv).   Softer than those Namurian sandstones of similar appearance. Telltale feature includes v fine clay-filled veins which tend to be light blue-green in colour. In some areas, bedding planes have mica (possible origin of the old name 'Waterstones').  Fossils extremely rare. Occasional calcite/dolomite-filled sinuous veins which , on weathering, may stand as narrow ribs slightly proud of the surface.  Cement is calcite or occasionally  dolomite or rarely baryte | Usually too poorly cemented to be used as a building stone on  this area. Particularly prone to delamination; susceptible to rapid breakdown especially if edge bedded. Gypsum veining readily dissolves resulting in breakdown | Buildings esp dressings w brick; field walls | Very soft fine grained often laminated sandstone - rarely sufficiently robust to make a building stone. Frequently displays sedimentary features (qv).   Softer than those Namurian sandstones of similar appearance. Telltale feature includes v fine clay-filled veins which tend to be light blue-green in colour. In some areas, bedding planes have mica (possible origin of the old name 'Waterstones').  Fossils extremely rare. Occasional calcite/dolomite-filled sinuous veins which , on weathering, may stand as narrow ribs slightly proud of the surface.  Cement is calcite or occasionally  dolomite or rarely baryte |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6013 | [NAME] | 6011 | Lower Keuper Sandstone | Very soft fine grained often laminated sandstone - rarely sufficiently robust to make a building stone. Frequently displays sedimentary features (qv).   Softer than those Namurian sandstones of similar appearance. Telltale feature includes v fine clay-filled veins which tend to be light blue-green in colour. In some areas, bedding planes have mica (possible origin of the old name 'Waterstones').  Fossils extremely rare. Occasional calcite/dolomite-filled sinuous veins which , on weathering, may stand as narrow ribs slightly proud of the surface. |  | Banded | slightly lighter | [NAME] | TRIASSIC | NOT ENTERED | Fine grained | May display ripple, mud cracks  or other shallow water features. Cross and planar bedding | Very soft fine grained often laminated sandstone - rarely sufficiently robust to make a building stone. Frequently displays sedimentary features (qv).   Softer than those Namurian sandstones of similar appearance. Telltale feature includes v fine clay-filled veins which tend to be light blue-green in colour. In some areas, bedding planes have mica (possible origin of the old name 'Waterstones').  Fossils extremely rare. Occasional calcite/dolomite-filled sinuous veins which , on weathering, may stand as narrow ribs slightly proud of the surface. | Usually too poorly cemented to be used as a building stone on  this area. Particularly prone to delamination; susceptible to rapid breakdown especially if edge bedded. Gypsum veining readily dissolves resulting in breakdown | Buildings esp dressings w brick; field walls | Very soft fine grained often laminated sandstone - rarely sufficiently robust to make a building stone. Frequently displays sedimentary features (qv).   Softer than those Namurian sandstones of similar appearance. Telltale feature includes v fine clay-filled veins which tend to be light blue-green in colour. In some areas, bedding planes have mica (possible origin of the old name 'Waterstones').  Fossils extremely rare. Occasional calcite/dolomite-filled sinuous veins which , on weathering, may stand as narrow ribs slightly proud of the surface. |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6014 | Lower Keuper Sandstone | 1 | Waterstones | Very fine grained silty sandstone. Cement is calcite or occasionally  dolomite or rarely baryte |  | Banded | slightly lighter | [NAME] | TRIASSIC | NOT ENTERED | Fine grained | May display ripple, mud cracks  or other shallow water features. Cross and planar bedding | Very soft fine grained often laminated sandstone - rarely sufficiently robust to make a building stone. Frequently displays sedimentary features (qv).   Softer than those Namurian sandstones of similar appearance. Telltale feature includes v fine clay-filled veins which tend to be light blue-green in colour. In some areas, bedding planes have mica (possible origin of the old name 'Waterstones').  Fossils extremely rare. Occasional calcite/dolomite-filled sinuous veins which , on weathering, may stand as narrow ribs slightly proud of the surface.  Cement is calcite or occasionally  dolomite or rarely baryte | Usually too poorly cemented to be used as a building stone on  this area. Particularly prone to delamination; susceptible to rapid breakdown especially if edge bedded. Gypsum veining readily dissolves resulting in breakdown | Buildings esp dressings w brick; field walls | Very soft fine grained often laminated sandstone - rarely sufficiently robust to make a building stone. Frequently displays sedimentary features (qv).   Softer than those Namurian sandstones of similar appearance. Telltale feature includes v fine clay-filled veins which tend to be light blue-green in colour. In some areas, bedding planes have mica (possible origin of the old name 'Waterstones').  Fossils extremely rare. Occasional calcite/dolomite-filled sinuous veins which , on weathering, may stand as narrow ribs slightly proud of the surface.  Cement is calcite or occasionally  dolomite or rarely baryte |  | [NAME] (NSC) | Derby City Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6015 | Waterstones | 6014 | Lower Keuper Sandstone | Very soft fine grained often laminated sandstone - rarely sufficiently robust to make a building stone. Frequently displays sedimentary features (qv).   Softer than those Namurian sandstones of similar appearance. Telltale feature includes v fine clay-filled veins which tend to be light blue-green in colour. In some areas, bedding planes have mica (possible origin of the old name 'Waterstones').  Fossils extremely rare. Occasional calcite/dolomite-filled sinuous veins which , on weathering, may stand as narrow ribs slightly proud of the surface.  Cement is calcite or occasionally  dolomite or rarely baryte |  | Banded | slightly lighter | [NAME] | TRIASSIC | NOT ENTERED | Fine grained | May display ripple, mud cracks  or other shallow water features. Cross and planar bedding | Very soft fine grained often laminated sandstone - rarely sufficiently robust to make a building stone. Frequently displays sedimentary features (qv).   Softer than those Namurian sandstones of similar appearance. Telltale feature includes v fine clay-filled veins which tend to be light blue-green in colour. In some areas, bedding planes have mica (possible origin of the old name 'Waterstones').  Fossils extremely rare. Occasional calcite/dolomite-filled sinuous veins which , on weathering, may stand as narrow ribs slightly proud of the surface.  Cement is calcite or occasionally  dolomite or rarely baryte | Usually too poorly cemented to be used as a building stone on  this area. Particularly prone to delamination; susceptible to rapid breakdown especially if edge bedded. Gypsum veining readily dissolves resulting in breakdown | Buildings esp dressings w brick; field walls | Very soft fine grained often laminated sandstone - rarely sufficiently robust to make a building stone. Frequently displays sedimentary features (qv).   Softer than those Namurian sandstones of similar appearance. Telltale feature includes v fine clay-filled veins which tend to be light blue-green in colour. In some areas, bedding planes have mica (possible origin of the old name 'Waterstones').  Fossils extremely rare. Occasional calcite/dolomite-filled sinuous veins which , on weathering, may stand as narrow ribs slightly proud of the surface.  Cement is calcite or occasionally  dolomite or rarely baryte |  | [NAME] (NSC) | Derby City Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6016 | [NAME] | 6014 | Lower Keuper Sandstone | Very soft fine grained often laminated sandstone - rarely sufficiently robust to make a building stone. Frequently displays sedimentary features (qv).   Softer than those Namurian sandstones of similar appearance. Telltale feature includes v fine clay-filled veins which tend to be light blue-green in colour. In some areas, bedding planes have mica (possible origin of the old name 'Waterstones').  Fossils extremely rare. Occasional calcite/dolomite-filled sinuous veins which , on weathering, may stand as narrow ribs slightly proud of the surface. |  | Banded | slightly lighter | [NAME] | TRIASSIC | NOT ENTERED | Fine grained | May display ripple, mud cracks  or other shallow water features. Cross and planar bedding | Very soft fine grained often laminated sandstone - rarely sufficiently robust to make a building stone. Frequently displays sedimentary features (qv).   Softer than those Namurian sandstones of similar appearance. Telltale feature includes v fine clay-filled veins which tend to be light blue-green in colour. In some areas, bedding planes have mica (possible origin of the old name 'Waterstones').  Fossils extremely rare. Occasional calcite/dolomite-filled sinuous veins which , on weathering, may stand as narrow ribs slightly proud of the surface. | Usually too poorly cemented to be used as a building stone on  this area. Particularly prone to delamination; susceptible to rapid breakdown especially if edge bedded. Gypsum veining readily dissolves resulting in breakdown | Buildings esp dressings w brick; field walls | Very soft fine grained often laminated sandstone - rarely sufficiently robust to make a building stone. Frequently displays sedimentary features (qv).   Softer than those Namurian sandstones of similar appearance. Telltale feature includes v fine clay-filled veins which tend to be light blue-green in colour. In some areas, bedding planes have mica (possible origin of the old name 'Waterstones').  Fossils extremely rare. Occasional calcite/dolomite-filled sinuous veins which , on weathering, may stand as narrow ribs slightly proud of the surface. |  | [NAME] (NSC) | Derby City Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6017 | Triassic Sandstone | 1 | [NAME] | ? |  |  |  | SHERWOOD SANDSTONE GROUP | TRIASSIC | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area |  | 2012-05-16 10:20:35
6018 | Keuper Building Stone | 6012 | [NAME] | ? |  |  |  | SHERWOOD SANDSTONE GROUP | TRIASSIC | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area |  | 2012-05-16 10:20:35
6019 | Sherwood Sandstone | 6012 | [NAME] | ? |  |  |  | SHERWOOD SANDSTONE GROUP | TRIASSIC | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6020 | [NAME] | 6012 | Bromsgrove Sandstone | Generally evenly grained [NAME] relatively soft sandstone |  | Uniform | Light brown/[NAME] | BROMSGROVE SANDSTONE FORMATION | TRIASSIC | NOT ENTERED | Fine | Cross bedding and laminated | Relatively uniform fine to medium grain size, [NAME] but softer than those Namurian sandstones of similar appearance. Telltale features are v fine clay-filled veins which tend to be light blue-green in colour.  No fossils usually present. Occasional calcite/dolomite-filled sinuous veins which , on weathering, may stand slightly proud of the surface | Particularly prone to delamination; susceptible to rapid breakdown particularly if edge bedded in exposed facades | Buildings esp dressings w brick; field walls | Relatively uniform fine to medium grain size, [NAME] but softer than those Namurian sandstones of similar appearance. Telltale features are v fine clay-filled veins which tend to be light blue-green in colour.  No fossils usually present. Occasional calcite/dolomite-filled sinuous veins which , on weathering, may stand slightly proud of the surface |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6021 | Hollington Sandstone | 6012 | Lower Keuper Sandstone | ? |  |  |  | HOLLINGTON FORMATION | TRIASSIC | NOT ENTERED |  |  |  |  |  |  |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6022 | Red Hollington Sandstone | 6012 | Lower Keuper Sandstone | ? |  |  |  | HOLLINGTON FORMATION | TRIASSIC | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6023 | Hawksmoor Formation | 6012 |  | Red-brown, yellow, or yellow-mottled, very fine- to coarse-grained sandstones, commonly cross-bedded, locally micaceous, silty or argillaceous, pebbly or conglomeratic. Generally friable | RED |  |  | HAWKSMOOR FORMATION | TRIASSIC | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6024 | Bunter Pebble Beds | 1 |  | Soft sandstone and conglomerate; Quartzite pebbles  multi-coloured but usually liver-coloured set in a matrix of rounded sand grains.  Pebbles and cobbles often up to 0.3m; sand c1mm,yellow,red in places, MOTTLED and BANDED | YELLOW | Mottled | Cream/pink | SHERWOOD SANDSTONE GROUP | TRIASSIC | NOT ENTERED |  | Large scale current bedding resulting from braided river complex | highly friable conglomerate and sandstone | Easily weathers to components; rarely sufficiently cemented to be a competent building stone | Buildings esp dressings w brick; field walls | highly friable conglomerate and sandstone |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6025 | [NAME] | 6024 | Bunter Pebble Beds | ? |  |  |  | NOTTINGHAM CASTLE SANDSTONE FORMATION | TRIASSIC | NOT ENTERED |  |  |  |  |  |  |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6026 | Polesworth Stone | 6024 | Bunter Pebble Beds | Outcrops between the Trent and the S Derbyshire Coalfield. Generally insufficiently  consolidated and cemented to be deployed as  a building stone. | PINK | Mottled | n/a | POLESWORTH FORMATION | TRIASSIC | NOT ENTERED | Very coarse grained |  | highly friable conglomerate and sandstone | Too friable in most cases for use as a  building stone | Buildings esp dressings w brick; field walls | highly friable conglomerate and sandstone |  | ? | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area |  | 2012-05-16 10:20:35
6027 | Bunter Pebble Beds | 1 |  | Soft sandstone and conglomerate; Quartzite pebbles  multi-coloured but usually liver-coloured set in a matrix of rounded sand grains.  Pebbles and cobbles often up to 0.3m; sand [NAME], yellow ; red in places, MOTTLED and BANDED | YELLOW | Mottled | Cream/pink | SHERWOOD SANDSTONE GROUP | TRIASSIC | NOT ENTERED |  | Large scale current bedding resulting from braided river complex | highly friable conglomerate and sandstone | Easily weathers to components; rarely sufficiently cemented to be a competent building stone | Buildings esp dressings w brick; field walls | highly friable conglomerate and sandstone |  | [NAME] (NSC) | Derby City Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6028 | [NAME] | 6027 | Bunter Pebble Beds | ? |  |  |  | NOTTINGHAM CASTLE SANDSTONE FORMATION | TRIASSIC | NOT ENTERED |  |  |  |  |  |  |  | [NAME] (NSC) | Derby City Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6029 | Lower Magnesian Limestone | 1 |  | fine to medium grained | BUFF | Banded | Pink/Buff in bands | CADEBY FORMATION | PERMIAN | NOT ENTERED | Fine grained | Planar and wedge bedding; occasionally dome structures. Relict fossils v v occasionally. The vughy texture of most dolomites is not common here. In some areas there are thin veins often with  a greenish tinge | Variegated, white, [NAME], yellow and orange, dolomitic or magnesium-rich limestone May be crystalline, ooidal or bioclastic in character; saccharoidal (sugar-like) texture is common.. Fossils v rare indeed and may be partially altered. Finely defined dendritic patterns often on newly exposed surfaces (due to manganese/iron compounds). | Breaks down in sulphur-laden atmospheres (forms highly soluble magnesium sulphate). Thin veins or bedding planes may be clay/marl-filled and therefore susceptible | Buildings ; field walls | Variegated, white, [NAME], yellow and orange, dolomitic or magnesium-rich limestone May be crystalline, ooidal or bioclastic in character; saccharoidal (sugar-like) texture is common.. Fossils v rare indeed and may be partially altered. Finely defined dendritic patterns often on newly exposed surfaces (due to manganese/iron compounds). |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6030 | Cadeby Formation | 6029 |  | fine to medium grained | BUFF | Banded | Pink/Buff in bands | CADEBY FORMATION | PERMIAN | NOT ENTERED | Fine grained | Planar and wedge bedding; occasionally dome structures. Relict fossils v v occasionally. The vughy texture of most dolomites is not common here. In some areas there are thin veins often with  a greenish tinge | Variegated, white, [NAME], yellow and orange, dolomitic or magnesium-rich limestone May be crystalline, ooidal or bioclastic in character; saccharoidal (sugar-like) texture is common.. Fossils v rare indeed and may be partially altered. Finely defined dendritic patterns often on newly exposed surfaces (due to manganese/iron compounds). | Breaks down in sulphur-laden atmospheres (forms highly soluble magnesium sulphate). Thin veins or bedding planes may be clay/marl-filled and therefore susceptible | Buildings ; field walls | Variegated, white, [NAME], yellow and orange, dolomitic or magnesium-rich limestone May be crystalline, ooidal or bioclastic in character; saccharoidal (sugar-like) texture is common.. Fossils v rare indeed and may be partially altered. Finely defined dendritic patterns often on newly exposed surfaces (due to manganese/iron compounds). |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6031 | Coal Measures Sandstones | 1 |  | ? |  |  |  | PENNINE COAL MEASURES GROUP | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area |  | 2012-05-16 10:20:35
