- 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 ...
An orthorhombic mineral, 4(gamma-FeO(OH)) ; polymorphous with akaganeite, feroxyhyte, and goethite; yellow to orange-red; the weathering product of iron-bearing minerals; forms the pigment brown ocher; such iron oxyhydroxides constitute the rock limonite.
Industry:Mining
An orthorhombic mineral, 4(KNO<sub>3</sub>) ; water soluble; has a cooling salty taste; a product of nitrification in most arable soils in hot, dry regions, and in the loose earth forming the floors of some natural caves. Compare: nitratine
Industry:Mining
An orthorhombic mineral, 4(LiFe<sub>2+</sub>(PO<sub>4</sub>)) , with manganese replacing iron toward lithiophilite; bluish to greenish gray; in granite pegmatites.
Industry:Mining
An orthorhombic mineral, 4(LiMnPO<sub>4</sub>) ; forms a series with triphylite; in granite pegmatites; an ore of lithium.
Industry:Mining
An orthorhombic mineral, 4(Mg<sub>2</sub>SiO<sub>4</sub>) ; olivine group, with magnesium replaced by iron toward fayalite; trimorphous with ringwoodite and wadsleyite; in dunite and metamorphosed dolomitic limestones.
Industry:Mining
An orthorhombic mineral, 4(PbCO<sub>3</sub>) ; aragonite group; adamantine; sp gr, 6.55; in oxidized and carbonated parts of lead-ore veins; a source of lead.
Industry:Mining
An orthorhombic mineral, 4(PbCO<sub>3</sub>) ; aragonite group; adamantine; sp gr, 6.55; in oxidized and carbonated parts of lead-ore veins; a source of lead.
Industry:Mining
An orthorhombic mineral, 4(PbCO<sub>3</sub>) ; aragonite group; adamantine; sp gr, 6.55; in oxidized and carbonated parts of lead-ore veins; a source of lead.
Industry:Mining
An orthorhombic mineral, 4(PbCO<sub>3</sub>) ; aragonite group; adamantine; sp gr, 6.55; in oxidized and carbonated parts of lead-ore veins; a source of lead.
Industry:Mining
An orthorhombic mineral, 4(PbCO<sub>3</sub>) ; aragonite group; adamantine; sp gr, 6.55; in oxidized and carbonated parts of lead-ore veins; a source of lead.
Industry:Mining