The Ketchum keystone. [volume] (Ketchum, Idaho) 1885-1899, 1892-01-23
MINING TERMS.

MINING TERMS.
Adit-A level, q horizontal drift or pas
sage from the surface into Z mine.
Bed-A horizontal seam or deposit Of
mineral.
Blende--An ore of zinc, consisting Of
zinc and sulphur.
Breast-The face of tunnel or drift.
Cap-A vein is in the "cap" wAe0 It is
much contracted.
Carbonates- carbonates; salts con-
tanning carbonates; the same with iron
Chlorides-A compound Of chlorine
and silver.
Cheek-The side or wall of vein.
Chimneys-The richer spots in lodes
a. distinguished from poorer ones.
Contact Vein-A vein along the con-
tact plane Of or between two dissimilar
rock masses.
Country Rock-The rock masses on
each side of q vein.
Course of Vein-Along its length (see
"Strike'O.
Cribbing-A timber or plank lining of
a shaft, the confining of wall.
Cropping Out-The raising. of layers
of rock exposed at surface.
Cross Cut-A level driven across the
course of the vein.
Cut-To intersect vein; open cut, =
level without covering driven across the
course of the vein.
Dip-The slope, pitch or angle which
vein makes with the plain Of the horizon.
Drift-A horizontal passage under
ground.
Dump-A place of failing or waste
rock, also of ore.
Face The end of drift or tunnel.
Fault-A displacement or brake OF
strata or veins so that they are not con-
| tlnuous.
Feeder-A small vein entering 4 large
one.
Fissure Vein-A fissure or crack in the
earth's crust filled with mineral matter.
Float-Loose rock or isolated masses of
ore detached from the original formation.
ot-wall-The layer of rock immedi-
ately under the vein.
| Galena-Lead ore, sulphur and lead.
Gangue-The substance inclosing and
accompanying the ore in vein.
| Cash Vein-A vein wide above and mar
row below.
Gcode-A cavity studded round with
crystals of mineral matter; rounded
stone containing such cavity.
Hanging Wall-The layer Of rock or
wall over lode.
Heading-The vein above the drift.
Horse-A mass of rock matter occur
ring in or between the branches of vein.
| Washing down placer
claim by the uee of hose or 'giant nozzle"
Inclined Drift-An inclined passage
underground.
Infiltration-The theory that veins fill
ing is introduced by an igneous fluid and
solidifed.
In Place-A vein or load inclosed on
both sides by fixed and .lmmovoable rock.
Lagging-The timber over and npon
the sides of drift.
Level A horizontal passage or drift
into mine from q shaft.
Little Giant-A jointed iron nozzle
used in placer mining.
Neutrality-suspicious. of mineral matter
containing ores in assures.
Matrix-The rock or earthly matter con-
tanning metallic ore.
Mill Run-A test Of quantity Of ore
after reduction.
Outcrop-That portion of the vein ap-
pearing at the surface.
Placer-A place gravelly where gold is
found; includes all forms of mineral de-
posits excepting veins in place. Section.
20, 20, revised statutes, United States.
Pocket-A rich spot in 4 vein or deposit
Rifle Blocks--Wooden blocks set on
end in sluice, with interstices for catch
ing gold.
between the vein and walls.
| Shaft--A we'll like excavation in the
earth.
Shift-The time for q miners work in
one day or night.
| Slickensides- polished surface
of walls caused by violent trituration.
Sluices-Boxes joined together, set
with rifle blocks, through which il
washed auriferous earth.
Stamps-Machines for crushing ores.
Stope-One of q series of steps into
which the upper surface Of an excavation
is cut; to excayate in the form of steps
above adrift.
| Stoping-The act of stoping or break
ing down the surface Of an excavation
with pick.
Strike-1he extension of lode in
horizontal direction.
Stull-A frame work covered with tim
Der or planks, to support rubbish In
working stope.
Sublimation-The theory that the vein
matter was introduced in gaseous con-
dition.
Sump-That part of the shaft below
the platform used for receiving water.
Tailings-The refuse matter discharged
from the end of sluice.
Tunnel-A level, driven at right angles
to the vein, winch its object is to reach.
| Neutrality-suspicious. of mineral matter
in assures of rocks.
4 Walls-The sides next to the lode.
u Wilma machine for raising ores and
refuse.
Winze-.A shaft sunk from one level
to another.-Salt Lake Exchange Journal.
: Mr.. Gladstone said In recent IA.
dress to q workingmen's organization;
SIT was not extravagant to say that al