6032 | Middle Coal Measures Sandstones | 1 |  | Very varied - sandstone - orthoquartzites with feldspar (often part kaolinised), siderite nodules, often with mica, lithic and carbonaceous fragments.  Mainly fine but can be medium or occasionally coarse sand grains. | GREY | Banded | Typically on the yellow side of [NAME]. Frequently weathers to a mid-brown on account of siderite and pyrite degradation. Even slightly green in places | PENNINE MIDDLE COAL MEASURES [NAME] | CARBONIFEROUS | NOT ENTERED | Fine grained | Wide variety of fluvial bedding forms - especially cross-stratification. Occasional conglomerates and breccias. Closely spaced jointing and faulting | Generally varied - typically seen as a being on the yellow side of [NAME], as distinct from most of the Namurian sandstones, which tend to be on the pink side of [NAME]. Otherwise varied drab grey or rusty coloured; flaggy bedding and tendency break down readily. Not readily  differentiated from the Lower Coal Measures sandstones (except [NAME]); more 'muddy' and often considered less attractive than most of the lighter coloured pink/[NAME] sandstones | Frequent areas of failure often relate to micaceous planes siderite breakdown or mudstone partings. Particularly  poor frost resistance as evidenced by breakdown when in contact with the ground. Fragmentation resulting from mining subsidence also accentua | Field walls + a few buildings | Generally varied - typically seen as a being on the yellow side of [NAME], as distinct from most of the Namurian sandstones, which tend to be on the pink side of [NAME]. Otherwise varied drab grey or rusty coloured; flaggy bedding and tendency break down readily. Not readily  differentiated from the Lower Coal Measures sandstones (except [NAME]); more 'muddy' and often considered less attractive than most of the lighter coloured pink/[NAME] sandstones |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6033 | High Hazles Sandstone | 6032 |  | ? |  |  |  | PENNINE MIDDLE COAL MEASURES [NAME] | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6034 | Sandstone above [NAME] | 6032 |  | ? |  |  |  | PENNINE MIDDLE COAL MEASURES [NAME] | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6035 | Top Hard Rock | 6032 |  | ? |  |  |  | PENNINE MIDDLE COAL MEASURES [NAME] | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6036 | Lower Coal Measures Sandstones | 6031 |  | Very varied - sandstones -  orthoquartzites with feldspar (often part kaolinised), siderite nodules, often with mica, lithic and carbonaceous fragments.  Grain size tends to be mainly fine but can be medium or occasionally coarse | GREY | Banded | Typically on the yellow side of [NAME]. Frequently weathers to a mid-brown on account of siderite and pyrite degradation. Even slightly green in places | PENNINE LOWER COAL MEASURES [NAME] | CARBONIFEROUS | NOT ENTERED | Fine grained | Wide variety of fluvial bedding forms - especially cross-stratification. Occasional conglomerates and breccias. Closely spaced jointing and faulting | Generally varied - typically seen as a being on the yellow side of [NAME], as distinct from most of the Namurian sandstones, which tend to be on the pink side of [NAME]. Otherwise drab grey or rusty coloured; flaggy bedding and tendency break down readily | In Derbyshire/Peak Park, apart from the formations specifically mentioned (left), the other sandstones in this group are often considered to be  unreliable when used as building stone. However they were widely used selectively in the past. Occasional atte | Field walls + a few buildings | Generally varied - typically seen as a being on the yellow side of [NAME], as distinct from most of the Namurian sandstones, which tend to be on the pink side of [NAME]. Otherwise drab grey or rusty coloured; flaggy bedding and tendency break down readily |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6037 | Sandstone above [NAME] | 6036 | Lower Coal Measures Sandstone | ? |  |  |  | PENNINE LOWER COAL MEASURES [NAME] | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6038 | Ashgate Sandstone | 6036 |  | ? |  |  |  | PENNINE LOWER COAL MEASURES [NAME] | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6039 | Silkstone Rock | 6036 |  | Flaggy sandstones. Grain size generally fine to medium | BROWN | Banded | [NAME] | SILKSTONE ROCK | CARBONIFEROUS | NOT ENTERED | Fine grained |  | Flaggy sandstones; occasional  'cank balls' - ie silty or fine grained iron-rich concretions - rust coloured | Friable | Buildings ; field walls | Flaggy sandstones; occasional  'cank balls' - ie silty or fine grained iron-rich concretions - rust coloured |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6040 | Bole Hill Sandstone | 6036 |  | massive fine pink sandstones | PINK | Uniform | light pink/grey | BOLE HILL SANDSTONE | CARBONIFEROUS | NOT ENTERED | Fine grained | relatively massive | fine grained pink stone - very localised occurrence - the result of a younger channel cutting down deeply into the Wingfield Flags | generally robust |  | fine grained pink stone - very localised occurrence - the result of a younger channel cutting down deeply into the Wingfield Flags |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6041 | [NAME] | 6036 |  | The variation over often v short distances along outcrops can be very misleading. Generally laminar v fine grained but more variable in places (See Building Stone ID 1623) | GREY | Banded | olive/grey | WINGFIELD FLAGS | CARBONIFEROUS | NOT ENTERED | Very fine grained | some very delicate flow structures; ripple marks; where more massively bedded current bedding; | Thinly bedded (but not exclusively)/slatey -often a gnarled appearance (followed by micro-laminae) but can be massive in a few places | delamination. | Buildings; especially roofing ; field walls | Thinly bedded (but not exclusively)/slatey -often a gnarled appearance (followed by micro-laminae) but can be massive in a few places |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6042 | Grenoside Sandstone | 6036 |  | The variation over often v short distances along outcrops can be very misleading. Generally laminar grain v fine but more variable in places  (see Building Stone ID 1624) | GREY | Banded | olive/grey | GRENOSIDE SANDSTONE | CARBONIFEROUS | NOT ENTERED | Very fine grained | some very delicate flow structures; ripple marks; where more massively bedded current bedding; | Thinly bedded (but not exclusively)/slatey -often a gnarled appearance (followed by micro-laminae) but can be massive in a few places | delamination. | Buildings; especially roofing ; field walls | Thinly bedded (but not exclusively)/slatey -often a gnarled appearance (followed by micro-laminae) but can be massive in a few places |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6043 | Greenmoor Rock | 6036 | Freebirch | Thin bedded sandstone; Well bedded - usually thinly  bedded lithic (clayey) fine grained sandstone with a small feldspar content and only traces of mica | GREY | Banded | Colour of the stone when fresh may vary from pale grey, or [NAME] to brown | GREENMOOR ROCK | CARBONIFEROUS | NOT ENTERED | Fine grained | [NAME] or slatey | Thin bedding, fine grain and although predominantly grey, a slightly greenish tinge | Tendency to separate along thin (even 'trace') mudstone laminae | Buildings; especially roofing ; field walls | Thin bedding, fine grain and although predominantly grey, a slightly greenish tinge |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6044 | [NAME] | 6043 | Greenmoor Rock | ? |  |  |  | GREENMOOR ROCK | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  | Used as Stone Slate |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Sources Spreadsheet | 2012-05-16 10:20:35
6045 | Milnrow Stone | 6036 | Milnrow Sandstone | Fine grained siliceous sandstone | BUFF | Banded | Light [NAME] | MILNROW SANDSTONE | CARBONIFEROUS | NOT ENTERED | Fine grained | V fine laminae. Thinly and v regularly bedded | Finely laminated fawn-grey fine grained sandstone micaceous, fine specks of coaly material | Occasional break-up along  laminae but generally v resilient | Buildings ; field walls; some roofing | Finely laminated fawn-grey fine grained sandstone micaceous, fine specks of coaly material |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6046 | [NAME] | 6036 |  | Mainly medium to coarse grained arkosic sandstone | BUFF |  | Weathers to fawn           Fresh colour varies from buff, light brown to grey and in some places, pink | CRAWSHAW SANDSTONE | CARBONIFEROUS | NOT ENTERED | Medium grained | Cross bedded sometimes large scale; planar towards the top of sets. Massive bedding | Has most of the main characteristics of many of the underlying Namurian sandstones  rather than the Coal Measure sandstones of which it forms a part, mainly medium to coarse but fine grained in places | No particular failure features - delamination; red varieties susceptible to salt splash | Buildings ; field walls | Has most of the main characteristics of many of the underlying Namurian sandstones  rather than the Coal Measure sandstones of which it forms a part, mainly medium to coarse but fine grained in places |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6047 | Woodhead Hill Rock | 6036 |  | Mostly fairly fine (silty) or medium grained in this area | GREY | Banded | grey | WOODHEAD HILL ROCK | CARBONIFEROUS | NOT ENTERED | Fine grained | well bedded | Mostly fairly fine (silty) or medium grained in this area | Not known | Buildings ; field walls | Mostly fairly fine (silty) or medium grained in this area |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6048 | Birch Vale Stone | 6047 | Woodhead Hill Rock | Mostly fairly fine (silty) or medium grained in this area | GREY | Banded | grey | WOODHEAD HILL ROCK | CARBONIFEROUS | NOT ENTERED | Fine grained | well bedded | Mostly fairly fine (silty) or medium grained in this area | Not known | Buildings ; field walls | Mostly fairly fine (silty) or medium grained in this area |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6049 | Coal Measures Sandstones | 1 |  | ? |  |  |  | PENNINE COAL MEASURES GROUP | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area |  | 2012-05-16 10:20:35
6050 | Lower Coal Measures Sandstones | 6032 |  | Very varied - sandstones -  orthoquartzites with feldspar (often part kaolinised), siderite nodules, often with mica, lithic and carbonaceous fragments.  Grain size tends to be mainly fine but can be medium or occasionally coarse | GREY | Banded | Typically on the yellow side of [NAME]. Frequently weathers to a mid-brown on account of siderite and pyrite degradation. Even slightly green in places | PENNINE LOWER COAL MEASURES [NAME] | CARBONIFEROUS | NOT ENTERED | Fine grained | Wide variety of fluvial bedding forms - especially cross-stratification. Occasional conglomerates and breccias. Closely spaced jointing and faulting | Generally varied - typically seen as a being on the yellow side of [NAME], as distinct from most of the Namurian sandstones, which tend to be on the pink side of [NAME]. Otherwise drab grey or rusty coloured; flaggy bedding and tendency break down readily | In Derbyshire/Peak Park, apart from the formations specifically mentioned (left), the other sandstones in this group are often considered to be  unreliable when used as building stone. However they were widely used selectively in the past. Occasional atte | Field walls + a few buildings | Generally varied - typically seen as a being on the yellow side of [NAME], as distinct from most of the Namurian sandstones, which tend to be on the pink side of [NAME]. Otherwise drab grey or rusty coloured; flaggy bedding and tendency break down readily |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6051 | Grenoside Sandstone | 6050 |  | The variation over often v short distances along outcrops can be very misleading. Generally laminar grain v fine but more variable in places  (see Building Stone ID 1624) | GREY | Banded | olive/grey | GRENOSIDE SANDSTONE | CARBONIFEROUS | NOT ENTERED | Very fine grained | some very delicate flow structures; ripple marks; where more massively bedded current bedding; | Thinly bedded (but not exclusively)/slatey -often a gnarled appearance (followed by micro-laminae) but can be massive in a few places | delamination. | Buildings; especially roofing ; field walls | Thinly bedded (but not exclusively)/slatey -often a gnarled appearance (followed by micro-laminae) but can be massive in a few places |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6052 | Greenmoor Rock | 6050 |  | Thin bedded sandstone; Well bedded - usually thinly  bedded lithic (clayey) fine grained sandstone with a small feldspar content and only traces of mica | GREY | Banded | Colour of the stone when fresh may vary from pale grey, or [NAME] to brown | GREENMOOR ROCK | CARBONIFEROUS | NOT ENTERED | Fine grained | [NAME] or slatey | Thin bedding, fine grain and although predominantly grey, a slightly greenish tinge | Tendency to separate along thin (even 'trace') mudstone laminae | Buildings; especially roofing ; field walls | Thin bedding, fine grain and although predominantly grey, a slightly greenish tinge |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6053 | Milnrow Sandstone | 6050 | Milnrow Stone | Fine grained siliceous sandstone | BUFF | Banded | Light [NAME] | MILNROW SANDSTONE | CARBONIFEROUS | NOT ENTERED | Fine grained | V fine laminae. Thinly and v regularly bedded | Finely laminated fawn-grey fine grained sandstone micaceous, fine specks of coaly material | Occasional break-up along  laminae but generally v resilient | Buildings ; field walls; some roofing | Finely laminated fawn-grey fine grained sandstone micaceous, fine specks of coaly material |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6054 | [NAME] | 6050 |  | Mainly medium to coarse grained arkosic sandstone | BUFF |  | Weathers to fawn           Fresh colour varies from buff, light brown to grey and in some places, pink | CRAWSHAW SANDSTONE | CARBONIFEROUS | NOT ENTERED | Medium grained | Cross bedded sometimes large scale; planar towards the top of sets. Massive bedding | Has most of the main characteristics of many of the underlying Namurian sandstones  rather than the Coal Measure sandstones of which it forms a part, mainly medium to coarse but fine grained in places | No particular failure features - delamination; red varieties susceptible to salt splash | Buildings ; field walls | Has most of the main characteristics of many of the underlying Namurian sandstones  rather than the Coal Measure sandstones of which it forms a part, mainly medium to coarse but fine grained in places |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6055 | Woodhead Hill Rock | 6050 |  | See Key Identification Features | GREY | Banded | grey | WOODHEAD HILL ROCK | CARBONIFEROUS | NOT ENTERED | Fine grained | well bedded | Mostly fairly fine (silty) or medium grained in this area | Not known | Buildings ; field walls | Mostly fairly fine (silty) or medium grained in this area |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6056 | Namurian Sandstone | 1 | Millstone Grit | ? |  |  |  | MILLSTONE GRIT GROUP [SEE ALSO MIGR] | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | ? | Derby City Council | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6057 | Millstone Grit | 6056 |  | ? |  |  |  | MILLSTONE GRIT GROUP [SEE ALSO MIGR] | CARBONIFEROUS | NOT ENTERED |  |  |  |  | Buildings ; field walls |  |  | ? | Derby City Council | Derbyshire And Peaks English Heritage Atlas Area |  | 2012-05-16 10:20:35
6058 | Namurian Sandstone | 1 | Millstone Grit | ? |  |  |  | MILLSTONE GRIT GROUP [SEE ALSO MIGR] | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | ? | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6059 | Millstone Grit | 6058 |  | ? |  |  |  | MILLSTONE GRIT GROUP [SEE ALSO MIGR] | CARBONIFEROUS | NOT ENTERED |  |  |  |  | Buildings ; field walls |  |  | ? | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area |  | 2012-05-16 10:20:35
6060 | Rough Rock | 1 |  | Generally very coarse (but also medium) grained [NAME]/pink sandstone; arkosic but with rare pebbles; micaceous. colour variation includes mottled, grain size is Medium to coarse. | BUFF | Banded | [NAME]/pink | ROUGH ROCK | CARBONIFEROUS | NOT ENTERED | Medium grained | Cross bedded but also including micaceous flaggy and shaley bands. Slumping locally, sometimes on a large scale | Usually well bedded and consistent [NAME]/pink sandstone | The more pink/red varieties are susceptible to salt dissolution. Micaceous and shaley bands may form lines of weakness | Buildings ; field walls; some roofing | Usually well bedded and consistent [NAME]/pink sandstone |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6061 | Shaw Lane Stone | 6060 | Rough Rock | Generally very coarse (but also medium) grained [NAME]/pink sandstone; arkosic but with rare pebbles; micaceous. colour variation includes mottled, grain size is Medium to coarse. | BUFF | Banded | [NAME]/pink | ROUGH ROCK | CARBONIFEROUS | NOT ENTERED | Medium grained | Cross bedded but also including micaceous flaggy and shaley bands. Slumping locally, sometimes on a large scale | Usually well bedded and consistent [NAME]/pink sandstone | The more pink/red varieties are susceptible to salt dissolution. Micaceous and shaley bands may form lines of weakness | Buildings ; field walls; some roofing | Usually well bedded and consistent [NAME]/pink sandstone |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6062 | Hunger [NAME] | 6060 | Rough Rock | Generally very coarse (but also medium) grained [NAME]/pink sandstone; arkosic but with rare pebbles; micaceous. colour variation includes mottled, grain size is Medium to coarse. | BUFF | Banded | [NAME]/pink | ROUGH ROCK | CARBONIFEROUS | NOT ENTERED | Medium grained | Cross bedded but also including micaceous flaggy and shaley bands. Slumping locally, sometimes on a large scale | Usually well bedded and consistent [NAME]/pink sandstone | The more pink/red varieties are susceptible to salt dissolution. Micaceous and shaley bands may form lines of weakness | Buildings ; field walls; some roofing | Usually well bedded and consistent [NAME]/pink sandstone |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6063 | Coxbench Grit | 6060 | Rough Rock | [NAME]/pink sandstones - Generally very coarse (but also medium) grained arkosic but with rare pebbles; micaceous, colour variation includes mottled, grain size is Medium to coarse. | BUFF | Banded | [NAME]/pink | ROUGH ROCK | CARBONIFEROUS | NOT ENTERED | Medium grained | Cross bedded but also including micaceous flaggy and shaley bands. Slumping locally, sometimes on a large scale | Usually well bedded and consistent [NAME]/pink sandstone | The more pink/red varieties are susceptible to salt dissolution. Micaceous and shaley bands may form lines of weakness | Buildings ; field walls; some roofing | Usually well bedded and consistent [NAME]/pink sandstone |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6064 | Horsley Castle Stone | 6060 | Rough Rock | Drab, medium grained, micaceous sandstone (drab - an unhelpful Victorian description - better described as light orange) | BUFF | Banded | [NAME]/pink | ROUGH ROCK | CARBONIFEROUS | NOT ENTERED | Medium grained | see Ashover Grit | Usually well bedded and consistent [NAME]/pink sandstone | see Ashover Grit |  | Usually well bedded and consistent [NAME]/pink sandstone |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Watson 1911 | 2012-05-16 10:20:35
6065 | Morley Moor Stone | 6060 | Rough Rock | Chocolate-coloured with brown spots, micaceous sandstone; Morley Quarries | BROWN |  |  | ROUGH ROCK | CARBONIFEROUS | NOT ENTERED |  |  | see Ashover Grit |  |  | see Ashover Grit |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Watson 1911 | 2012-05-16 10:20:35
6066 | Morley Moor Stone | 6065 | Rough Rock | Light drab, medium grained slightly micaceous sandstone; Morley Quarries |  |  |  | ROUGH ROCK | CARBONIFEROUS | NOT ENTERED | Medium grained |  | see Ashover Grit |  |  | see Ashover Grit |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Watson 1911 | 2012-05-16 10:20:35
6067 | Redmires Flags | 6058 |  | ? |  |  |  | REDMIRES FLAGS | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | BGS Lexicon | 2012-05-16 10:20:35
6068 | [NAME] | 6058 |  | ? |  | Uniform | [NAME], [NAME] , brown, yellow | HUDDERSFIELD WHITE ROCK | CARBONIFEROUS | NOT ENTERED | Fine grained | Mainly massively bedded but lower parts generally flaggy | Fine to medium grained massive or flaggy sandstones; micaceous | Occasional uncemented sandy or clay partings create lines of weakness | Buildings ; field walls | Fine to medium grained massive or flaggy sandstones; micaceous |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6069 | Chatsworth Grit | 6058 |  | Variably bedded generally coarse/v coarse, even pebbly  sandstone. Noticeable red/pink variety around Buxworth; - Quartz predominates but subarkosic in places; small amounts of mica; calcite or siliceous cement | BROWN | Banded | [NAME]  /grey              NB natural colour in the NW is pink/red or purple/mauve but the spreadsheet cannot accommodate more than one colour!! | CHATSWORTH GRIT | CARBONIFEROUS | NOT ENTERED | Medium grained | Wide range of fluvio-deltaic bedforms | Medium to coarse, even pebbly in many places; however it is finer grained in the NW, medium to coarser grained than the Ashover Grit which is often more widely used in the same neighbourhood; | Preferential chemical weathering of calcareous cements particularly in coarse  varieties; feldspars may become kaolinised and result in localised disintegration | Buildings ; field walls; some roofing | Medium to coarse, even pebbly in many places; however it is finer grained in the NW, medium to coarser grained than the Ashover Grit which is often more widely used in the same neighbourhood; |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6070 | Derbyshire Oaks Stone | 6069 | Matlock Stone | Yellow, fine-grained sandstone; Derbyshire Oaks Quarries | YELLOW |  |  | CHATSWORTH GRIT | CARBONIFEROUS | NOT ENTERED |  | NB grain size not entered as every size was known to be produced here,  from silt size through to pebbly - and each had specific applications. This is probably the case in many of the quarries. | see Ashover Grit |  |  | see Ashover Grit |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Watson 1911 | 2012-05-16 10:20:35
6071 | Lumshill Sandstone | 6069 |  | ? |  |  |  | CHATSWORTH GRIT |  | NOT ENTERED |  |  |  |  |  |  |  | ? | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area |  | 2012-05-16 10:20:35
6072 | Poor Lots Sandstone | 6069 | Chatsworth Grit | Rich brown, medium grained sandstone; Poor Lots Quarries | BROWN |  |  | CHATSWORTH GRIT | CARBONIFEROUS | NOT ENTERED | Medium grained |  | see Ashover Grit |  |  | see Ashover Grit |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Watson 1911 | 2012-05-16 10:20:35
