upload
United States Bureau of Mines
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 ...
Minute wax-yellow to brown, trigonal pyramidal crystals, intergrown with synchysite, parisite, and bastnasite, from Narsarsuk, Greenland. From X-ray and optical data, the composition is deduced as Ca<sub>2</sub>(Ce,La)<sub>3</sub>(CO<sub>3</sub>)<sub>5</sub>F<sub>3</sub>. Also spelled roentgenite.
Industry:Mining
Minute, colorless, monoclinic, lath-shaped crystals, presumably a hydrocarbon; found in chemawinite (variety of amber), Cedar Lake, MB, Canada.
Industry:Mining
Mirror or prism attached to the eyepiece of a microscope, enabling an observer to sketch the object displayed.
Industry:Mining
Miscellaneous pieces of steel, old and new, used in the bath for steel making, esp. in the open-hearth furnace.
Industry:Mining
Misplacement of relatively fine material due to its adherence to a coarser fraction being settled and dragged out in mechanical classification or heavy-media separation.
Industry:Mining
Missed hole resulting from the failure of a blasting cap to detonate owing to the breaking of a fuse or conductor or to some other similar cause.
Industry:Mining
Misspelling of fornacite. See: fornacite
Industry:Mining
Misspelling of kaersutite.
Industry:Mining
Mixed arsenates and oxides of cobalt produced by roasting sulfide ores.
Industry:Mining
Mixed clay and sand or rock.
Industry:Mining
© 2024 CSOFT International, Ltd.