a. Eng. A drift or adit driven into a hillside from which coal is worked.
See also:groove
b. Corn. Mine; bal. Hess
A former name for pennantite.
a. An old English term for a coarse-grained granite, grit, or sandstone.
AGI
b. A grus developed by the disintegration of a granite. Syn:grouan
See:grus
A notched or fingered plank or light timber used to align ends of pipe
being screwed together, as when laying a waterline. Long
Quarrymen's term to designate the place where the sheet structure dies
out, or the place where two sheets appear to grow onto one another.
a. An increase in dimensions of a compact that may occur during sintering
(converse of shrinkage). ASTM
b. As applied to cast iron, the tendency to increase in volume when
repeatedly heated and cooled. CTD
c. See:make of water
The removal of the root system incident to the surface growth.
Carson, 1
Ger. A mine.
A saw made from a coarsely notched blade of soft iron and provided with a
wooden back; it is used, with sand, for sawing stone by hand.
Standard, 2
In the Western United States, supplies or funds furnished to a mining
prospector on promise of a share in his discoveries. So called because the
lender stakes or risks provisions so furnished. Webster 3rd
An agreement between two or more persons to locate mines upon the public
domain by their joint aid, effort, labor, or expense, and each is to
acquire by virtue of the act of location such an interest in the mine as
agreed upon in the contract. Fay
Sp. Lump ore. The term is used at the mercury mines in California.
Eng. A pit or shaft.
Blasting coal out of the solid face as opposed to blasting coal that has
been undercut by hand or by coal cutter. Nelson
Granulated pig iron used in making granulated steel. Webster 2nd
A monoclinic mineral, (Fe,Mg)7 Si8 O22 (OH)2 ;
amphibole group, with Mg/(Mg+Fe)=0-0.3 ; forms series with cummingtonite
and with magnesiocummingtonite; fibrous or needlelike, commonly in radial
aggregates; characteristic of iron formations in the Lake Superior and
Labrador Trough regions. Also spelled gruenerite.
A hooked rod to aid in supporting a crucible. Standard, 2
The fragmental products of in situ granular disintegration of granite and
granitic rocks. Syn:grush; residual arkose; growan. Etymol: Ger. Grus,
grit, fine gravel, debris. Also spelled: gruss. AGI
See:grus
A name which has been used for pyrophyllite. See also:pyrophyllite
Dodd
Corn. A place from which the ore has been extracted. Syn:gunis
CTD