6073 | Ashover Grit | 6058 | Ashover Grit | the most highly regarded material is massively bedded, fine to medium grained, consistently [NAME] material but the stone in general illustrates tremendous variation in grain size, bedding and colour.  Note that pink and even red varieties are prominent limited areas eg around Cromford and New Mills.In places varying amounts of feldspar. Usually siliceous cement.  Fine to coarse and even rarely pebbly in places. | BUFF | Uniform | Depends on initial color but typically [NAME]/mid brown. A better general description of the fresh colour would be 'light orange' | ASHOVER GRIT | CARBONIFEROUS | NOT ENTERED | Fine grained | wide variety of sedimentary structures, including false/current/wedge/trough/laminar/planar bedding and slump structures in places. | Extremely difficult to differentiate from other similarly coloured sandstones (eg [NAME], Rough Rock or Crawshaw Sandstone) - as a generality, the Ashover Grit tends to be finer grained and more consistent but not universally so. Colour variation is considerable and can range from; light [NAME] through various browns and pinks, occasionally even red (around Cromford and in the NW) , or various combinations of these within the same bed/piece of stone. Like most of the Namurian sandstones, it usually errs on the side of '[NAME] with a pink cast' compared with many of the [NAME] sandstones which tend to be on the yellow or grey side of [NAME]. | tendency for those varieties with hematite cement (pink) to weather more aggressively particularly in 'salt splash' areas; tendency to lamination especially where there are mica partings. | Buildings ; field walls; some roofing, Pavers, Stone Slates | Extremely difficult to differentiate from other similarly coloured sandstones (eg [NAME], Rough Rock or Crawshaw Sandstone) - as a generality, the Ashover Grit tends to be finer grained and more consistent but not universally so. Colour variation is considerable and can range from; light [NAME] through various browns and pinks, occasionally even red (around Cromford and in the NW) , or various combinations of these within the same bed/piece of stone. Like most of the Namurian sandstones, it usually errs on the side of '[NAME] with a pink cast' compared with many of the [NAME] sandstones which tend to be on the yellow or grey side of [NAME]. |  | T McAlester | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6074 | [NAME] | 6073 | Darley [NAME] | Light [NAME], fine grained sandstone; [NAME] | BUFF |  |  | ASHOVER GRIT | CARBONIFEROUS | NOT ENTERED | Fine Grained |  | see Ashover Grit |  |  | see Ashover Grit |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Natural Stone Directory, 1987 | 2012-05-16 10:20:35
6075 | Darley [NAME] | 6073 | [NAME] | Light drab, compact, close-grained micaceous sandstone; [NAME] |  |  |  | ASHOVER GRIT | CARBONIFEROUS | NOT ENTERED |  |  | see Ashover Grit |  |  | see Ashover Grit |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Watson 1911 | 2012-05-16 10:20:35
6076 | Peasunhurst Stone | 6073 | Darley [NAME] | Light brown with ferruginous specks, medium-grained sandstone; Peasenhurst (Roach) Quarries | BROWN |  |  | ASHOVER GRIT | CARBONIFEROUS | NOT ENTERED | Medium grained |  | see Ashover Grit |  |  | see Ashover Grit |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Watson 1911 | 2012-05-16 10:20:35
6077 | [NAME] | 6073 | Hall Dale Stone | Salmon-coloured, fine-grained sandstone; Hall Dale Quarries | PINK |  |  | ASHOVER GRIT | CARBONIFEROUS | NOT ENTERED | Fine grained |  |  |  |  | National usage |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Watson 1911 | 2012-05-16 10:20:35
6078 | [NAME] | 6073 |  | Pink, coarse-grained sandstone; Cromford Quarries | PINK | Uniform | pink | ASHOVER GRIT | CARBONIFEROUS | NOT ENTERED | Coarse grained |  | pink coarse |  |  | pink coarse |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Watson 1911 | 2012-05-16 10:20:35
6079 | Duke's Gritstone | 6073 | Whatstandwell Stone | Coarse-grained sandstone; Duke's Quarries | PURPLE | Banded | nb true natural colour - ie lilac - not given as an option - Watson is incorrect | ASHOVER GRIT | CARBONIFEROUS | NOT ENTERED | Coarse grained |  | lilac - fine grained |  |  | lilac - fine grained |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME], pers comm. | 2012-05-16 10:20:35
6080 | Whatstandwell Stone | 6079 | Duke's | Pinkish brown, medium-grained sandstone; Duke's Quarries | PURPLE | Banded | nb true natural colour - ie lilac - not given as an option - Watson is incorrect | ASHOVER GRIT | CARBONIFEROUS | NOT ENTERED | Medium grained |  | lilac - fine grained |  |  | lilac - fine grained |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Watson 1911 | 2012-05-16 10:20:35
6081 | Beacon Hill Flags | 6073 | Ashover Grit | the most highly regarded material is massively bedded, fine to medium grained, consistently [NAME] material but the stone in general illustrates tremendous variation in grain size, bedding and colour.  Note that pink and even red varieties are prominent limited areas eg around Cromford and New Mills.In places varying amounts of feldspar. Usually siliceous cement, Fine to coarse and even rarely pebbly in places | BUFF | Uniform | Depends on initial color but typically [NAME]/mid brown. A better general description of the fresh colour would be 'light orange' | ASHOVER GRIT | CARBONIFEROUS | NOT ENTERED | Fine grained | wide variety of sedimentary structures, including false/current/wedge/trough/laminar/planar bedding and slump structures in places. | Extremely difficult to differentiate from other similarly coloured sandstones (eg [NAME], Rough Rock or Crawshaw Sandstone) - as a generality, the Ashover Grit tends to be finer grained and more consistent but not universally so. Colour variation is considerable and can range from; light [NAME] through various browns and pinks, occasionally even red (around Cromford and in the NW) , or various combinations of these within the same bed/piece of stone. Like most of the Namurian sandstones, it usually errs on the side of '[NAME] with a pink cast' compared with many of the [NAME] sandstones which tend to be on the yellow or grey side of [NAME]. | tendency for those varieties with hematite cement (pink) to weather more aggressively particularly in 'salt splash' areas; tendency to lamination especially where there are mica partings. | Buildings ; field walls; some roofing, Pavers, Stone Slates | Extremely difficult to differentiate from other similarly coloured sandstones (eg [NAME], Rough Rock or Crawshaw Sandstone) - as a generality, the Ashover Grit tends to be finer grained and more consistent but not universally so. Colour variation is considerable and can range from; light [NAME] through various browns and pinks, occasionally even red (around Cromford and in the NW) , or various combinations of these within the same bed/piece of stone. Like most of the Namurian sandstones, it usually errs on the side of '[NAME] with a pink cast' compared with many of the [NAME] sandstones which tend to be on the yellow or grey side of [NAME]. |  | T McAlester | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6082 | [NAME] | 6058 |  | ? |  |  |  | GUISELEY GRIT |  | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area |  | 2012-05-16 10:20:35
6083 | [NAME] Grit | 6058 | [NAME] | Medium- to coarse-grained slightly felspathic  sandstone | BUFF | Mottled | Grey/buff | ROACHES GRIT | CARBONIFEROUS | NOT ENTERED | Medium grained | Normal bedding; planar with little current bedding | Medium- to coarse-grained slightly felspathic  sandstone | not known | Buildings ; field walls; little used | Medium- to coarse-grained slightly felspathic  sandstone |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6084 | Corbar Grit | 6058 |  | Flaggy sandstone, medium to fine grained | BUFF | Banded | grey/buff | CORBAR GRIT | CARBONIFEROUS | NOT ENTERED | Fine grained | These beds belong to a turbidite sequence which includes numerous shale partings; [NAME] sandstone - ie a  siliceous sandstone with a higher than normal clay mineral fragment content | Generally flaggy with well marked bedding | Potential laminar break-up | Buildings ; field walls | Generally flaggy with well marked bedding |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6085 | [NAME] | 6058 | Pule Hill Grit | See Key Identification Features |  | Banded | grey/buff - blackens easily | MIDGLEY GRIT | CARBONIFEROUS | NOT ENTERED | Fine grained | massive thick bedded; flaggy or nodular in other places | [NAME]/mid brown fine to medium grained used v extensively in NW - range of bed depths | large ferruginous concretions ('mares balls') up to 1m [NAME]; hardness can very from sandy to v hard | Buildings ; field walls; some roofing | [NAME]/mid brown fine to medium grained used v extensively in NW - range of bed depths |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6086 | Readycon [NAME] | 6058 | Readycon Dean Grit | ? |  |  |  | READYCON DEAN FLAGS | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Sources Spreadsheet | 2012-05-16 10:20:35
6087 | [NAME] | 6058 | [NAME] | An extremely tough generally coarse grained massively bedded grey sandstone; Predominantly coarse grained sandstone; feldspar and lithic content often high; feldspar often initial shows signs of kaolinisation; mica usually evident, even in weathered specimens; cement usually siliceous | GREY | Mottled | Mid grey with white quartz coarse grains or pebbles often evident     Original colour in places is pink but column H does not permit reference | KINDERSCOUT GRIT | CARBONIFEROUS | NOT ENTERED | Coarse grained | Massive but with extensive and pronounced cross bedding giving a flaggy appearance to many crags | Mainly coarse but often poorly sorted, massive bedding | Unusual. Extremely tough and therefore difficult to work may break up along micaceous planes or where lithic components predominate, or where feldspar s have become kaolinised | Buildings ; field walls; some roofing | Mainly coarse but often poorly sorted, massive bedding |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6088 | [NAME] | 6087 | [NAME] | An extremely tough generally coarse grained massively bedded grey sandstone; Predominantly coarse grained sandstone; feldspar and lithic content often high; feldspar often initial shows signs of kaolinisation; mica usually evident, even in weathered specimens; cement usually siliceous | GREY | Mottled | Mid grey with white quartz coarse grains or pebbles often evident     Original colour in places is pink but column H does not permit reference | KINDERSCOUT GRIT | CARBONIFEROUS | NOT ENTERED | Coarse grained | Massive but with extensive and pronounced cross bedding giving a flaggy appearance to many crags | Mainly coarse but often poorly sorted, massive bedding | Unusual. Extremely tough and therefore difficult to work may break up along micaceous planes or where lithic components predominate, or where feldspar s have become kaolinised | Buildings ; field walls; some roofing | Mainly coarse but often poorly sorted, massive bedding |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6089 | Chinley Moor Stone | 6087 | [NAME] | An extremely tough generally coarse grained massively bedded grey sandstone; Predominantly coarse grained sandstone; feldspar and lithic content often high; feldspar often initial shows signs of kaolinisation; mica usually evident, even in weathered specimens; cement usually siliceous | GREY | Mottled | Mid grey with white quartz coarse grains or pebbles often evident     Original colour in places is pink but column H does not permit reference | KINDERSCOUT GRIT | CARBONIFEROUS | NOT ENTERED | Coarse grained | Massive but with extensive and pronounced cross bedding giving a flaggy appearance to many crags | Mainly coarse but often poorly sorted, massive bedding | Unusual. Extremely tough and therefore difficult to work may break up along micaceous planes or where lithic components predominate, or where feldspar s have become kaolinised | Buildings ; field walls; some roofing | Mainly coarse but often poorly sorted, massive bedding |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6090 | Shire Hill Stone | 6087 | [NAME] | An extremely tough generally coarse grained massively bedded grey sandstone; Predominantly coarse grained sandstone; feldspar and lithic content often high; feldspar often initial shows signs of kaolinisation; mica usually evident, even in weathered specimens; cement usually siliceous | GREY | Mottled | Mid grey with white quartz coarse grains or pebbles often evident     Original colour in places is pink but column H does not permit reference | KINDERSCOUT GRIT | CARBONIFEROUS | NOT ENTERED | Coarse grained | Massive but with extensive and pronounced cross bedding giving a flaggy appearance to many crags | Mainly coarse but often poorly sorted, massive bedding | Unusual. Extremely tough and therefore difficult to work may break up along micaceous planes or where lithic components predominate, or where feldspar s have become kaolinised | Buildings ; field walls; some roofing | Mainly coarse but often poorly sorted, massive bedding |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6091 | Lower Kinderscout Grit | 6087 | [NAME] | An extremely tough generally coarse grained, massively bedded grey sandstone; felspathic (part kaolinised)  often with noticeable quartz pebbles | GREY | Mottled | Grey with white flecks; sometimes pink/buff/lilac when freshly cut | LOWER KINDERSCOUT GRIT | CARBONIFEROUS | NOT ENTERED | Coarse grained | Large scale current-bedded foresets | Coarse sandstone; 'salt and pepper' texture | Unusual. Extremely tough and therefore difficult to work may break up along micaceous planes or where lithic components predominate | Buildings ; field walls | Coarse sandstone; 'salt and pepper' texture |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6092 | Shale Grit | 6058 | [NAME] | Generally a flaggy but occasionally coarse sandstone,colour variation is also mottled | BROWN | Banded | rust brown | SHALE GRIT | CARBONIFEROUS | NOT ENTERED | Medium grained | turbidite features (alternating sandstone/mudstone bedding, flute casts etc), graded  bedding, variable bed thickness | slabby but occasionally massive coarse sandstones, sometimes medium to coarse to pebbly within extensive mudstone/sandstone sequences | Strong tendency to delaminate along argillaceous planes; iron oxide leaching and staining | Buildings (rarely)  ; field walls | slabby but occasionally massive coarse sandstones, sometimes medium to coarse to pebbly within extensive mudstone/sandstone sequences |  | [NAME]  (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME]  (NSC) | 2012-05-16 10:20:35
6093 | Kinder Bank Stone | 6092 | Shale Grit | Generally a flaggy but occasionally coarse sandstone,colour variation is also mottled | BROWN | Banded | rust brown | SHALE GRIT | CARBONIFEROUS | NOT ENTERED | Medium grained | turbidite features (alternating sandstone/mudstone bedding, flute casts etc), graded  bedding, variable bed thickness | slabby but occasionally massive coarse sandstones, sometimes medium to coarse to pebbly within extensive mudstone/sandstone sequences | Strong tendency to delaminate along argillaceous planes; iron oxide leaching and staining | Buildings (rarely)  ; field walls | slabby but occasionally massive coarse sandstones, sometimes medium to coarse to pebbly within extensive mudstone/sandstone sequences |  | [NAME]  (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME]  (NSC) | 2012-05-16 10:20:35
6094 | [NAME] | 6092 | Shale Grit | Generally a flaggy but occasionally coarse sandstone,colour variation is also mottled | BROWN | Banded | rust brown | SHALE GRIT | CARBONIFEROUS | NOT ENTERED | Medium grained | turbidite features (alternating sandstone/mudstone bedding, flute casts etc), graded  bedding, variable bed thickness | slabby but occasionally massive coarse sandstones, sometimes medium to coarse to pebbly within extensive mudstone/sandstone sequences | Strong tendency to delaminate along argillaceous planes; iron oxide leaching and staining | Buildings (rarely)  ; field walls | slabby but occasionally massive coarse sandstones, sometimes medium to coarse to pebbly within extensive mudstone/sandstone sequences |  | [NAME]  (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME]  (NSC) | 2012-05-16 10:20:35
6095 | Namurian Sandstone | 1 | Millstone Grit | ? |  |  |  | MILLSTONE GRIT GROUP [SEE ALSO MIGR] | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | ? | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6096 | Millstone Grit | 6095 |  | ? |  |  |  | MILLSTONE GRIT GROUP [SEE ALSO MIGR] | CARBONIFEROUS | NOT ENTERED |  |  |  |  | Buildings ; field walls |  |  | ? | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area |  | 2012-05-16 10:20:35
6097 | Rough Rock Flags | 6095 |  | Can be found in flags of considerable size - say + 2m x 2m in buildings NE of Winscar Reservoir,  colour variation includes mottled.  Generally a good all purpose building stone | BUFF | Banded | [NAME] | ROUGH ROCK FLAGS | CARBONIFEROUS | NOT ENTERED | Fine grained | planar bedding; marked current bedding with thin 'cleavable' foresets common in some areas. | [NAME] finely bedded; particularly thin detachable sheets | may delaminate or crack if laminae spacings are too close | Roofing particularly; buildings ; field walls | [NAME] finely bedded; particularly thin detachable sheets |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6098 | Rough Rock | 6095 |  | Generally very coarse (but also medium) grained [NAME]/pink sandstone; arkosic but with rare pebbles; micaceous. colour variation includes mottled, grain size is Medium to coarse. | BUFF | Banded | [NAME]/pink | ROUGH ROCK | CARBONIFEROUS | NOT ENTERED | Medium grained | Cross bedded but also including micaceous flaggy and shaley bands. Slumping locally, sometimes on a large scale | Usually well bedded and consistent [NAME]/pink sandstone | The more pink/red varieties are susceptible to salt dissolution. Micaceous and shaley bands may form lines of weakness | Buildings ; field walls; some roofing | Usually well bedded and consistent [NAME]/pink sandstone |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6099 | Danebower Grit | 6098 | Rough Rock | Generally very coarse (but also medium) grained [NAME]/pink sandstone; arkosic but with rare pebbles; micaceous, colour variation includes mottled, grain size is Medium to coarse. | BUFF | Banded | [NAME]/pink | ROUGH ROCK | CARBONIFEROUS | NOT ENTERED | Medium grained | Cross bedded but also including micaceous flaggy and shaley bands. Slumping locally, sometimes on a large scale | Usually well bedded and consistent [NAME]/pink sandstone | The more pink/red varieties are susceptible to salt dissolution. Micaceous and shaley bands may form lines of weakness | Buildings ; field walls; some roofing | Usually well bedded and consistent [NAME]/pink sandstone |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6100 | [NAME] | 6098 | Rough Rock | Generally very coarse (but also medium) grained [NAME]/pink sandstone; arkosic but with rare pebbles; micaceous. colour variation includes mottled, grain size is Medium to coarse. | BUFF | Banded | [NAME]/pink | ROUGH ROCK | CARBONIFEROUS | NOT ENTERED | Medium grained | Cross bedded but also including micaceous flaggy and shaley bands. Slumping locally, sometimes on a large scale | Usually well bedded and consistent [NAME]/pink sandstone | The more pink/red varieties are susceptible to salt dissolution. Micaceous and shaley bands may form lines of weakness | Buildings ; field walls; some roofing | Usually well bedded and consistent [NAME]/pink sandstone |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6101 | Redmires Flags | 6095 |  | ? |  |  |  | REDMIRES FLAGS | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | BGS Lexicon | 2012-05-16 10:20:35
