- 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 ...
Descriptive of element or group that ionizes negatively, or acquires electrons and therefore becomes negatively charged anion.
Industry:Mining
Descriptive of materials that normally have high insulating qualities, e.g., rubber hoses and belts that have been rendered conductive to reduce risk of sparks or electric shocks in mines, or other places where there is a fire risk.
Industry:Mining
Descriptive of minerals with hexagonal habit without hexagonal symmetry; e.g., hexagonal plates of monoclinic mica.
Industry:Mining
Descriptive of two minerals with the same crystal structure but different end-member compositions which may show partial or complete crystal miscibility (solid solution) between them. One mineral may belong to more than one isomorphous series; e.g., the garnet grossular forms a series with andradite, with hibschite and katoite, and with uvarovite. There are many isomorphous series among minerals; e.g., plagioclase feldspars, monoclinic pyroxenes, and the spinel and garnet groups. Compare: solid solution
Industry:Mining
Descriptive term for amphoteric substance, able to react in accordance with two oppositely directed structural arrangements of its atoms.
Industry:Mining
Desensitizing of an explosive, caused by excessive pressure or high density.
Industry:Mining
Designating a method of shaft excavation by drifting to a point below and then raising.
Industry:Mining
Designating or conforming to either of the scales used by the French chemist, Antoine Baume (1728-1804). One scale, which is used with liquids heavier than water, sinks to 0 degrees (B or Be, symbols for Baume) in pure water and to 15 degrees (B or Be) in a 15% salt solution. The other scale, for liquids lighter than water, sinks to 0 degrees (B or Be) in a 10% salt solution and to 10 degrees (B or Be) in pure water.
Industry:Mining
