Ashland tidings. [volume] (Ashland, Or.) 1876-1919, 1916-02-28

and Gold Hill districts. Occurs scat
tered through the rocks in stringers
instead of distinct veins. In the Ash
land district the cinnabar occurs In
calcite veins in the bedrock of placer
mines. Use: The chief ore of mer-
curry.
Galena (calcerite, lead g'ance)
Ashland, Upper Applegate and Gold
Hill districts. Occurs as vein min
eral associated with chalcopyrite,
pyrite and sphalerite; in some 'locali-
ties barte fluorite and calcite are as
sociated; also occurs as replace
ment of limestone, due to metasomat-
| ic processes. Uses: Ore of lead; at
times contains enough silver to make
It a valuable silver ore; gold is often
present
Garnet, Gold Hill (in black sand .
/ Occurs, among other locations, in
crystalline limestone at contacts with
igenous masses; in seams of chrom-
ite; in placers commonly termed
ruby sands"). Uses: For abrasive
purposes in finishing wood and leath-
er. Some crystals are used for gems.
Perfect crystals are valuable as mu-
scum specimens.
Gold (lode), Applegate, Blue
Ledge, Foots creek, Gals creek, Jack
sonville, Gold Hill, Draper, Wood
Vile, Applegate, Rock Point and
Weimer districts; also in black sand
at Medford, Birdseye creek and Wat
kins. Occurs in quartz veins associat-
ed with pyrite, chalcopyrite, sphaler-
ite, arsenopyrite, ETC.; in placers, in
quartz conglomerates; as secondary
mineral in the oxidized zone. The
value and uses of gold are familiar.
Graphite, in Upper Applegate dis
trict on hillside east of Sterling, near
Buncomb, and at the Blue Ledge
mines in Upper Applegate district
Occurs in gneisses and schists; in fis-
sure veins; in meteorites; in crystal
line limestones. Uses: Manufacture
of lubricants, refractory crucibles,
electric supplies and lead pencils.
Gypsum, Alton or Barron mine,
Ashland district. Occurs in lake bed
deposits associated with salt anhy-
drite and limestone. Gypsum is
formed by the evaporation of waters
of inland seas. Uses: Manufacture
of plaster OF paris and as fertilizer
Gland plaster); as retarder and
adulterant in cement.
Hematite cred iron ore), in sec
ton 8, twp. 3S s., R. 1 e., where it
occurs in clay bank, also in Gold
Hill district. Occurs as a replacement
of cherry iron carbonate by meta
somatic processes; as metasomatic
rep placement of oolithic limestone;
former from other minerals by alter
alton or replacement occurs as pig
ment in minerals and rocks. Uses:
Ore of iron. For manufacturing of
cheap paint, for chalk to mark assay
crucibles and as polishing powder.
Ilmenite (titanic iron ore, menac-
canite), Ashland, Weimer, Gold Hill,
Foots creek and Watkins lin black
sandD. Occurs in igneous rocks,
chife'y dabases; in black sands.
Uses: For lining pudding furnaces.
Kaoinite (kaoln, china clay ten
miles east of Ashland. Occurs as a
secondary mineral, due to alteration
of aluminous silicates. Uses Manu-
facture of china, porcelain, stone
ware, fire brick, fancy tile, etc.
Limonite (brown iron ore), in sec
tion 3, twp. SO s., R. w., in Gold
Hill district. Occurs in marshy
places or bogs; as a secondary min
eral formed by the alteration of
pyrite in ore veins Uses: Ore of
iron; manufacture of some yellow
and brown paints.
Magnetic, Gold Hill occurs as
magnetic pyrovenite), Ashland,
Weimer, Cold Hill, Jacksonville,
Medford, Birdseye creek, Foots creek
and Watkins (in black sand). Oc-
ours in black sands of the Pacific
coast; in ore deposits formed by mag
natic segregation; in schists and
gneisses as lens-shaped bodies; in the
contact zone between igneous rocks
and limestone; widely distributed
through igneous rocks. Uses: Ore
Of iron.
Malachite (green carbonate of cop
peri. Alton or Barron mines, Ashland
district. Occurs in the upper oxidized
zone of copper deposits as second
ary mineral. Uses: Ore of copper.
Banded varieties are polished and
used for ornaments and jewelry. Pig
ment in imitation bronze.
Marcasite, Ashland district. Oc-
ours in sedimentary rocks, often con-
cretionary in form; in ore veins, but
not as common as pyrite. Uses:
1. ..aa1 L.. -