6102 | [NAME] | 6095 |  | ? |  | Uniform | [NAME], [NAME] , brown, yellow | HUDDERSFIELD WHITE ROCK | CARBONIFEROUS | NOT ENTERED | Fine grained | Mainly massively bedded but lower parts generally flaggy | Fine to medium grained massive or flaggy sandstones; micaceous | Occasional uncemented sandy or clay partings create lines of weakness | Buildings ; field walls | Fine to medium grained massive or flaggy sandstones; micaceous |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6103 | Chatsworth Grit | 6095 |  | Variably bedded generally coarse/v coarse, even pebbly  sandstone. Noticeable red/pink variety around Buxworth; - Quartz predominates but subarkosic in places; small amounts of mica; calcite or siliceous cement | BROWN | Banded | [NAME]  /grey              NB natural colour in the NW is pink/red or purple/mauve but the spreadsheet cannot accommodate more than one colour!! | CHATSWORTH GRIT | CARBONIFEROUS | NOT ENTERED | Medium grained | Wide range of fluvio-deltaic bedforms | Medium to coarse, even pebbly in many places; however it is finer grained in the NW, medium to coarser grained than the Ashover Grit which is often more widely used in the same neighbourhood; | Preferential chemical weathering of calcareous cements particularly in coarse  varieties; feldspars may become kaolinised and result in localised disintegration | Buildings ; field walls; some roofing | Medium to coarse, even pebbly in many places; however it is finer grained in the NW, medium to coarser grained than the Ashover Grit which is often more widely used in the same neighbourhood; |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6104 | [NAME] | 6103 | Chatsworth Grit | Variably bedded generally coarse/v coarse, even pebbly  sandstone. Noticeable red/pink variety around Buxworth; - Quartz predominates but subarkosic in places; small amounts of mica; calcite or siliceous cement | BROWN | Banded | [NAME]  /grey              NB natural colour in the NW is pink/red or purple/mauve but the spreadsheet cannot accommodate more than one colour!! | CHATSWORTH GRIT | CARBONIFEROUS | NOT ENTERED | Medium grained | Wide range of fluvio-deltaic bedforms | Generally a medium to coarser grained than the Ashover Grit which is often more widely used in the same neighbourhood; | Preferential chemical weathering of calcareous cements particularly in coarse  varieties; feldspars may become kaolinised and result in localised disintegration | Buildings ; field walls; some roofing | Generally a medium to coarser grained than the Ashover Grit which is often more widely used in the same neighbourhood; |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6105 | Grindleford Stone | 6103 | Chatsworth Grit | Drab and brown. mottled, coarse-grained sandstone; Bole Hill Quarries, Grindleford (drab - an unhelpful Victorian description - better described as light orange) | BROWN | Mottled |  | CHATSWORTH GRIT | CARBONIFEROUS | NOT ENTERED | Coarse grained |  | see Ashover Grit |  |  | see Ashover Grit |  | DGCA | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | Watson 1911 | 2012-05-16 10:20:35
6106 | [NAME] | 6070 | Chatsworth Grit | ? |  |  |  | CHATSWORTH GRIT | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Sources Spreadsheet | 2012-05-16 10:20:35
6107 | Millstone Edge Stone | 6103 | Chatsworth Grit | ? |  |  |  | CHATSWORTH GRIT | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | Sources Spreadsheet | 2012-05-16 10:20:35
6108 | Ashover Grit | 6095 | Ashover Grit | the most highly regarded material is massively bedded, fine to medium grained, consistently [NAME] material but the stone in general illustrates tremendous variation in grain size, bedding and colour.  Note that pink and even red varieties are prominent limited areas eg around Cromford and New Mills.In places varying amounts of feldspar. Usually siliceous cement.  Fine to coarse and even rarely pebbly in places. | BUFF | Uniform | Depends on initial color but typically [NAME]/mid brown. A better general description of the fresh colour would be 'light orange' | ASHOVER GRIT | CARBONIFEROUS | NOT ENTERED | Fine grained | wide variety of sedimentary structures, including false/current/wedge/trough/laminar/planar bedding and slump structures in places. | Extremely difficult to differentiate from other similarly coloured sandstones (eg [NAME], Rough Rock or Crawshaw Sandstone) - as a generality, the Ashover Grit tends to be finer grained and more consistent but not universally so. Colour variation is considerable and can range from; light [NAME] through various browns and pinks, occasionally even red (around Cromford and in the NW) , or various combinations of these within the same bed/piece of stone. Like most of the Namurian sandstones, it usually errs on the side of '[NAME] with a pink cast' compared with many of the [NAME] sandstones which tend to be on the yellow or grey side of [NAME]. | tendency for those varieties with hematite cement (pink) to weather more aggressively particularly in 'salt splash' areas; tendency to lamination especially where there are mica partings. | Buildings ; field walls; some roofing, Pavers, Stone Slates | Extremely difficult to differentiate from other similarly coloured sandstones (eg [NAME], Rough Rock or Crawshaw Sandstone) - as a generality, the Ashover Grit tends to be finer grained and more consistent but not universally so. Colour variation is considerable and can range from; light [NAME] through various browns and pinks, occasionally even red (around Cromford and in the NW) , or various combinations of these within the same bed/piece of stone. Like most of the Namurian sandstones, it usually errs on the side of '[NAME] with a pink cast' compared with many of the [NAME] sandstones which tend to be on the yellow or grey side of [NAME]. |  | T McAlester | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6109 | [NAME] | 6108 | Ashover Grit | the most highly regarded material is massively bedded, fine to medium grained, consistently [NAME] material but the stone in general illustrates tremendous variation in grain size, bedding and colour.  Note that pink and even red varieties are prominent limited areas eg around Cromford and New Mills.In places varying amounts of feldspar. Usually siliceous cement.  Fine to coarse and even rarely pebbly in places. | BUFF | Uniform | Depends on initial color but typically [NAME]/mid brown. A better general description of the fresh colour would be 'light orange' | ASHOVER GRIT | CARBONIFEROUS | NOT ENTERED | Fine grained | wide variety of sedimentary structures, including false/current/wedge/trough/laminar/planar bedding and slump structures in places. | Extremely difficult to differentiate from other similarly coloured sandstones (eg [NAME], Rough Rock or Crawshaw Sandstone) - as a generality, the Ashover Grit tends to be finer grained and more consistent but not universally so. Colour variation is considerable and can range from; light [NAME] through various browns and pinks, occasionally even red (around Cromford and in the NW) , or various combinations of these within the same bed/piece of stone. Like most of the Namurian sandstones, it usually errs on the side of '[NAME] with a pink cast' compared with many of the [NAME] sandstones which tend to be on the yellow or grey side of [NAME]. | tendency for those varieties with hematite cement (pink) to weather more aggressively particularly in 'salt splash' areas; tendency to lamination especially where there are mica partings. | Buildings ; field walls; some roofing, Pavers, Stone Slates | Extremely difficult to differentiate from other similarly coloured sandstones (eg [NAME], Rough Rock or Crawshaw Sandstone) - as a generality, the Ashover Grit tends to be finer grained and more consistent but not universally so. Colour variation is considerable and can range from; light [NAME] through various browns and pinks, occasionally even red (around Cromford and in the NW) , or various combinations of these within the same bed/piece of stone. Like most of the Namurian sandstones, it usually errs on the side of '[NAME] with a pink cast' compared with many of the [NAME] sandstones which tend to be on the yellow or grey side of [NAME]. |  | T McAlester | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6110 | Stanton Moor - Pilough Stone | 6108 | Ashover Grit | the most highly regarded material is massively bedded, fine to medium grained, consistently [NAME] material but the stone in general illustrates tremendous variation in grain size, bedding and colour.  Note that pink and even red varieties are prominent limited areas eg around Cromford and New Mills.In places varying amounts of feldspar. Usually siliceous cement.  Fine to coarse and even rarely pebbly in places. | BUFF | Uniform | Depends on initial color but typically [NAME]/mid brown. A better general description of the fresh colour would be 'light orange' | ASHOVER GRIT | CARBONIFEROUS | NOT ENTERED | Fine grained | wide variety of sedimentary structures, including false/current/wedge/trough/laminar/planar bedding and slump structures in places. | Extremely difficult to differentiate from other similarly coloured sandstones (eg [NAME], Rough Rock or Crawshaw Sandstone) - as a generality, the Ashover Grit tends to be finer grained and more consistent but not universally so. Colour variation is considerable and can range from; light [NAME] through various browns and pinks, occasionally even red (around Cromford and in the NW) , or various combinations of these within the same bed/piece of stone. Like most of the Namurian sandstones, it usually errs on the side of '[NAME] with a pink cast' compared with many of the [NAME] sandstones which tend to be on the yellow or grey side of [NAME]. | tendency for those varieties with hematite cement (pink) to weather more aggressively particularly in 'salt splash' areas; tendency to lamination especially where there are mica partings. | Buildings ; field walls; some roofing, Pavers, Stone Slates | Extremely difficult to differentiate from other similarly coloured sandstones (eg [NAME], Rough Rock or Crawshaw Sandstone) - as a generality, the Ashover Grit tends to be finer grained and more consistent but not universally so. Colour variation is considerable and can range from; light [NAME] through various browns and pinks, occasionally even red (around Cromford and in the NW) , or various combinations of these within the same bed/piece of stone. Like most of the Namurian sandstones, it usually errs on the side of '[NAME] with a pink cast' compared with many of the [NAME] sandstones which tend to be on the yellow or grey side of [NAME]. |  | T McAlester | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6111 | Peak  Moor Sandstone | 6108 | Ashover Grit | ? |  |  |  | ASHOVER GRIT | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | Sources Spreadsheet | 2012-05-16 10:20:35
6112 | Birchover Stone | 6108 | Ashover Grit | the most highly regarded material is massively bedded, fine to medium grained, consistently [NAME] material but the stone in general illustrates tremendous variation in grain size, bedding and colour.  Note that pink and even red varieties are prominent limited areas eg around Cromford and New Mills.In places varying amounts of feldspar. Usually siliceous cement.  Fine to coarse and even rarely pebbly in places. | BUFF | Uniform | Depends on initial color but typically [NAME]/mid brown. A better general description of the fresh colour would be 'light orange' | ASHOVER GRIT | CARBONIFEROUS | NOT ENTERED | Fine grained | wide variety of sedimentary structures, including false/current/wedge/trough/laminar/planar bedding and slump structures in places. | Extremely difficult to differentiate from other similarly coloured sandstones (eg [NAME], Rough Rock or Crawshaw Sandstone) - as a generality, the Ashover Grit tends to be finer grained and more consistent but not universally so. Colour variation is considerable and can range from; light [NAME] through various browns and pinks, occasionally even red (around Cromford and in the NW) , or various combinations of these within the same bed/piece of stone. Like most of the Namurian sandstones, it usually errs on the side of '[NAME] with a pink cast' compared with many of the [NAME] sandstones which tend to be on the yellow or grey side of [NAME]. | tendency for those varieties with hematite cement (pink) to weather more aggressively particularly in 'salt splash' areas; tendency to lamination especially where there are mica partings. | Buildings ; field walls; some roofing, Pavers, Stone Slates | Extremely difficult to differentiate from other similarly coloured sandstones (eg [NAME], Rough Rock or Crawshaw Sandstone) - as a generality, the Ashover Grit tends to be finer grained and more consistent but not universally so. Colour variation is considerable and can range from; light [NAME] through various browns and pinks, occasionally even red (around Cromford and in the NW) , or various combinations of these within the same bed/piece of stone. Like most of the Namurian sandstones, it usually errs on the side of '[NAME] with a pink cast' compared with many of the [NAME] sandstones which tend to be on the yellow or grey side of [NAME]. |  | T McAlester | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6113 | Stanton Moor Sandstone | 6108 | Ashover Grit | ? |  |  |  | ASHOVER GRIT | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | Sources Spreadsheet | 2012-05-16 10:20:35
6114 | Stanton Buff Gritstone | 6108 | Ashover Grit | the most highly regarded material is massively bedded, fine to medium grained, consistently [NAME] material but the stone in general illustrates tremendous variation in grain size, bedding and colour.  Note that pink and even red varieties are prominent limited areas eg around Cromford and New Mills.In places varying amounts of feldspar. Usually siliceous cement.  Fine to coarse and even rarely pebbly in places. | BUFF | Uniform | Depends on initial color but typically [NAME]/mid brown. A better general description of the fresh colour would be 'light orange' | ASHOVER GRIT | CARBONIFEROUS | NOT ENTERED | Fine grained | wide variety of sedimentary structures, including false/current/wedge/trough/laminar/planar bedding and slump structures in places. | Extremely difficult to differentiate from other similarly coloured sandstones (eg [NAME], Rough Rock or Crawshaw Sandstone) - as a generality, the Ashover Grit tends to be finer grained and more consistent but not universally so. Colour variation is considerable and can range from; light [NAME] through various browns and pinks, occasionally even red (around Cromford and in the NW) , or various combinations of these within the same bed/piece of stone. Like most of the Namurian sandstones, it usually errs on the side of '[NAME] with a pink cast' compared with many of the [NAME] sandstones which tend to be on the yellow or grey side of [NAME]. | tendency for those varieties with hematite cement (pink) to weather more aggressively particularly in 'salt splash' areas; tendency to lamination especially where there are mica partings. | Buildings ; field walls; some roofing, Pavers, Stone Slates | Extremely difficult to differentiate from other similarly coloured sandstones (eg [NAME], Rough Rock or Crawshaw Sandstone) - as a generality, the Ashover Grit tends to be finer grained and more consistent but not universally so. Colour variation is considerable and can range from; light [NAME] through various browns and pinks, occasionally even red (around Cromford and in the NW) , or various combinations of these within the same bed/piece of stone. Like most of the Namurian sandstones, it usually errs on the side of '[NAME] with a pink cast' compared with many of the [NAME] sandstones which tend to be on the yellow or grey side of [NAME]. |  | T McAlester | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6115 | [NAME] | 6108 | Ashover Grit | ? |  |  |  | ASHOVER GRIT | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | Sources Spreadsheet | 2012-05-16 10:20:35
6116 | [NAME] | 6095 |  | ? |  |  |  | GUISELEY GRIT |  | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area |  | 2012-05-16 10:20:35
6117 | Roaches Grit | 6095 | [NAME] | Medium- to coarse-grained slightly felspathic  sandstone | BUFF | Mottled | Grey/buff | ROACHES GRIT | CARBONIFEROUS | NOT ENTERED | Medium grained | Normal bedding; planar with little current bedding | Medium- to coarse-grained slightly felspathic  sandstone | not known | Buildings ; field walls; little used | Medium- to coarse-grained slightly felspathic  sandstone |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6118 | Corbar Grit | 6095 |  | Flaggy sandstone, medium to fine grained | BUFF | Banded | grey/buff | CORBAR GRIT | CARBONIFEROUS | NOT ENTERED | Fine grained | These beds belong to a turbidite sequence which includes numerous shale partings; [NAME] sandstone - ie a  siliceous sandstone with a higher than normal clay mineral fragment content | Generally flaggy with well marked bedding | Potential laminar break-up | Buildings ; field walls | Generally flaggy with well marked bedding |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6119 | [NAME] | 6095 | Pule Hill Grit | See Key Identification Features |  | Banded | grey/buff - blackens easily | MIDGLEY GRIT | CARBONIFEROUS | NOT ENTERED | Fine grained | massive thick bedded; flaggy or nodular in other places | [NAME]/mid brown fine to medium grained used v extensively in NW - range of bed depths | large ferruginous concretions ('mares balls') up to 1m [NAME]; hardness can very from sandy to v hard | Buildings ; field walls; some roofing | [NAME]/mid brown fine to medium grained used v extensively in NW - range of bed depths |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6120 | Thornseat Stone | 6119 | [NAME] | ? |  |  |  | MIDGLEY GRIT | CARBONIFEROUS | NOT ENTERED | Fine grained | massive thick bedded; flaggy or nodular in other places |  |  | Buildings ; field walls; some roofing | Worked in Thornseats Quarries for stone slates |  | DGCA | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | Sources Spreadsheet | 2012-05-16 10:20:35
6121 | [NAME] | 6119 | [NAME] | See Key Identification Features |  | Banded | grey/buff - blackens easily | MIDGLEY GRIT | CARBONIFEROUS | NOT ENTERED | Fine grained | massive thick bedded; flaggy or nodular in other places | [NAME]/mid brown fine to medium grained used v extensively in NW - range of bed depths | large ferruginous concretions ('mares balls') up to 1m [NAME]; hardness can very from sandy to v hard | Buildings ; field walls; some roofing | [NAME]/mid brown fine to medium grained used v extensively in NW - range of bed depths |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6122 | [NAME] | 6119 | Pule Hill Grit | See Key Identification Features |  | Banded | grey/buff - blackens easily | MIDGLEY GRIT | CARBONIFEROUS | NOT ENTERED | Fine grained | massive thick bedded; flaggy or nodular in other places | [NAME]/mid brown fine to medium grained used v extensively in NW - range of bed depths | large ferruginous concretions ('mares balls') up to 1m [NAME]; hardness can very from sandy to v hard | Buildings ; field walls; some roofing | [NAME]/mid brown fine to medium grained used v extensively in NW - range of bed depths |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6123 | Readycon [NAME] | 6095 | Readycon Dean Grit | ? |  |  |  | READYCON DEAN FLAGS | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | Sources Spreadsheet | 2012-05-16 10:20:35
