a. A person employed at the face of a quarry, stripping, drilling,
excavating, and loading rock or economic product. Nelson
b. One who operates a jackhammer to drill holes in quarry stone, and
drives wedges into the holes to break or split off slabs or blocks of
stone. Also called hammerman; plug-and-feather driller; rockman; rock
splitter. DOT
c. In crushed rock quarries, a laborer who performs any one or combination
of such duties as: loading rock into boxes to be hoisted out of quarry
pit; assisting in moving power shovel from one loading position to
another; dumping rock from cars into crusher or storage bins; feeding rock
into a crusher; tending belt conveyors that transport crushed rock from
crusher to storage bins; loading crushed rock from storage bins into
trucks or railroad cars. DOT
d. In building stone quarries, a laborer who performs any one or
combination of such duties as: cleaning dirt and mud from surface and
sides of stone deposits; chipping irregularities from surface of granite
blocks; breaking large pieces of stone into smaller sizes suitable for
building purposes with a sledge hammer; attaching hoisting cable hooks or
slings to blocks of stone to be hoisted from quarry; guiding and steadying
blocks of stone as they are loaded at the quarry surface on trucks or
railraod cars by a derrick. DOT
Ammonium nitrate dynamites intended to replace the more costly gelatin
dynamites used in quarrying, where blasts of several tons of explosives
are used. Cartridges up to 8 in (20 cm) in diameter by 21 in (53 cm) in
length, can be enclosed in metal cans to protect against water damage.
Lewis
Overburden. CF:ridding
a. The moisture contained in newly quarried stone. Arkell
b. See:quarry water
Material discarded after crushing, as being too fine, irregular, or flaky
for constructional work. Nelson
a. Water that fills the pore spaces of a rock in a quarry.
See also:ground water
b. Subsurface water retained in freshly quarried rock. Syn:quarry sap
AGI
The separation of gold from silver by dissolving out the latter with
nitric acid. It requires not less than three-fourths of silver in the
alloy, whence the name, which is also applied to the alloying of gold with
silver, if necessary, to prepare it for this method of parting.
See:parting
a. The act or process of dividing sludge, core, and other pulverized or
granular samples into four equal parts. See also:quartering
Long
b. Syn. for quadrant as applied to a drill-bit crown. Long
a. The reduction in quantity of a large sample of material by dividing a
heap into four approx. equal parts by diameters at right angles, removing
two diagonally opposite quarters and mixing the two remaining quarters
intimately together so as to obtain a truly representative half of the
original mass. The process is repeated until a sample is obtained of the
requisite size. Syn:coning; coning and quartering. Taylor
b. To split a piece of core longitudinally into four equal parts.
Long
Lanc. A plan of building or putting together tubbing plates from the top
downward, the rings and segments being bolted together as the work of
excavation proceeds.
a. A quarry term to designate a direction in which a rock cleaves with
moderate facility; grain. See also:roughway
b. The direction of the natural joints in a quarry rock. CF:rift
c. Grain, second way, bate, hem, sheeting plane.
Western United States. The survey line by which a section of government
land is divided into quarter sections.
An underground survey required by law to be undertaken at least once every
three months for the purpose of bringing the working plans and other plans
up to date. BS, 7
A square shaft with corners cut back. Nichols, 1
Small veins having an intermediate bearing between strike and cross veins.
A post marking a corner of a quarter section of the U.S. Public Land
Survey system. It is located midway between section corners. AGI
A fourth of a normal section of the U.S. Public Land Survey system,
representing a piece of land normally 1/2 mile (0.8 km) square and
containing 160 acres (64 ha) nearly as possible. It is usually identified
as the northeast, northwest, southeast, or southwest quarter of a
particular section. AGI
a. A trigonal mineral, SiO2 ; polymorphous with tridymite,
cristobalite, coesite, stishovite, and keatite. Amethyst is a variety of
the well-known amethystine color. Aventurine is a quartz spangled with
scales of mica, hemitite, or other minerals. False topaz or citrine is a
yellow quartz. Rock crystal is a watery clear variety. Rose quartz is a
pink variety. Rutilated quartz contains needles of rutile. Smoky quartz is
a brownish variety, sometimes called cairngorm. Tigereye is crocidolite
(an asbestoslike mineral) replaced by quartz and iron oxide and having a
chatoyant effect. The name of the mineral is prefixed to the names of many
rocks that contain it, as quartz porphyry, quartz diorite.
See also:alpha quartz; beta quartz; high quartz; low quartz.
Sanford; Fay
b. Pac. Any hard, gold or silver ore, as distinguished from gravel or
earth. Hence, quartz mining, as distinguished from hydraulic mining, etc.
Fay
c. A general term for a variety of cryptocrystalline varieties of SiO (sub
2) ; e.g., agate, chalcedony.
See:dacite
A stamp, or series of stamps, for crushing quartz ore. Mathews
An outcrop of a quartz vein.