- 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 ...
One of the spectral colors produced by the strengthening or the weakening of certain wavelengths of a composite beam of light in consequence of interference. This is an important characteristic in determining minerals in thin section or in fragments under the polarizing microscope.
Industry:Mining
One of the three coordinates in a three-dimensional rectangular coordinate system.
Industry:Mining
One of the three crystallographic axes used as reference in crystal description. It is oriented horizontally, right to left. The letter b usually appears in italics. Compare: a axis; c axis.
Industry:Mining
One of the three mutually perpendicular axes of the strain ellipsoid.
Industry:Mining
One of the three processes by which diamonds are prepared for use as ornaments or in the arts, the others being diamond cleaving and diamond polishing.
Industry:Mining
One of the tiny hollow spheres of glass or plastic that are added to explosive materials to enhance sensitivity and control density by assuring an adequate content of entrapped air.
Industry:Mining
One of the train of rolls by which a slab or bloom of metal is converted into puddled bars.
Industry:Mining
One of the two subdivisions of competent rock. To be classed as bedded rock, the rock within each bed, in addition to being elastically perfect, isotropic, and homogeneous, must have a bed thickness that is small compared with the roof span, and the bond between beds must be weak. Most sedimentary rocks and some stratified metamorphic rocks fall in this group.
Industry:Mining
One of the two wires attached to and forming a part of an electric blasting cap or squib.
Industry:Mining
One of the undulations on a fault surface, deeper than fault striae but similarly formed. They record larger movements and have greater significance as indicating the direction of movement.
Industry:Mining