6124 | [NAME] | 6095 | [NAME] | An extremely tough generally coarse grained massively bedded grey sandstone; Predominantly coarse grained sandstone; feldspar and lithic content often high; feldspar often initial shows signs of kaolinisation; mica usually evident, even in weathered specimens; cement usually siliceous | GREY | Mottled | Mid grey with white quartz coarse grains or pebbles often evident     Original colour in places is pink but column H does not permit reference | KINDERSCOUT GRIT | CARBONIFEROUS | NOT ENTERED | Coarse grained | Massive but with extensive and pronounced cross bedding giving a flaggy appearance to many crags | Mainly coarse but often poorly sorted, massive bedding | Unusual. Extremely tough and therefore difficult to work may break up along micaceous planes or where lithic components predominate, or where feldspar s have become kaolinised | Buildings ; field walls; some roofing | Mainly coarse but often poorly sorted, massive bedding |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6125 | [NAME] | 6124 | [NAME] | An extremely tough generally coarse grained massively bedded grey sandstone; Predominantly coarse grained sandstone; feldspar and lithic content often high; feldspar often initial shows signs of kaolinisation; mica usually evident, even in weathered specimens; cement usually siliceous | GREY | Mottled | Mid grey with white quartz coarse grains or pebbles often evident     Original colour in places is pink but column H does not permit reference | KINDERSCOUT GRIT | CARBONIFEROUS | NOT ENTERED | Coarse grained | Massive but with extensive and pronounced cross bedding giving a flaggy appearance to many crags | Mainly coarse but often poorly sorted, massive bedding | Unusual. Extremely tough and therefore difficult to work may break up along micaceous planes or where lithic components predominate, or where feldspar s have become kaolinised | Buildings ; field walls; some roofing | Mainly coarse but often poorly sorted, massive bedding |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6126 | Chinley Moor Stone | 6124 | [NAME] | An extremely tough generally coarse grained massively bedded grey sandstone; Predominantly coarse grained sandstone; feldspar and lithic content often high; feldspar often initial shows signs of kaolinisation; mica usually evident, even in weathered specimens; cement usually siliceous | GREY | Mottled | Mid grey with white quartz coarse grains or pebbles often evident     Original colour in places is pink but column H does not permit reference | KINDERSCOUT GRIT | CARBONIFEROUS | NOT ENTERED | Coarse grained | Massive but with extensive and pronounced cross bedding giving a flaggy appearance to many crags | Mainly coarse but often poorly sorted, massive bedding | Unusual. Extremely tough and therefore difficult to work may break up along micaceous planes or where lithic components predominate, or where feldspar s have become kaolinised | Buildings ; field walls; some roofing | Mainly coarse but often poorly sorted, massive bedding |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6127 | Shire Hill Stone | 6124 | [NAME] | An extremely tough generally coarse grained massively bedded grey sandstone; Predominantly coarse grained sandstone; feldspar and lithic content often high; feldspar often initial shows signs of kaolinisation; mica usually evident, even in weathered specimens; cement usually siliceous | GREY | Mottled | Mid grey with white quartz coarse grains or pebbles often evident     Original colour in places is pink but column H does not permit reference | KINDERSCOUT GRIT | CARBONIFEROUS | NOT ENTERED | Coarse grained | Massive but with extensive and pronounced cross bedding giving a flaggy appearance to many crags | Mainly coarse but often poorly sorted, massive bedding | Unusual. Extremely tough and therefore difficult to work may break up along micaceous planes or where lithic components predominate, or where feldspar s have become kaolinised | Buildings ; field walls; some roofing | Mainly coarse but often poorly sorted, massive bedding |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6128 | Lower Kinderscout Grit | 6124 | [NAME] | An extremely tough generally coarse grained, massively bedded grey sandstone; felspathic (part kaolinised)  often with noticeable quartz pebbles | GREY | Mottled | Grey with white flecks; sometimes pink/buff/lilac when freshly cut | LOWER KINDERSCOUT GRIT | CARBONIFEROUS | NOT ENTERED | Coarse grained | Large scale current-bedded foresets | Coarse sandstone; 'salt and pepper' texture | Unusual. Extremely tough and therefore difficult to work may break up along micaceous planes or where lithic components predominate | Buildings ; field walls | Coarse sandstone; 'salt and pepper' texture |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6129 | Longnor Sandstone | 6095 | [NAME] | Thin to medium  bedded grey/brown sandstone | GREY | Banded | Grey -buff | LONGNOR SANDSTONE | CARBONIFEROUS | NOT ENTERED | Fine grained | Turbidite features (alternating sandstone/mudstone bedding, flute casts etc) | Generally thinly bedded, medium to fine grained sandstones | Probable deterioration along clay-rich laminae | Buildings ; field walls | Generally thinly bedded, medium to fine grained sandstones |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6130 | Shale Grit | 6095 | [NAME] | Generally a flaggy but occasionally coarse sandstone,colour variation is also mottled | BROWN | Banded | rust brown | SHALE GRIT | CARBONIFEROUS | NOT ENTERED | Medium grained | turbidite features (alternating sandstone/mudstone bedding, flute casts etc), graded  bedding, variable bed thickness | slabby but occasionally massive coarse sandstones, sometimes medium to coarse to pebbly within extensive mudstone/sandstone sequences | Strong tendency to delaminate along argillaceous planes; iron oxide leaching and staining | Buildings (rarely)  ; field walls | slabby but occasionally massive coarse sandstones, sometimes medium to coarse to pebbly within extensive mudstone/sandstone sequences |  | [NAME]  (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME]  (NSC) | 2012-05-16 10:20:35
6131 | Kinder Bank Stone | 6130 | Shale Grit | Generally a flaggy but occasionally coarse sandstone,colour variation is also mottled | BROWN | Banded | rust brown | SHALE GRIT | CARBONIFEROUS | NOT ENTERED | Medium grained | turbidite features (alternating sandstone/mudstone bedding, flute casts etc), graded  bedding, variable bed thickness | slabby but occasionally massive coarse sandstones, sometimes medium to coarse to pebbly within extensive mudstone/sandstone sequences | Strong tendency to delaminate along argillaceous planes; iron oxide leaching and staining | Buildings (rarely)  ; field walls | slabby but occasionally massive coarse sandstones, sometimes medium to coarse to pebbly within extensive mudstone/sandstone sequences |  | [NAME]  (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME]  (NSC) | 2012-05-16 10:20:35
6132 | [NAME] | 6130 | Shale Grit | Generally a flaggy but occasionally coarse sandstone,colour variation is also mottled | BROWN | Banded | rust brown | SHALE GRIT | CARBONIFEROUS | NOT ENTERED | Medium grained | turbidite features (alternating sandstone/mudstone bedding, flute casts etc), graded  bedding, variable bed thickness | slabby but occasionally massive coarse sandstones, sometimes medium to coarse to pebbly within extensive mudstone/sandstone sequences | Strong tendency to delaminate along argillaceous planes; iron oxide leaching and staining | Buildings (rarely)  ; field walls | slabby but occasionally massive coarse sandstones, sometimes medium to coarse to pebbly within extensive mudstone/sandstone sequences |  | [NAME]  (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME]  (NSC) | 2012-05-16 10:20:35
6133 | Widmerpool Formation | 1 | [NAME] | Very thick sequence of mudstones with thin sandstones and in a few places, muddy limestones; thin cherty limestones near base | GREY | Banded | mid and generally lighter greys; occasionally [NAME] | WIDMERPOOL FORMATION | CARBONIFEROUS | NOT ENTERED | Fine grained | Turbidite features | Thin flaggy beds; remarkably has the appearance of concrete paving flags when weathered  (and coincidentally, main usage is near one of the largest concrete paver works in the UK); detailed examination can distinguish this stone from concrete | Tendency to delaminate | Buildings -  v limited; field walls | Thin flaggy beds; remarkably has the appearance of concrete paving flags when weathered  (and coincidentally, main usage is near one of the largest concrete paver works in the UK); detailed examination can distinguish this stone from concrete |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6134 | [NAME] | 6133 | Widmerpool Formation | ? |  |  |  | WIDMERPOOL FORMATION | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6135 | [NAME] | 1 |  | Flaggy; sandstones in sequence have a high lithic content; generally arkosic | BROWN | Banded | rust brown | BOWLAND SHALE FORMATION | CARBONIFEROUS | NOT ENTERED | Fine grained | Well bedded - turbidite sequence | Generally thinly bedded, dark, medium to fine grained sandstones; [NAME] arkosic sandstones | tendency to delaminate along argillaceous planes; iron oxide leaching and staining | Buildings (rarely)  ; field walls | Generally thinly bedded, dark, medium to fine grained sandstones; [NAME] arkosic sandstones |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6136 | [NAME] | 1 |  | Although well bedded, hardness precludes shaping | GREY | Banded | mid grey | MINN SANDSTONES | CARBONIFEROUS | NOT ENTERED | Fine grained | Well bedded - turbidite sequence | Generally thinly bedded, dark, medium to fine grained; often v hard sandstones interbedded with siltstone and mudstones. Protoquartztites | Unusual | Field walls | Generally thinly bedded, dark, medium to fine grained; often v hard sandstones interbedded with siltstone and mudstones. Protoquartztites |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6137 | Widmerpool Formation | 1 | [NAME] | Very thick sequence of mudstones with thin sandstones and in a few places, muddy limestones; thin cherty limestones near base | GREY | Banded | mid and generally lighter greys; occasionally [NAME] | WIDMERPOOL FORMATION | CARBONIFEROUS | NOT ENTERED | Fine grained | Turbidite features | Thin flaggy beds; remarkably has the appearance of concrete paving flags when weathered  (and coincidentally, main usage is near one of the largest concrete paver works in the UK); detailed examination can distinguish this stone from concrete | Tendency to delaminate | Buildings -  v limited; field walls | Thin flaggy beds; remarkably has the appearance of concrete paving flags when weathered  (and coincidentally, main usage is near one of the largest concrete paver works in the UK); detailed examination can distinguish this stone from concrete |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6138 | [NAME] | 6137 | Widmerpool Formation | ? |  |  |  | WIDMERPOOL FORMATION | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6139 | Onecote Sandstones | 6137 | Onecote Sandstone | See Key Identification Features | BUFF | Uniform | mid  brown | ONECOTE SANDSTONES | CARBONIFEROUS | NOT ENTERED | Fine grained | Turbidite features | Thinly bedded -flaggy |  |  | Thinly bedded -flaggy |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area |  | 2012-05-16 10:20:35
6140 | Mixon Limestone Shales | 6137 | Widmerpool Formation | Limestones - Highly variable in bedding thickness, colour and grain size; high  clay content and cherty in places | GREY |  | lightens on weathering | WIDMERPOOL FORMATION | CARBONIFEROUS | NOT ENTERED | Fine grained | graded bedding | fien to medium grained, Mainly thin limestones within a shale sequence; sandy in places notably around Onecote, Mixon  and Butterton | unsure | Buildings -  v limited; field walls | fien to medium grained, Mainly thin limestones within a shale sequence; sandy in places notably around Onecote, Mixon  and Butterton |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6141 | Longstone Mudstones | 1 | Widmerpool Formation | ? |  |  |  | WIDMERPOOL FORMATION | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6142 | [NAME] | 1 |  | ? |  |  |  | CARBONIFEROUS LIMESTONE SUPERGROUP | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area |  | 2012-05-16 10:20:35
6143 | Hopedale Limestones | 6142 |  | Limestones -Highly variable in bedding thickness, colour and grain size; conglomeratic in parts | GREY | Banded |  | [NAME] | CARBONIFEROUS | NOT ENTERED | Fine grained | Variable bedding | Grey often banded limestone - very variable and difficult to distinguish with certainty from other local sources. In vernacular usage almost always sourced locally. | unsure | Buildings -  v limited; field walls | Grey often banded limestone - very variable and difficult to distinguish with certainty from other local sources. In vernacular usage almost always sourced locally. |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6144 | Hopedale Limestones, Reef Knoll | 6143 |  | Limestones -Highly variable in bedding thickness, colour and grain size; conglomeratic in parts | GREY | Banded |  | HOPEDALE LIMESTONES FORMATION (KNOLL-REEF) | CARBONIFEROUS | NOT ENTERED | Fine grained | Variable bedding | Grey often banded limestone - very variable and difficult to distinguish with certainty from other local sources. In vernacular usage almost always sourced locally. | unsure | Buildings -  v limited; field walls | Grey often banded limestone - very variable and difficult to distinguish with certainty from other local sources. In vernacular usage almost always sourced locally. |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6145 | Milldale Limestones | 6142 |  | Limestones - Highly variable in bedding thickness, colour and grain size; high  clay content and cherty in places, fine to medium; occasionally coarse; grain sizes often graded within individual beds; latter especially where fossiliferous | GREY | Banded | lighter grey | [NAME] | CARBONIFEROUS | NOT ENTERED | Fine grained | In reef areas, often little or no discernable bedding; in inter-reef areas thin to medium thickness bedding | Grey  limestone - very variable and often difficult to distinguish with certainty from other local sources. High fossil content be an identifier in places. In vernacular usage almost always sourced locally. Includes highly fossiliferous 'knoll reef material (extensive) qv  and  well bedded | In bedded types, may delaminate; | Buildings -  v limited; field walls | Grey  limestone - very variable and often difficult to distinguish with certainty from other local sources. High fossil content be an identifier in places. In vernacular usage almost always sourced locally. Includes highly fossiliferous 'knoll reef material (extensive) qv  and  well bedded |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6146 | Milldale Limestone Formation ([NAME]) | 6145 |  | ? |  |  |  | [NAME] (KNOLL-REEF) | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Sources Spreadsheet | 2012-05-16 10:20:35
6147 | Eyam Limestone | 6142 |  | Flaggy limestone |  | Banded | Mid grey | EYAM [NAME] | CARBONIFEROUS | NOT ENTERED | Very fine grained | Generally relatively thinly and regularly bedded but also exhibiting reefs (see separate entry) [NAME] limestone; often with chert bands | Well bedded dark limestone with high mudstone content, grain size is fine but also shelly | Break-up focuses upon mudstone laminae | Buildings ; field walls | Well bedded dark limestone with high mudstone content, grain size is fine but also shelly |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6148 | Cawdor Group | 6147 | Eyam Limestone | Flaggy limestone |  | Banded | Mid grey | EYAM [NAME] | CARBONIFEROUS | NOT ENTERED | Very fine grained | Generally relatively thinly and regularly bedded but also exhibiting reefs (see separate entry) [NAME] limestone; often with chert bands | Well bedded dark limestone with high mudstone content, grain size is fine but also shelly | Break-up focuses upon mudstone laminae | Buildings ; field walls | Well bedded dark limestone with high mudstone content, grain size is fine but also shelly |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6149 | [NAME] | 6147 |  | Highly fossiliferous limestone, most varieties capable of taking a high polish | GREY | Mottled | Natural colour is grey-brown (NB column G does not permit correct descriptions) | EYAM LIMESTONES [NAME] (KNOLL-REEF) | CARBONIFEROUS | NOT ENTERED | highly variable | Often imperceptible but variable bedding consistent with a reef structure.  Numerous micro-structures | prolific fossil content usually set in a darker/contrasting matrix but probably less pronounced contrast than for patch reef varieties.   Often quite wrongly described as Hopton Wood Stone (although it was sold as one of the products of the Hopton Wood Stone companies); bird's eye marble. Some varieties are black (usually restricted to a single bed) but have occasional specks (or even whole fossils) preserved as contrasting white crystalline calcite. In the case of Bird's Eye marble these white inclusions are usually small brachiopod shells | May develop lines of weakness around fossils | Decorative - see Locality of Use | prolific fossil content usually set in a darker/contrasting matrix but probably less pronounced contrast than for patch reef varieties.   Often quite wrongly described as Hopton Wood Stone (although it was sold as one of the products of the Hopton Wood Stone companies); bird's eye marble. Some varieties are black (usually restricted to a single bed) but have occasional specks (or even whole fossils) preserved as contrasting white crystalline calcite. In the case of Bird's Eye marble these white inclusions are usually small brachiopod shells |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6150 | Derby Dene | 6147 |  | Highly fossiliferous limestone, most varieties capable of taking a high polish | GREY | Mottled | Natural colour is grey-brown (NB column G does not permit correct descriptions) | EYAM LIMESTONES [NAME] (KNOLL-REEF) | CARBONIFEROUS | NOT ENTERED | highly variable | Often imperceptible but variable bedding consistent with a reef structure.  Numerous micro-structures | prolific fossil content usually set in a darker/contrasting matrix but probably less pronounced contrast than for patch reef varieties.   Often quite wrongly described as Hopton Wood Stone (although it was sold as one of the products of the Hopton Wood Stone companies); bird's eye marble. Some varieties are black (usually restricted to a single bed) but have occasional specks (or even whole fossils) preserved as contrasting white crystalline calcite. In the case of Bird's Eye marble these white inclusions are usually small brachiopod shells | May develop lines of weakness around fossils | Decorative - see Locality of Use | prolific fossil content usually set in a darker/contrasting matrix but probably less pronounced contrast than for patch reef varieties.   Often quite wrongly described as Hopton Wood Stone (although it was sold as one of the products of the Hopton Wood Stone companies); bird's eye marble. Some varieties are black (usually restricted to a single bed) but have occasional specks (or even whole fossils) preserved as contrasting white crystalline calcite. In the case of Bird's Eye marble these white inclusions are usually small brachiopod shells |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6151 | Bird's Eye Marble | 6147 |  | Highly fossiliferous limestone, most varieties capable of taking a high polish | GREY | Mottled | Natural colour is grey-brown (NB column G does not permit correct descriptions) | EYAM LIMESTONES [NAME] (KNOLL-REEF) | CARBONIFEROUS | NOT ENTERED | highly variable | Often imperceptible but variable bedding consistent with a reef structure.  Numerous micro-structures | prolific fossil content usually set in a darker/contrasting matrix but probably less pronounced contrast than for patch reef varieties.   Often quite wrongly described as Hopton Wood Stone (although it was sold as one of the products of the Hopton Wood Stone companies); bird's eye marble. Some varieties are black (usually restricted to a single bed) but have occasional specks (or even whole fossils) preserved as contrasting white crystalline calcite. In the case of Bird's Eye marble these white inclusions are usually small brachiopod shells | May develop lines of weakness around fossils | Decorative - see Locality of Use | prolific fossil content usually set in a darker/contrasting matrix but probably less pronounced contrast than for patch reef varieties.   Often quite wrongly described as Hopton Wood Stone (although it was sold as one of the products of the Hopton Wood Stone companies); bird's eye marble. Some varieties are black (usually restricted to a single bed) but have occasional specks (or even whole fossils) preserved as contrasting white crystalline calcite. In the case of Bird's Eye marble these white inclusions are usually small brachiopod shells |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6152 | Black Marble | 6147 |  | ? |  |  |  | EYAM [NAME] | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Sources Spreadsheet | 2012-05-16 10:20:35
6153 | Bird's Eye Marble | 6147 |  | ? |  |  |  | EYAM [NAME] | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Sources Spreadsheet | 2012-05-16 10:20:35
