- Industry: 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 ...
The methods of working coal seams have been gradually evolved and progressively improved or modified as knowledge and experience were gained and power machines became available. Over the years, a very large number of methods of mining coal have been developed to suit the seam and local conditions, and they may be split, broadly, into longwall, and pillar methods of working.
Industry:Mining
The mine car track layout from the shaft to the preparation plant and back to the shaft. The term includes all the equipment necessary to move and control the movement of cars, such as creepers, retarders, back shunts, traversers, and turntables.
Industry:Mining
The mineral group alleghanyite, chondrodite, clinohumite, humite, jerrygibbsite, leucophoenicite, manganhumite, norbergite, ribbeite, and sonolite; monoclinic and orthorhombic fluosilicates of magnesium, iron, and/or manganese, with hydroxyl commonly replacing fluorine; similar physical properties, and structures closely related to those of the olivines; in metamorphosed dolomitic limestones, or skarns associated with ore deposits; commonly as chondrodite and clinohumite; at the Tilly Foster iron mine near Brewster and at Franklin, NJ.
Industry:Mining
The mineral group amesite, antigorite, berthierine, brindleyite, clinochrysotile, cronstedite, dickite, endellite, fraiponite, greenalite, halloysite, kaolinite, kellyite, lizardite, manandonite, nacrite, nepouite, orthochrysotile, parachrysotile, and pecoraite. Compare: serpentine
Industry:Mining
The mineral group arsenohauchecornite, bismutohauchecornite, hauchecornite, tellurohauchecornite, and tucekite.
Industry:Mining
The mineral group bianchite, ferrohexahydrite, hexahydrite, moorhouseite, and nickelhexahydrite.
Industry:Mining
The mineral group burtite, natanite, schoenfliesite, vismirnovite, and wickmanite.
Industry:Mining
