- 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 ...
Large clusters of diversely oriented and partially intergrown crystals of muscovite with a little interstitial albite and quartz.
Industry:Mining
Large cone (e.g., Callow) in pulp flow line designed to remove fine slimes as overflow while delivering a thickened spigot product containing the coarser particles.
Industry:Mining
Large isometric crystals consisting of mixtures of nepheline and orthoclase, or of analcime formed as breakdown products of leucite; occurs in syenites from Arkansas, Montana, and Brazil. Compare: leucite; metaleucite.
Industry:Mining
Large pit filled with water into which molten cinder is run and granulated at cast or flush.
Industry:Mining
Large steel mortar in which a heavy steel pestle rolls. Once used in grinding and amalgamation of gold ores.
Industry:Mining
Large, nodular concretions found in certain clays and marls. In form, they have a rough resemblance to turtles, and this appearance is increased by their being divided into angular compartments by cracks filled with spar, reminding one of the plates on the shell of a turtle.
Industry:Mining
Large-scale secondary folding of preexisting folds, in response to stresses that varied considerably from those that caused the original folding. The axial planes of the original folds are folded.
Industry:Mining
