- 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 ...
A term used to describe mineral crystals sufficiently transparent to transmit light.
Industry:Mining
A term used to describe mineral crystals sufficiently transparent to transmit light.
Industry:Mining
A term used to describe the digging action of a dragline when excavation takes place with the bucket heel above the line of the cutting lip. This term is usually used when referring to an operating method in which the dragline bucket excavates above the line of the fairlead and fills above tub level.
Industry:Mining
A term used to describe the operation of removing excessive body metal from badly worn bits.
Industry:Mining
A term used to designate standard or full weight pipe, which is the Briggs standard thickness of pipe.
Industry:Mining
A term used to distinguish all the varieties of quartz which are not cryptocrystalline, such as rock crystal, amethyst, citrine, cairngorm, rose quartz, tiger eye, etc.
Industry:Mining
A term used to express the result of the action of a joint owner of a mining claim who by proper notices causes the interest of the co-owner to be forfeited for failure to perform his or her share of the assessment work.
Industry:Mining
A term used to include electric blasting caps, ordinary blasting caps, fuse, blasting machines, galvanometers, rheostats, etc., in fact, everything used in blasting, except explosives. Compare: blowing tools
Industry:Mining
