- 行业: Mining
- Number of terms: 33118
- Number of blossaries: 0
- Company Profile:
The U.S. Bureau of Mines (USBM) was the primary United States Government agency conducting scientific research and disseminating information on the extraction, processing, use, and conservation of mineral resources.
Founded on May 16, 1910, through the Organic Act (Public Law 179), USBM's missions ...
Amethyst crystal, from a geode, commonly possessing only the six (or possibly three) rhombohedral terminal faces; generally with gradational color, the best at the apex commonly grading to colorless at its base.
Industry:Mining
Ammonia water; esp., a solution of ammonia containing 10% ammonia by weight.
Industry:Mining
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.
Industry:Mining
Ammonium nitrate, NH<sub>4</sub>NO<sub>3</sub>; nitrammite. Also spelled ammonia nitre.
Industry:Mining
Among numerous provisions, the statute (30 USC 26) provides that extralateral rights to veins, lodes, and ledges that come to an apex within the boundary lines and dip downward so as to extend outside the vertical planes through the side lines belong to the owner of such lode location. The extralateral portion of the vein is that part that extends on its downward dip through the vertical planes along the side lines.
Industry:Mining
Among the smaller capacity cars, the most popular and most widely used are the gravity dump types, such as rocker dump and scoop cars, designed so that the weight of the load tips the body when a locking latch is released by hand. The body of this type is balanced to right itself after the load is discharged. Rocker dump cars range in capacity from 1 yd<sub>3</sub>(0.76 m<sub>3</sub>) handloaded types, to units of 10 yd<sub>3</sub>(7.6 m<sub>3</sub>) for power shovel loading.
Industry:Mining
Amorphous (Zn,Ca)Al<sub>2</sub>(PO<sub>4</sub>)<sub>2</sub>.5H<sub>2</sub>O ; a doubtful mineral species.
Industry:Mining