6154 | [NAME] | 6142 |  | Pale/mid grey thickly bedded or (particularly in the E)  dark grey thin bedded limestones, highly fossiliferous in many places; chert is relatively common | GREY | Banded | Mid/light grey | MONSAL DALE LIMESTONE FORMATION | CARBONIFEROUS | NOT ENTERED | Medium grained | A wide range of carbonate sedimentary structures | Typically  a shelly usually mid-grey limestone, grain size is medium to coarse in lighter varieties | No particular failure features | Buildings ; field walls | Typically  a shelly usually mid-grey limestone, grain size is medium to coarse in lighter varieties |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6155 | New Hopton Wood Stone | 6154 | [NAME] | Attempted to sell their stone as Hopton Wood stone - challenged in the High Court - compromise judgement in 1910; taken over by Hopton Wood S F in 1924 |  |  |  | MONSAL DALE LIMESTONE FORMATION | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC), Sources spreadsheet | 2012-05-16 10:20:35
6156 | Matlock Limestones | 6154 | [NAME] | Pale/mid grey thickly bedded or (particularly in the E)  dark grey thin bedded limestones , highly fossiliferous in many places; chert is relatively common | GREY | Banded | Mid/light grey | MONSAL DALE LIMESTONE FORMATION | CARBONIFEROUS | NOT ENTERED | Medium grained | A wide range of carbonate sedimentary structures | Typically  a shelly usually mid-grey limestone, grain size is medium to coarse in lighter varieties | No particular failure features | Buildings ; field walls | Typically  a shelly usually mid-grey limestone, grain size is medium to coarse in lighter varieties |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6157 | Toadstone | 1 | Matlock Lava | amygdaloidal basalt | BLACK | Mottled | [NAME] but frequently moss covered | PARENT DATA NOT YET ENTERED [HIERARCHY CODE] | CARBONIFEROUS | NOT ENTERED | Fine grained | [NAME] flow characteristics | black [NAME] generally  full of bubble shaped voids (up to 1cm across) some of which may be filled with crystalline material eg calcite or zeolites | May break down to a clay | Field walls - extremely rarely | black [NAME] generally  full of bubble shaped voids (up to 1cm across) some of which may be filled with crystalline material eg calcite or zeolites |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6158 | Toadstone | 6157 | Upper Matlock Lava | amygdaloidal basalt | BLACK | Mottled | [NAME] but frequently moss covered | UPPER MATLOCK LAVA MEMBER | CARBONIFEROUS | NOT ENTERED | Fine grained | [NAME] flow characteristics | black [NAME] generally  full of bubble shaped voids (up to 1cm across) some of which may be filled with crystalline material eg calcite or zeolites | May break down to a clay | Field walls - extremely rarely | black [NAME] generally  full of bubble shaped voids (up to 1cm across) some of which may be filled with crystalline material eg calcite or zeolites |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6159 | Toadstone | 6157 | Lower Matlock Lava | amygdaloidal basalt | BLACK | Mottled | [NAME] but frequently moss covered | LOWER MATLOCK LAVA MEMBER | CARBONIFEROUS | NOT ENTERED | Fine grained | [NAME] flow characteristics | black [NAME] generally  full of bubble shaped voids (up to 1cm across) some of which may be filled with crystalline material eg calcite or zeolites | May break down to a clay | Field walls - extremely rarely | black [NAME] generally  full of bubble shaped voids (up to 1cm across) some of which may be filled with crystalline material eg calcite or zeolites |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6160 | [NAME] | 6142 |  | A notably light coloured often shelly limestone; Limestone. Often consistently +98% calcium carbonate (calcite) | BUFF | Uniform | Light grey | BEE LOW [NAME] | CARBONIFEROUS | NOT ENTERED | highly variable | Typically massively bedded up to 10 metres, evenly jointed limestone Wide range of carbonate structures including current and graded bedding, reefal mats,sparry calcite. | availability in very thick beds, frequently very light colour, weathering to off-white but can vary to [NAME]; an exceptionally a low iron content is common | caution required where stone is derived from an aggregates quarry on account of micro fractures caused by pressure shock. |  | availability in very thick beds, frequently very light colour, weathering to off-white but can vary to [NAME]; an exceptionally a low iron content is common |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6161 | [NAME], [NAME] | 6160 |  | Limestone - highly fossiliferous with crinoids and corals evident | GREY | Mottled | Light/mid grey | BEE LOW [NAME] (APRON-REEF) | CARBONIFEROUS | NOT ENTERED | highly variable | Often imperceptible but variable bedding consistent with a reef structure.  Numerous micro-structures | prolific fossil content | Not known | Farm buildings and field walls -  rarely | prolific fossil content |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6162 | [NAME], dolomitised | 6160 |  | ? |  |  |  | BEE LOW [NAME] | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6163 | Via [NAME] | 6160 |  | A notably light coloured often shelly limestone; Limestone. Often consistently +98% calcium carbonate (calcite) | BUFF | Uniform | Light grey | BEE LOW [NAME] | CARBONIFEROUS | NOT ENTERED | highly variable | Typically massively bedded up to 10 metres, evenly jointed limestone Wide range of carbonate structures including current and graded bedding, reefal mats,sparry calcite. | availability in very thick beds, frequently very light colour, weathering to off-white but can vary to [NAME]; an exceptionally a low iron content is common | caution required where stone is derived from an aggregates quarry on account of micro fractures caused by pressure shock. | Farm buildings and field walls -  rarely | availability in very thick beds, frequently very light colour, weathering to off-white but can vary to [NAME]; an exceptionally a low iron content is common |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6164 | Hopton Wood Stone | 6160 | [NAME] | Consistent even textured. capable of taking a high polish.  By far the largest number of examples have used 'light' [NAME] but a dark variety (mid grey/dove) was available from the late C19th  until possibly c1939. Fine grained, light coloured limestone made up of comminuted shell debris and re-crystallised calcite |  | Uniform | Light grey           [NB the stone famed and distinguished when fresh or polished by its consistent CREAM colour but cream is not an acceptable option in the drop down boxes] | BEE LOW [NAME] | CARBONIFEROUS | NOT ENTERED | Fine | Rarely evident but current bedding (seen in shell grain patterns) and sutures may be present | consistent cream colour and uniform grain size | Highly reliable but surfaces tend to weather to a slightly roughened profile resorting from differential erosion between matrix and more resistant shell debris (which stands proud of the general surface). Occasional hairline fractures may be present but o | Decorative - see Locality of Use | consistent cream colour and uniform grain size |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6165 | Hopton Wood Marble | 6160 | Hopton Wood Stone | Consistent even textured. capable of taking a high polish.  By far the largest number of examples have used 'light' [NAME] but a dark variety (mid grey/dove) was available from the late C19th  until possibly c1939. Fine grained, light coloured limestone made up of comminuted shell debris and re-crystallised calcite |  | Uniform | Light grey           [NB the stone famed and distinguished when fresh or polished by its consistent CREAM colour but cream is not an acceptable option in the drop down boxes] | BEE LOW [NAME] | CARBONIFEROUS | NOT ENTERED | Fine | Rarely evident but current bedding (seen in shell grain patterns) and sutures may be present | consistent cream colour and uniform grain size | Highly reliable but surfaces tend to weather to a slightly roughened profile resorting from differential erosion between matrix and more resistant shell debris (which stands proud of the general surface). Occasional hairline fractures may be present but o | Decorative - see Locality of Use | consistent cream colour and uniform grain size |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6166 | Woo [NAME] | 6142 |  | Usually massively bedded limestones with minor dolomitisation apart from in the type  area just east of Buxton where dolomitisation predominates and the beds tend to be darker. However it is compact (not having the more usual honeycombed appearance of dolomite) | GREY | Banded | mid grey | WOO DALE LIMESTONE FORMATION | CARBONIFEROUS | NOT ENTERED | Medium grained | Normal bedding | Grain size is medium but devoid of texture where dolomitised | No particular failure features | Farm buildings and field walls -  rarely | Grain size is medium but devoid of texture where dolomitised |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6167 | Dunstone | 6142 | Carboniferous Dolomites | Dolomite or magnesium-rich limestone; saccharoidal (sugar-like) texture in detail and honeycomb texture as a whole | BUFF | Mottled | buff/grey | PEAK LIMESTONE GROUP | CARBONIFEROUS | NOT ENTERED | Fine grained | Bedding (where noticeable) is often widely spaced | [NAME] colour, sugary sandy grains, numerous rounded voids (c up to 1cm diam). Usually lacks fossils. Can be distinguished from tufa as voids if the latter are more angular and spaces between voids narrower than for dolomite | Unusual  - generaly little weahering - surface becomes slightly more 'sugary' and surfaces become rounded betweeen voids | Farm buildings  -  rarely and field walls | [NAME] colour, sugary sandy grains, numerous rounded voids (c up to 1cm diam). Usually lacks fossils. Can be distinguished from tufa as voids if the latter are more angular and spaces between voids narrower than for dolomite |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6168 | [NAME] | 1 |  | ? |  |  |  | CARBONIFEROUS LIMESTONE SUPERGROUP | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area |  | 2012-05-16 10:20:35
6169 | Hopedale Limestones | 6168 |  | Limestones -Highly variable in bedding thickness, colour and grain size; conglomeratic in parts | GREY | Banded |  | [NAME] | CARBONIFEROUS | NOT ENTERED | Fine grained | Variable bedding | Grey often banded limestone - very variable and difficult to distinguish with certainty from other local sources. In vernacular usage almost always sourced locally. | unsure | Buildings -  v limited; field walls | Grey often banded limestone - very variable and difficult to distinguish with certainty from other local sources. In vernacular usage almost always sourced locally. |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6170 | Hopedale Limestones, Reef Knoll | 6169 |  | Limestones -Highly variable in bedding thickness, colour and grain size; conglomeratic in parts | GREY | Banded |  | HOPEDALE LIMESTONES FORMATION (KNOLL-REEF) | CARBONIFEROUS | NOT ENTERED | Fine grained | Variable bedding | Grey often banded limestone - very variable and difficult to distinguish with certainty from other local sources. In vernacular usage almost always sourced locally. | unsure | Buildings -  v limited; field walls | Grey often banded limestone - very variable and difficult to distinguish with certainty from other local sources. In vernacular usage almost always sourced locally. |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6171 | [NAME] | 6168 |  | Limestones - Highly variable in bedding thickness, colour and grain size; high  clay content and cherty in places.  fine to medium; occasionally coarse; grain sizes often graded within individual beds. | GREY | Banded | lighter grey | [NAME] | CARBONIFEROUS | NOT ENTERED | Fine grained | Variable bedding | Grey often banded limestone - very variable and difficult to distinguish with certainty from other local sources. The presence of chert may be an identifier. In vernacular usage almost always sourced locally. | Tendency to delaminate | Buildings -  v limited; field walls | Grey often banded limestone - very variable and difficult to distinguish with certainty from other local sources. The presence of chert may be an identifier. In vernacular usage almost always sourced locally. |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6172 | Mixon Limestone | 6171 | [NAME] | Limestones - Highly variable in bedding thickness, colour and grain size; high  clay content and cherty in places.  fine to medium; occasionally coarse; grain sizes often graded within individual beds. | GREY | Banded | lighter grey | [NAME] | CARBONIFEROUS | NOT ENTERED | Fine grained | Variable bedding | Grey often banded limestone - very variable and difficult to distinguish with certainty from other local sources. The presence of chert may be an identifier. In vernacular usage almost always sourced locally. | Tendency to delaminate | Buildings -  v limited; field walls | Grey often banded limestone - very variable and difficult to distinguish with certainty from other local sources. The presence of chert may be an identifier. In vernacular usage almost always sourced locally. |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6173 | Apestor [NAME] | 6171 | [NAME] | Limestones - Highly variable in bedding thickness, colour and grain size; high  clay content and cherty in places, fine to medium; occasionally coarse; grain sizes often graded within individual beds | GREY | Banded | lighter grey | [NAME] | CARBONIFEROUS | NOT ENTERED | Fine grained | Variable bedding | Grey often banded limestone - very variable and difficult to distinguish with certainty from other local sources. The presence of chert may be an identifier. In vernacular usage almost always sourced locally. | Tendency to delaminate | Buildings -  v limited; field walls | Grey often banded limestone - very variable and difficult to distinguish with certainty from other local sources. The presence of chert may be an identifier. In vernacular usage almost always sourced locally. |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6174 | Milldale Limestones | 6168 |  | Limestones - Highly variable in bedding thickness, colour and grain size; high  clay content and cherty in places, fine to medium; occasionally coarse; grain sizes often graded within individual beds; latter especially where fossiliferous | GREY | Banded | lighter grey | [NAME] | CARBONIFEROUS | NOT ENTERED | Fine grained | In reef areas, often little or no discernable bedding; in inter-reef areas thin to medium thickness bedding | Grey  limestone - very variable and often difficult to distinguish with certainty from other local sources. High fossil content be an identifier in places. In vernacular usage almost always sourced locally. Includes highly fossiliferous 'knoll reef material (extensive) qv  and  well bedded | In bedded types, may delaminate; | Buildings -  v limited; field walls | Grey  limestone - very variable and often difficult to distinguish with certainty from other local sources. High fossil content be an identifier in places. In vernacular usage almost always sourced locally. Includes highly fossiliferous 'knoll reef material (extensive) qv  and  well bedded |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6175 | Milldale Limestone Formation ([NAME]) | 6174 |  | ? |  |  |  | [NAME] (KNOLL-REEF) | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | Sources Spreadsheet | 2012-05-16 10:20:35
6176 | Eyam Limestone | 6168 |  | Flaggy limestone |  | Banded | Mid grey | EYAM [NAME] | CARBONIFEROUS | NOT ENTERED | Very fine grained | Generally relatively thinly and regularly bedded but also exhibiting reefs (see separate entry) [NAME] limestone; often with chert bands | Well bedded dark limestone with high mudstone content, grain size is fine but also shelly | Break-up focuses upon mudstone laminae | Buildings ; field walls | Well bedded dark limestone with high mudstone content, grain size is fine but also shelly |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6177 | Cawdor Group | 6176 | Eyam Limestone | Flaggy limestone |  | Banded | Mid grey | EYAM [NAME] | CARBONIFEROUS | NOT ENTERED | Very fine grained | Generally relatively thinly and regularly bedded but also exhibiting reefs (see separate entry) [NAME] limestone; often with chert bands | Well bedded dark limestone with high mudstone content, grain size is fine but also shelly | Break-up focuses upon mudstone laminae | Buildings ; field walls | Well bedded dark limestone with high mudstone content, grain size is fine but also shelly |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6178 | Ashford Beds | 6176 | Eyam Limestone | Flaggy limestone |  | Banded | Mid grey | EYAM [NAME] | CARBONIFEROUS | NOT ENTERED | Very fine grained | Generally relatively thinly and regularly bedded but also exhibiting reefs (see separate entry) [NAME] limestone; often with chert bands | Well bedded dark limestone with high mudstone content, grain size is fine but also shelly | Break-up focuses upon mudstone laminae | Buildings ; field walls | Well bedded dark limestone with high mudstone content, grain size is fine but also shelly |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6179 | [NAME] Marble | 6176 |  | Highly fossiliferous limestone, some varieties capable of taking a high polish | GREY | Mottled | Natural colour is grey-brown (NB column G does not permit correct descriptions) | EYAM LIMESTONES [NAME] (FLAT-REEF) | CARBONIFEROUS | NOT ENTERED | highly variable | Often imperceptible but variable bedding consistent with a reef structure.  Numerous micro-structures | prolific fossil content usually set in a darker/contrasting matrix | suturing relatively common as a weakness,  also may tend externally to exfoliate around individual fossils. | Decorative - see Locality of Use | prolific fossil content usually set in a darker/contrasting matrix |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6180 | Ricklow Marble | 6176 |  | Highly fossiliferous limestone, some varieties capable of taking a high polish | GREY | Mottled | Natural colour is grey-brown (NB column G does not permit correct descriptions) | EYAM LIMESTONES [NAME] (FLAT-REEF) | CARBONIFEROUS | NOT ENTERED | highly variable | Often imperceptible but variable bedding consistent with a reef structure.  Numerous micro-structures | prolific fossil content usually set in a darker/contrasting matrix | suturing relatively common as a weakness,  also may tend externally to exfoliate around individual fossils. | Decorative - see Locality of Use | prolific fossil content usually set in a darker/contrasting matrix |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6181 | [NAME] | 6176 |  | Highly fossiliferous limestone, most varieties capable of taking a high polish | GREY | Mottled | Natural colour is grey-brown (NB column G does not permit correct descriptions) | EYAM LIMESTONES [NAME] (KNOLL-REEF) | CARBONIFEROUS | NOT ENTERED | highly variable | Often imperceptible but variable bedding consistent with a reef structure.  Numerous micro-structures | prolific fossil content usually set in a darker/contrasting matrix but probably less pronounced contrast than for patch reef varieties.   Often quite wrongly described as Hopton Wood Stone (although it was sold as one of the products of the Hopton Wood Stone companies); bird's eye marble. Some varieties are black (usually restricted to a single bed) but have occasional specks (or even whole fossils) preserved as contrasting white crystalline calcite. In the case of Bird's Eye marble these white inclusions are usually small brachiopod shells | May develop lines of weakness around fossils | Decorative - see Locality of Use | prolific fossil content usually set in a darker/contrasting matrix but probably less pronounced contrast than for patch reef varieties.   Often quite wrongly described as Hopton Wood Stone (although it was sold as one of the products of the Hopton Wood Stone companies); bird's eye marble. Some varieties are black (usually restricted to a single bed) but have occasional specks (or even whole fossils) preserved as contrasting white crystalline calcite. In the case of Bird's Eye marble these white inclusions are usually small brachiopod shells |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6182 | Derby Dene | 6176 |  | Highly fossiliferous limestone, most varieties capable of taking a high polish | GREY | Mottled | Natural colour is grey-brown (NB column G does not permit correct descriptions) | EYAM LIMESTONES [NAME] (KNOLL-REEF) | CARBONIFEROUS | NOT ENTERED | highly variable | Often imperceptible but variable bedding consistent with a reef structure.  Numerous micro-structures | prolific fossil content usually set in a darker/contrasting matrix but probably less pronounced contrast than for patch reef varieties.   Often quite wrongly described as Hopton Wood Stone (although it was sold as one of the products of the Hopton Wood Stone companies); bird's eye marble. Some varieties are black (usually restricted to a single bed) but have occasional specks (or even whole fossils) preserved as contrasting white crystalline calcite. In the case of Bird's Eye marble these white inclusions are usually small brachiopod shells | May develop lines of weakness around fossils | Decorative - see Locality of Use | prolific fossil content usually set in a darker/contrasting matrix but probably less pronounced contrast than for patch reef varieties.   Often quite wrongly described as Hopton Wood Stone (although it was sold as one of the products of the Hopton Wood Stone companies); bird's eye marble. Some varieties are black (usually restricted to a single bed) but have occasional specks (or even whole fossils) preserved as contrasting white crystalline calcite. In the case of Bird's Eye marble these white inclusions are usually small brachiopod shells |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6183 | Bird's Eye Marble | 6176 |  | Highly fossiliferous limestone, most varieties capable of taking a high polish | GREY | Mottled | Natural colour is grey-brown (NB column G does not permit correct descriptions) | EYAM LIMESTONES [NAME] (KNOLL-REEF) | CARBONIFEROUS | NOT ENTERED | highly variable | Often imperceptible but variable bedding consistent with a reef structure.  Numerous micro-structures | prolific fossil content usually set in a darker/contrasting matrix but probably less pronounced contrast than for patch reef varieties.   Often quite wrongly described as Hopton Wood Stone (although it was sold as one of the products of the Hopton Wood Stone companies); bird's eye marble. Some varieties are black (usually restricted to a single bed) but have occasional specks (or even whole fossils) preserved as contrasting white crystalline calcite. In the case of Bird's Eye marble these white inclusions are usually small brachiopod shells | May develop lines of weakness around fossils | Decorative - see Locality of Use | prolific fossil content usually set in a darker/contrasting matrix but probably less pronounced contrast than for patch reef varieties.   Often quite wrongly described as Hopton Wood Stone (although it was sold as one of the products of the Hopton Wood Stone companies); bird's eye marble. Some varieties are black (usually restricted to a single bed) but have occasional specks (or even whole fossils) preserved as contrasting white crystalline calcite. In the case of Bird's Eye marble these white inclusions are usually small brachiopod shells |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6184 | Black Marble | 6176 |  | ? |  |  |  | EYAM [NAME] | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | Sources Spreadsheet | 2012-05-16 10:20:35
6185 | [NAME] | 6168 |  | Pale/mid grey thickly bedded or (particularly in the E)  dark grey thin bedded limestones, highly fossiliferous in many places; chert is relatively common | GREY | Banded | Mid/light grey | MONSAL DALE LIMESTONE FORMATION | CARBONIFEROUS | NOT ENTERED | Medium grained | A wide range of carbonate sedimentary structures | Typically  a shelly usually mid-grey limestone, grain size is medium to coarse in lighter varieties | No particular failure features | Buildings ; field walls | Typically  a shelly usually mid-grey limestone, grain size is medium to coarse in lighter varieties |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6186 | Matlock Limestones | 6185 | [NAME] | Pale/mid grey thickly bedded or (particularly in the E)  dark grey thin bedded limestones , highly fossiliferous in many places; chert is relatively common | GREY | Banded | Mid/light grey | MONSAL DALE LIMESTONE FORMATION | CARBONIFEROUS | NOT ENTERED | Medium grained | A wide range of carbonate sedimentary structures | Typically  a shelly usually mid-grey limestone, grain size is medium to coarse in lighter varieties | No particular failure features | Buildings ; field walls | Typically  a shelly usually mid-grey limestone, grain size is medium to coarse in lighter varieties |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6187 | [NAME] | 6185 | [NAME] | Pale/mid grey thickly bedded or (particularly in the E)  dark grey thin bedded limestones , highly fossiliferous in many places; chert is relatively common | GREY | Banded | Mid/light grey | MONSAL DALE LIMESTONE FORMATION | CARBONIFEROUS | NOT ENTERED | Medium grained | A wide range of carbonate sedimentary structures | Typically  a shelly usually mid-grey limestone, grain size is medium to coarse in lighter varieties | No particular failure features | Buildings ; field walls | Typically  a shelly usually mid-grey limestone, grain size is medium to coarse in lighter varieties |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6188 | Wye Valley Limestones | 6185 | [NAME] | Pale/mid grey thickly bedded or (particularly in the E)  dark grey thin bedded limestones, highly fossiliferous in many places; chert is relatively common | GREY | Banded | Mid/light grey | MONSAL DALE LIMESTONE FORMATION | CARBONIFEROUS | NOT ENTERED | Medium grained | A wide range of carbonate sedimentary structures | Typically  a shelly usually mid-grey limestone, grain size is medium to coarse in lighter varieties | No particular failure features | Buildings ; field walls | Typically  a shelly usually mid-grey limestone, grain size is medium to coarse in lighter varieties |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6189 | White Peak Limestone | 6185 | [NAME] | Pale/mid grey thickly bedded or (particularly in the E)  dark grey thin bedded limestones, highly fossiliferous in many places; chert is relatively common | GREY | Banded | Mid/light grey | MONSAL DALE LIMESTONE FORMATION | CARBONIFEROUS | LIMESTONE, CHERTY | medium to coarse in lighter varieties | A wide range of carbonate sedimentary structures | Typically  a shelly usually mid-grey limestone | No particular failure features | Buildings ; field walls | Typically  a shelly usually mid-grey limestone |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6190 | [NAME] | 6185 | [NAME] | Argillaceous thin bedded often micritic  limestones; occasionally bituminous, grain size is generally fine except shelly bands; black micritic varieties - exceptionally fine |  | Banded | Grey/brown | MONSAL DALE [NAME] (DARK LITHOFACIES) | CARBONIFEROUS | NOT ENTERED | Fine grained | A wide range of finely defined carbonate sedimentary structures | Thin bedding, fine grained  dark grey limestones, occasionally black (highly prized). When broken, may emit a smell of bitumen. Some varieties have occasional specks (or even whole fossils) preserved as contrasting white crystalline calcite. In the case of Bird's Eye marble these white inclusions are usually small brachiopod shells. | Separation along mudstone planes; unusually, occasionally total disintegration | Buildings ; field walls | Thin bedding, fine grained  dark grey limestones, occasionally black (highly prized). When broken, may emit a smell of bitumen. Some varieties have occasional specks (or even whole fossils) preserved as contrasting white crystalline calcite. In the case of Bird's Eye marble these white inclusions are usually small brachiopod shells. |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6191 | Rosewood Marble | 6185 |  | Argillaceous thin bedded often micritic  limestones; occasionally bituminous, grain size is generally fine except shelly bands; black micritic varieties - exceptionally fine |  | Banded | Grey/brown | MONSAL DALE [NAME] (DARK LITHOFACIES) | CARBONIFEROUS | NOT ENTERED | Fine grained | A wide range of finely defined carbonate sedimentary structures | Thin bedding, fine grained  dark grey limestones, occasionally black (highly prized).  When broken, may emit a smell of bitumen. Some varieties have occasional specks (or even whole fossils) preserved as contrasting white crystalline calcite. In the case of Bird's Eye marble these white inclusions are usually small brachiopod shells | Separation along mudstone planes; unusually, occasionally total disintegration | Decorative - see Locality of Use | Thin bedding, fine grained  dark grey limestones, occasionally black (highly prized).  When broken, may emit a smell of bitumen. Some varieties have occasional specks (or even whole fossils) preserved as contrasting white crystalline calcite. In the case of Bird's Eye marble these white inclusions are usually small brachiopod shells |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6192 | Bird's Eye Marble | 6185 |  | Argillaceous thin bedded often micritic  limestones; occasionally bituminous, grain size is generally fine except shelly bands; black micritic varieties - exceptionally fine |  | Banded | Grey/brown | MONSAL DALE [NAME] (DARK LITHOFACIES) | CARBONIFEROUS | NOT ENTERED | Fine grained | A wide range of finely defined carbonate sedimentary structures | Thin bedding, fine grained  dark grey limestones, occasionally black (highly prized).  When broken, may emit a smell of bitumen. Some varieties have occasional specks (or even whole fossils) preserved as contrasting white crystalline calcite. In the case of Bird's Eye marble these white inclusions are usually small brachiopod shells | Separation along mudstone planes; unusually, occasionally total disintegration | Decorative - see Locality of Use | Thin bedding, fine grained  dark grey limestones, occasionally black (highly prized).  When broken, may emit a smell of bitumen. Some varieties have occasional specks (or even whole fossils) preserved as contrasting white crystalline calcite. In the case of Bird's Eye marble these white inclusions are usually small brachiopod shells |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6193 | Ashford Black Marble | 6185 | Dirtlow Rake | Argillaceous thin bedded often micritic  limestones; occasionally bituminous, grain size is generally fine except shelly bands; black micritic varieties - exceptionally fine |  | Banded | Grey/brown | MONSAL DALE [NAME] (DARK LITHOFACIES) | CARBONIFEROUS | NOT ENTERED | Fine grained | A wide range of finely defined carbonate sedimentary structures | Thin bedding, fine grained  dark grey limestones, occasionally black (highly prized).  When broken, may emit a smell of bitumen. Some varieties have occasional specks (or even whole fossils) preserved as contrasting white crystalline calcite. In the case of Bird's Eye marble these white inclusions are usually small brachiopod shells | Separation along mudstone planes; unusually, occasionally total disintegration | Decorative - see Locality of Use | Thin bedding, fine grained  dark grey limestones, occasionally black (highly prized).  When broken, may emit a smell of bitumen. Some varieties have occasional specks (or even whole fossils) preserved as contrasting white crystalline calcite. In the case of Bird's Eye marble these white inclusions are usually small brachiopod shells |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6194 | Toadstone | 6168 | Matlock Lava | amygdaloidal basalt | BLACK | Mottled | [NAME] but frequently moss covered | PARENT DATA NOT YET ENTERED [HIERARCHY CODE] | CARBONIFEROUS | NOT ENTERED | Fine grained | [NAME] flow characteristics | black [NAME] generally  full of bubble shaped voids (up to 1cm across) some of which may be filled with crystalline material eg calcite or zeolites | May break down to a clay | Field walls - extremely rarely | black [NAME] generally  full of bubble shaped voids (up to 1cm across) some of which may be filled with crystalline material eg calcite or zeolites |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6195 | Toadstone | 6194 | Upper Matlock Lava | amygdaloidal basalt | BLACK | Mottled | [NAME] but frequently moss covered | UPPER MATLOCK LAVA MEMBER | CARBONIFEROUS | NOT ENTERED | Fine grained | [NAME] flow characteristics | black [NAME] generally  full of bubble shaped voids (up to 1cm across) some of which may be filled with crystalline material eg calcite or zeolites | May break down to a clay | Field walls - extremely rarely | black [NAME] generally  full of bubble shaped voids (up to 1cm across) some of which may be filled with crystalline material eg calcite or zeolites |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6196 | Toadstone | 6194 | Lower Matlock Lava | amygdaloidal basalt | BLACK | Mottled | [NAME] but frequently moss covered | LOWER MATLOCK LAVA MEMBER | CARBONIFEROUS | NOT ENTERED | Fine grained | [NAME] flow characteristics | black [NAME] generally  full of bubble shaped voids (up to 1cm across) some of which may be filled with crystalline material eg calcite or zeolites | May break down to a clay | Field walls - extremely rarely | black [NAME] generally  full of bubble shaped voids (up to 1cm across) some of which may be filled with crystalline material eg calcite or zeolites |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6197 | [NAME] | 6168 |  | A notably light coloured often shelly limestone; Limestone. Often consistently +98% calcium carbonate (calcite) | BUFF | Uniform | Light grey | BEE LOW [NAME] | CARBONIFEROUS | NOT ENTERED | highly variable | Typically massively bedded up to 10 metres, evenly jointed limestone Wide range of carbonate structures including current and graded bedding, reefal mats,sparry calcite. | availability in very thick beds, frequently very light colour, weathering to off-white but can vary to [NAME]; an exceptionally a low iron content is common | caution required where stone is derived from an aggregates quarry on account of micro fractures caused by pressure shock. |  | availability in very thick beds, frequently very light colour, weathering to off-white but can vary to [NAME]; an exceptionally a low iron content is common |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6198 | [NAME], [NAME] | 6197 |  | Limestone - highly fossiliferous with crinoids and corals evident | GREY | Mottled | Light/mid grey | BEE LOW [NAME] (APRON-REEF) | CARBONIFEROUS | NOT ENTERED | highly variable | Often imperceptible but variable bedding consistent with a reef structure.  Numerous micro-structures | prolific fossil content | Not known | Farm buildings and field walls -  rarely | prolific fossil content |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6199 | [NAME], dolomitised | 6197 |  | ? |  |  |  | BEE LOW [NAME] | CARBONIFEROUS | NOT ENTERED |  |  |  |  |  |  |  | DGCA | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6200 | Chee [NAME] | 6197 |  | A notably light coloured often shelly limestone; Limestone. Often consistently +98% calcium carbonate (calcite) | BUFF | Uniform | Light grey | BEE LOW [NAME] | CARBONIFEROUS | NOT ENTERED | highly variable | Typically massively bedded up to 10 metres, evenly jointed limestone Wide range of carbonate structures including current and graded bedding, reefal mats,sparry calcite. | availability in very thick beds, frequently very light colour, weathering to off-white but can vary to [NAME]; an exceptionally a low iron content is common | caution required where stone is derived from an aggregates quarry on account of micro fractures caused by pressure shock. | Farm buildings and field walls | availability in very thick beds, frequently very light colour, weathering to off-white but can vary to [NAME]; an exceptionally a low iron content is common |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6201 | Via [NAME] | 6197 |  | A notably light coloured often shelly limestone; Limestone. Often consistently +98% calcium carbonate (calcite) | BUFF | Uniform | Light grey | BEE LOW [NAME] | CARBONIFEROUS | NOT ENTERED | highly variable | Typically massively bedded up to 10 metres, evenly jointed limestone Wide range of carbonate structures including current and graded bedding, reefal mats,sparry calcite. | availability in very thick beds, frequently very light colour, weathering to off-white but can vary to [NAME]; an exceptionally a low iron content is common | caution required where stone is derived from an aggregates quarry on account of micro fractures caused by pressure shock. | Farm buildings and field walls -  rarely | availability in very thick beds, frequently very light colour, weathering to off-white but can vary to [NAME]; an exceptionally a low iron content is common |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6202 | Millers [NAME] | 6197 |  | A notably light coloured often shelly limestone; Limestone. Often consistently +98% calcium carbonate (calcite) | BUFF | Uniform | Light grey | BEE LOW [NAME] | CARBONIFEROUS | NOT ENTERED | highly variable | Typically massively bedded up to 10 metres, evenly jointed limestone Wide range of carbonate structures including current and graded bedding, reefal mats,sparry calcite. | availability in very thick beds, frequently very light colour, weathering to off-white but can vary to [NAME]; an exceptionally a low iron content is common | caution required where stone is derived from an aggregates quarry on account of micro fractures caused by pressure shock. | Farm buildings; field walls | availability in very thick beds, frequently very light colour, weathering to off-white but can vary to [NAME]; an exceptionally a low iron content is common |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6203 | Woo [NAME] | 6168 |  | Usually massively bedded limestones with minor dolomitisation apart from in the type  area just east of Buxton where dolomitisation predominates and the beds tend to be darker. However it is compact (not having the more usual honeycombed appearance of dolomite) | GREY | Banded | mid grey | WOO DALE LIMESTONE FORMATION | CARBONIFEROUS | NOT ENTERED | Medium grained | Normal bedding | Grain size is medium but devoid of texture where dolomitised | No particular failure features | Farm buildings and field walls -  rarely | Grain size is medium but devoid of texture where dolomitised |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6204 | Dunstone | 6168 | Carboniferous Dolomites | Dolomite or magnesium-rich limestone; saccharoidal (sugar-like) texture in detail and honeycomb texture as a whole | BUFF | Mottled | buff/grey | PEAK LIMESTONE GROUP | CARBONIFEROUS | NOT ENTERED | Fine grained | Bedding (where noticeable) is often widely spaced | [NAME] colour, sugary sandy grains, numerous rounded voids (c up to 1cm diam). Usually lacks fossils. Can be distinguished from tufa as voids if the latter are more angular and spaces between voids narrower than for dolomite | Unusual  - generaly little weahering - surface becomes slightly more 'sugary' and surfaces become rounded betweeen voids | Farm buildings  -  rarely and field walls | [NAME] colour, sugary sandy grains, numerous rounded voids (c up to 1cm diam). Usually lacks fossils. Can be distinguished from tufa as voids if the latter are more angular and spaces between voids narrower than for dolomite |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6205 | Cawk | 1 | Cauk, Calk | Mineral vein and cave deposits - Baryte. [NAME]/opaque; colours often definitive | BUFF | Veined | generally n/a; tendency to dull | PARENT UNIT NOT YET ASSIGNED OR CONFIRMED [HIERARCHY CODE] | CARBONIFEROUS | NOT ENTERED | Medium grained | Sometimes 'flow banding' particularly in cave deposits | [NAME]/opaque; colours often definitive, grain size is variable from amorphous appearance to crystals 10cm or more in length | Not v good in exterior uses but does often feature in rockeries (esp calcite) | limited esp in C19th for interior decoration - eg inlay work,   Almost all  pieces are relatively small | [NAME]/opaque; colours often definitive, grain size is variable from amorphous appearance to crystals 10cm or more in length |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6206 | Oakstone | 6205 | Cawk | Mineral vein and cave deposits - Baryte. [NAME]/opaque; colours often definitive | BUFF | Veined | generally n/a; tendency to dull | PARENT UNIT NOT YET ASSIGNED OR CONFIRMED [HIERARCHY CODE] | CARBONIFEROUS | NOT ENTERED | Medium grained | Sometimes 'flow banding' particularly in cave deposits | [NAME]/opaque; colours often definitive, grain size is variable from amorphous appearance to crystals 10cm or more in length | Not v good in exterior uses but does often feature in rockeries (esp calcite) | limited esp in C19th for interior decoration - eg inlay work,   Almost all  pieces are relatively small | [NAME]/opaque; colours often definitive, grain size is variable from amorphous appearance to crystals 10cm or more in length |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6207 | Spar | 1 | Blue John | Mineral vein and cave deposits - Fluorspar. Usually bright glassy/crystalline/semi-transparent except most varieties of baryte - which are [NAME]/opaque; colours often definitive | PURPLE | Veined | generally n/a; tendency to dull | PARENT UNIT NOT YET ASSIGNED OR CONFIRMED [HIERARCHY CODE] | CARBONIFEROUS | NOT ENTERED | Medium grained | Sometimes 'flow banding' particularly in cave deposits | Usually bright glassy/crystalline/semi-transparent except most varieties of baryte - which are [NAME]/opaque; colours often definitive.  Grain size is variable from amorphous appearance to crystals 10cm or more in length | Widely used esp in C19th for interior decoration - eg inlay work, vases, tassas, windows (back lit), desk-ware, ornaments. . Almost all modern pieces are relatively small. Not v good in exterior uses but does often feature in rockeries (esp calcite) | Widely used esp in C19th for interior decoration - eg inlay work, vases, tassas, windows (back lit), desk-ware, ornaments. Almost all modern pieces are relatively small | Usually bright glassy/crystalline/semi-transparent except most varieties of baryte - which are [NAME]/opaque; colours often definitive.  Grain size is variable from amorphous appearance to crystals 10cm or more in length |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6208 | Blue John | 6207 | Spar | Mineral vein and cave deposits - Fluorspar. Usually bright glassy/crystalline/semi-transparent except most varieties of baryte - which are [NAME]/opaque; colours often definitive | PURPLE | Veined | generally n/a; tendency to dull | PARENT UNIT NOT YET ASSIGNED OR CONFIRMED [HIERARCHY CODE] | CARBONIFEROUS | NOT ENTERED | Medium grained | Sometimes 'flow banding' particularly in cave deposits | Usually bright glassy/crystalline/semi-transparent except most varieties of baryte - which are [NAME]/opaque; colours often definitive, grain size variable from amorphous appearance to crystals 10cm or more in length | Widely used esp in C19th for interior decoration - eg inlay work, vases, tassas, windows (back lit), desk-ware, ornaments. . Almost all modern pieces are relatively small. Not v good in exterior uses but does often feature in rockeries (esp calcite) | Widely used esp in C19th for interior decoration - eg inlay work, vases, tassas, windows (back lit), desk-ware, ornaments. Almost all modern pieces are relatively small | Usually bright glassy/crystalline/semi-transparent except most varieties of baryte - which are [NAME]/opaque; colours often definitive, grain size variable from amorphous appearance to crystals 10cm or more in length |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6209 | Calcspar | 1 | [NAME] | Mineral vein and cave deposits. Usually bright glassy/crystalline/semi-transparent except most varieties of baryte - which are [NAME]/opaque; colours often definitive | WHITE | Banded | generally n/a; tendency to dull | PARENT UNIT NOT YET ASSIGNED OR CONFIRMED [HIERARCHY CODE] | CARBONIFEROUS | NOT ENTERED | Medium grained | Sometimes 'flow banding' particularly in cave deposits | Usually bright glassy/crystalline/semi-transparent except most varieties of baryte - which are [NAME]/opaque; colours often definitive, grain size variable from amorphous appearance to crystals 10cm or more in length | Widely used esp in C19th for interior decoration - eg inlay work, vases, tassas, windows (back lit), desk-ware, ornaments. . Almost all modern pieces are relatively small. Not v good in exterior uses but does often feature in rockeries (esp calcite) | Widely used esp in C19th for interior decoration - eg inlay work, vases, tassas, windows (back lit), desk-ware, ornaments. Almost all modern pieces are relatively small | Usually bright glassy/crystalline/semi-transparent except most varieties of baryte - which are [NAME]/opaque; colours often definitive, grain size variable from amorphous appearance to crystals 10cm or more in length |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6210 | [NAME] | 6209 | Calcspar | Mineral vein and cave deposits. Usually bright glassy/crystalline/semi-transparent except most varieties of baryte - which are [NAME]/opaque; colours often definitive | WHITE | Banded | generally n/a; tendency to dull | PARENT UNIT NOT YET ASSIGNED OR CONFIRMED [HIERARCHY CODE] | CARBONIFEROUS | NOT ENTERED | Medium grained | Sometimes 'flow banding' particularly in cave deposits | Usually bright glassy/crystalline/semi-transparent except most varieties of baryte - which are [NAME]/opaque; colours often definitive, grain size variable from amorphous appearance to crystals 10cm or more in length | Widely used esp in C19th for interior decoration - eg inlay work, vases, tassas, windows (back lit), desk-ware, ornaments. . Almost all modern pieces are relatively small. Not v good in exterior uses but does often feature in rockeries (esp calcite) | Widely used esp in C19th for interior decoration - eg inlay work, vases, tassas, windows (back lit), desk-ware, ornaments. Almost all modern pieces are relatively small | Usually bright glassy/crystalline/semi-transparent except most varieties of baryte - which are [NAME]/opaque; colours often definitive, grain size variable from amorphous appearance to crystals 10cm or more in length |  | [NAME] (NSC) | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6211 | Cawk | 1 | Cauk, Calk | Mineral vein and cave deposits - Baryte. [NAME]/opaque; colours often definitive | BUFF | Veined | generally n/a; tendency to dull | PARENT UNIT NOT YET ASSIGNED OR CONFIRMED [HIERARCHY CODE] | CARBONIFEROUS | NOT ENTERED | Medium grained | Sometimes 'flow banding' particularly in cave deposits | [NAME]/opaque; colours often definitive, grain size is variable from amorphous appearance to crystals 10cm or more in length | Not v good in exterior uses but does often feature in rockeries (esp calcite) | limited esp in C19th for interior decoration - eg inlay work,   Almost all  pieces are relatively small | [NAME]/opaque; colours often definitive, grain size is variable from amorphous appearance to crystals 10cm or more in length |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6212 | Oakstone | 6211 | Cawk | Mineral vein and cave deposits - Baryte. [NAME]/opaque; colours often definitive | BUFF | Veined | generally n/a; tendency to dull | PARENT UNIT NOT YET ASSIGNED OR CONFIRMED [HIERARCHY CODE] | CARBONIFEROUS | NOT ENTERED | Medium grained | Sometimes 'flow banding' particularly in cave deposits | [NAME]/opaque; colours often definitive, grain size is variable from amorphous appearance to crystals 10cm or more in length | Not v good in exterior uses but does often feature in rockeries (esp calcite) | limited esp in C19th for interior decoration - eg inlay work,   Almost all  pieces are relatively small | [NAME]/opaque; colours often definitive, grain size is variable from amorphous appearance to crystals 10cm or more in length |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6213 | Spar | 1 | Blue John | Mineral vein and cave deposits - Fluorspar. Usually bright glassy/crystalline/semi-transparent except most varieties of baryte - which are [NAME]/opaque; colours often definitive | PURPLE | Veined | generally n/a; tendency to dull | PARENT UNIT NOT YET ASSIGNED OR CONFIRMED [HIERARCHY CODE] | CARBONIFEROUS | NOT ENTERED | Medium grained | Sometimes 'flow banding' particularly in cave deposits | Usually bright glassy/crystalline/semi-transparent except most varieties of baryte - which are [NAME]/opaque; colours often definitive.  Grain size is variable from amorphous appearance to crystals 10cm or more in length | Widely used esp in C19th for interior decoration - eg inlay work, vases, tassas, windows (back lit), desk-ware, ornaments. . Almost all modern pieces are relatively small. Not v good in exterior uses but does often feature in rockeries (esp calcite) | Widely used esp in C19th for interior decoration - eg inlay work, vases, tassas, windows (back lit), desk-ware, ornaments. Almost all modern pieces are relatively small | Usually bright glassy/crystalline/semi-transparent except most varieties of baryte - which are [NAME]/opaque; colours often definitive.  Grain size is variable from amorphous appearance to crystals 10cm or more in length |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6214 | Blue John | 6213 | Spar | Mineral vein and cave deposits - Fluorspar. Usually bright glassy/crystalline/semi-transparent except most varieties of baryte - which are [NAME]/opaque; colours often definitive | PURPLE | Veined | generally n/a; tendency to dull | PARENT UNIT NOT YET ASSIGNED OR CONFIRMED [HIERARCHY CODE] | CARBONIFEROUS | NOT ENTERED | Medium grained | Sometimes 'flow banding' particularly in cave deposits | Usually bright glassy/crystalline/semi-transparent except most varieties of baryte - which are [NAME]/opaque; colours often definitive, grain size variable from amorphous appearance to crystals 10cm or more in length | Widely used esp in C19th for interior decoration - eg inlay work, vases, tassas, windows (back lit), desk-ware, ornaments. . Almost all modern pieces are relatively small. Not v good in exterior uses but does often feature in rockeries (esp calcite) | Widely used esp in C19th for interior decoration - eg inlay work, vases, tassas, windows (back lit), desk-ware, ornaments. Almost all modern pieces are relatively small | Usually bright glassy/crystalline/semi-transparent except most varieties of baryte - which are [NAME]/opaque; colours often definitive, grain size variable from amorphous appearance to crystals 10cm or more in length |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6215 | Calcspar | 1 | [NAME] | Mineral vein and cave deposits. Usually bright glassy/crystalline/semi-transparent except most varieties of baryte - which are [NAME]/opaque; colours often definitive | WHITE | Banded | generally n/a; tendency to dull | PARENT UNIT NOT YET ASSIGNED OR CONFIRMED [HIERARCHY CODE] | CARBONIFEROUS | NOT ENTERED | Medium grained | Sometimes 'flow banding' particularly in cave deposits | Usually bright glassy/crystalline/semi-transparent except most varieties of baryte - which are [NAME]/opaque; colours often definitive, grain size variable from amorphous appearance to crystals 10cm or more in length | Widely used esp in C19th for interior decoration - eg inlay work, vases, tassas, windows (back lit), desk-ware, ornaments. . Almost all modern pieces are relatively small. Not v good in exterior uses but does often feature in rockeries (esp calcite) | Widely used esp in C19th for interior decoration - eg inlay work, vases, tassas, windows (back lit), desk-ware, ornaments. Almost all modern pieces are relatively small | Usually bright glassy/crystalline/semi-transparent except most varieties of baryte - which are [NAME]/opaque; colours often definitive, grain size variable from amorphous appearance to crystals 10cm or more in length |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6216 | [NAME] | 6215 | Calcspar | Mineral vein and cave deposits. Usually bright glassy/crystalline/semi-transparent except most varieties of baryte - which are [NAME]/opaque; colours often definitive | WHITE | Banded | generally n/a; tendency to dull | PARENT UNIT NOT YET ASSIGNED OR CONFIRMED [HIERARCHY CODE] | CARBONIFEROUS | NOT ENTERED | Medium grained | Sometimes 'flow banding' particularly in cave deposits | Usually bright glassy/crystalline/semi-transparent except most varieties of baryte - which are [NAME]/opaque; colours often definitive, grain size variable from amorphous appearance to crystals 10cm or more in length | Widely used esp in C19th for interior decoration - eg inlay work, vases, tassas, windows (back lit), desk-ware, ornaments. . Almost all modern pieces are relatively small. Not v good in exterior uses but does often feature in rockeries (esp calcite) | Widely used esp in C19th for interior decoration - eg inlay work, vases, tassas, windows (back lit), desk-ware, ornaments. Almost all modern pieces are relatively small | Usually bright glassy/crystalline/semi-transparent except most varieties of baryte - which are [NAME]/opaque; colours often definitive, grain size variable from amorphous appearance to crystals 10cm or more in length |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6217 | Duke's Red Marble | 1 |  | ! | RED | Uniform | Not used externally | PARENT UNIT NOT YET ASSIGNED OR CONFIRMED [HIERARCHY CODE] | CARBONIFEROUS | NOT ENTERED | fine | none; derived from mineral vein, but some examples banded with white or pink calcite | Compact vermillion coloured | N/A | ! | Compact vermillion coloured |  | [NAME] (NSC) | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
6218 | Jurassic Limestone | 1 |  | Jurassic Limestone |  |  | ! | JURASSIC ROCKS (UNDIFFERENTIATED) | JURASSIC | NOT ENTERED | ! | ! | ! | ! | ! | ! |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6219 | Yorkshire Flagstones | 1 |  | ! |  |  | ! | PARENT UNIT NOT YET ASSIGNED OR CONFIRMED [HIERARCHY CODE] |  | NOT ENTERED | ! | ! | ! | ! | ! | ! |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6220 | Jurassic Oolitic Limestone | 1 |  | ! |  |  | ! | JURASSIC ROCKS (UNDIFFERENTIATED) | JURASSIC | LIMESTONE, OOIDAL | ! | ! | ! | ! | ! | ! |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6221 | Jurassic Limestone | 1 |  | Jurassic Limestone |  |  | ! | JURASSIC ROCKS (UNDIFFERENTIATED) | JURASSIC | NOT ENTERED | ! | ! | ! | ! | ! | ! |  | DGCA | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6222 | Yorkshire Flagstones | 1 |  | ! |  |  | ! | PARENT UNIT NOT YET ASSIGNED OR CONFIRMED [HIERARCHY CODE] |  | NOT ENTERED | ! | ! | ! | ! | ! | ! |  | DGCA | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6223 | Jurassic Oolitic Limestone | 1 |  | ! |  |  | ! | JURASSIC ROCKS (UNDIFFERENTIATED) | JURASSIC | LIMESTONE, OOIDAL | ! | ! | ! | ! | ! | ! |  | DGCA | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6224 | Sandstone Flags | 1 |  | ! |  |  | ! | PARENT UNIT NOT YET ASSIGNED OR CONFIRMED [HIERARCHY CODE] | CARBONIFEROUS | NOT ENTERED | ! | ! | ! | ! | ! | ! |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6225 | [NAME] | 1 |  | ! |  |  | ! | PARENT UNIT NOT YET ASSIGNED OR CONFIRMED [HIERARCHY CODE] | CARBONIFEROUS | NOT ENTERED | ! | ! | ! | ! | ! | ! |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6226 | Sandstone Flags | 1 |  | ! |  |  | ! | PARENT UNIT NOT YET ASSIGNED OR CONFIRMED [HIERARCHY CODE] | CARBONIFEROUS | NOT ENTERED | ! | ! | ! | ! | ! | ! |  | DGCA | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6227 | [NAME] | 1 |  | ! |  |  | ! | PARENT UNIT NOT YET ASSIGNED OR CONFIRMED [HIERARCHY CODE] | CARBONIFEROUS | NOT ENTERED | ! | ! | ! | ! | ! | ! |  | DGCA | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6228 | Red Sandstone | 1 |  | Red and pink sandstones | RED | Variable | Red and pink | PARENT UNIT NOT YET ASSIGNED OR CONFIRMED [HIERARCHY CODE] |  | NOT ENTERED | ! | ! | ! | ! | ! | ! |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6229 | Buff Sandstone | 1 |  | [NAME] sandstone, pink, grey and red variations | BUFF | Variable | Pink, [NAME] and red | PARENT UNIT NOT YET ASSIGNED OR CONFIRMED [HIERARCHY CODE] |  | NOT ENTERED | ! | ! | ! | ! | ! | ! |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6230 | Sandstone | 1 |  | Sandstone |  | Variable | ! | PARENT UNIT NOT YET ASSIGNED OR CONFIRMED [HIERARCHY CODE] |  | NOT ENTERED | ! | ! | ! | ! | ! | ! |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6231 | Limestone | 1 |  | Limestone |  | Variable | ! | PARENT UNIT NOT YET ASSIGNED OR CONFIRMED [HIERARCHY CODE] |  | NOT ENTERED | ! | ! | ! | ! | ! | ! |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6232 | Sandstone | 1 |  | Sandstone |  | Variable | ! | PARENT UNIT NOT YET ASSIGNED OR CONFIRMED [HIERARCHY CODE] |  | NOT ENTERED | ! | ! | ! | ! | ! | ! |  | DGCA | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6233 | Pebbles | 1 |  | Pebbles, used in a mortar matrix |  |  | ! | PARENT UNIT NOT YET ASSIGNED OR CONFIRMED [HIERARCHY CODE] |  | NOT ENTERED | ! | ! | ! | ! | ! | ! |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6234 | Boulders | 1 |  | Rounded boulders |  |  | ! | PARENT UNIT NOT YET ASSIGNED OR CONFIRMED [HIERARCHY CODE] |  | NOT ENTERED | ! | ! | ! | ! | ! | ! |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6235 | Stone flags | 1 |  | Flaggy sedimentary rock |  |  | ! | PARENT UNIT NOT YET ASSIGNED OR CONFIRMED [HIERARCHY CODE] |  | NOT ENTERED | ! | ! | ! | ! | ! | ! |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6236 | Stone flags | 1 |  | Flaggy sedimentary rock |  |  | ! | PARENT UNIT NOT YET ASSIGNED OR CONFIRMED [HIERARCHY CODE] |  | NOT ENTERED | ! | ! | ! | ! | ! | ! |  | DGCA | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6237 | Limestone | 1 |  | Limestone |  | Variable | ! | PARENT UNIT NOT YET ASSIGNED OR CONFIRMED [HIERARCHY CODE] |  | NOT ENTERED | ! | ! | ! | ! | ! | ! |  | DGCA | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | Building Spreadsheet | 2012-05-16 10:20:35
6238 | Arden Stone | 6036 | Pennine Lower Coal Measures Sandstone | Limestone | GREY | Banded | ! | PENNINE LOWER COAL MEASURES [NAME] | CARBONIFEROUS | NOT ENTERED | Fine grained | ! | ! | ! | ! | ! |  | DGCA | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | Sources Spreadsheet | 2012-05-16 10:20:35
6239 | Birch Vale Stone | 6055 | Woodhead Hill Rock | Mostly fairly fine (silty) or medium grained in this area | GREY | Banded | grey | WOODHEAD HILL ROCK | CARBONIFEROUS | NOT ENTERED | Fine grained | well bedded | Mostly fairly fine (silty) or medium grained in this area | Not known | Buildings ; field walls | Mostly fairly fine (silty) or medium grained in this area |  | DGCA | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | Sources Spreadsheet | 2012-05-16 10:20:35
6240 | Wimberry Moss Stone | 6103 | Chatsworth Grit | ! |  |  | ! | CHATSWORTH GRIT | CARBONIFEROUS | NOT ENTERED | ! | 1 | ! | ! | ! | ! |  | DGCA | Peak District National Park Authority | Derbyshire And Peaks English Heritage Atlas Area | Sources Spreadsheet | 2012-05-16 10:20:35
10618 | Lower Magnesian Limestone | 1 |  | fine to medium grained | BUFF | Banded | Pink/Buff in bands | CADEBY FORMATION | PERMIAN | DOLOMITE | FINE GRAINED | Planar and wedge bedding; occasionally dome structures. Relict fossils v v occasionally. The vughy texture of most dolomites is not common here. In some areas there are thin veins often with  a greenish tinge | Variegated, white, [NAME], yellow and orange, dolomitic or magnesium-rich limestone May be crystalline, ooidal or bioclastic in character; saccharoidal (sugar-like) texture is common.. Fossils v rare indeed and may be partially altered. Finely defined dendritic patterns often on newly exposed surfaces (due to manganese/iron compounds). | Breaks down in sulphur-laden atmospheres (forms highly soluble magnesium sulphate). Thin veins or bedding planes may be clay/marl-filled and therefore susceptible | Buildings ; field walls | Used widely within the outcrop area and beyond (especially to the E) for domestic, most ecclesiastical and civic buildings. Most notable examples (largely or entirely sourced outside Derbys) include [NAME] and the Palace of Westminster. Main historic source in the county = Bolsover Moor.  Worked on a large scale at Whitwell  for aggregates and dolime | 2009-01-05 00:00:00 | [NAME] (NSC) | DERBYSHIRE and PEAK DISTRICT EH SOURCE REGION | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC) | 2012-05-16 10:20:35
10749 | [NAME] | 1 |  |  |  |  |  | PARENT DATA NOT YET ENTERED [HIERARCHY CODE] | CARBONIFEROUS | GRANITE |  |  |  |  | ? | Derbyshire and Peak District usage |  | D Cameron | Derbyshire County Council | Derbyshire And Peaks English Heritage Atlas Area | [NAME] (NSC), Derbyshire & Peak District Buildings Spreadsheet | 2012-05-16 10:20:35