- 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, MnPO<sub>4</sub>; forms a series with heterosite; deep red or reddish purple; forms small, irregular masses as an alteration product of lithiophilite and triphylite; at Pala, CA; Hill City, SD; Newry, ME; and the Erongo Mountains, Namibia.
Industry:Mining
An orthorhombic mineral, MnTa<sub>2</sub>O<sub>6</sub>; dimorphous with manganotapiolite; forms series with manganocolumbite and with ferrotantalite.
Industry:Mining
An orthorhombic mineral, Na<sub>16</sub>(Al<sub>16</sub>Si<sub>24</sub>O<sub>80</sub>).16H<sub>2</sub>O; zeolite group, which may contain appreciable calcium; dimorphous with tetranatrolite; forms acicular to slender prismatic crystals in cavities and veins, esp. in mafic and alkaline igneous rocks.
Industry:Mining
An orthorhombic mineral, Na<sub>16</sub>(Al<sub>16</sub>Si<sub>24</sub>O<sub>80</sub>).16H<sub>2</sub>O; zeolite group, which may contain appreciable calcium; dimorphous with tetranatrolite; forms acicular to slender prismatic crystals in cavities and veins, esp. in mafic and alkaline igneous rocks.
Industry:Mining
An orthorhombic mineral, Na<sub>2</sub>BeSi<sub>2</sub>O<sub>6</sub>; occurs on the Kola Peninsula, Russia.
Industry:Mining
An orthorhombic mineral, Na<sub>2</sub>Ca(CO<sub>3</sub>)<sub>2</sub>.2H<sub>2</sub>O; forms colorless to white short prisms or tablets; in nonmarine evaporites, particularly the Green River oil shales in Wyoming, and Borax Lake, CA.
Industry:Mining
An orthorhombic mineral, Na<sub>2</sub>Ca<sub>5</sub>Al<sub>12</sub>Si<sub>20</sub>O<sub>64</sub>.27H<sub>2</sub>O ; zeolite group; pseudotetragonal; forms radiating aggregates in amygdules in basalts, commonly associated with other zeolites, e.g., chabazite, thomsonite, and levyne; at the Garron Plateau, County Antrim, Ireland, and 22 localities in eastern Iceland.
Industry:Mining
An orthorhombic mineral, Na<sub>2</sub>CaAl<sub>4</sub>Si<sub>6</sub>O<sub>20</sub>.7H<sub>2</sub>O ; zeolite group; forms white, finely fibrous, radiating spherules in cavities in basalt, and as an alteration of nepheline.
Industry:Mining
An orthorhombic mineral, Na<sub>2</sub>CO<sub>3</sub>.H<sub>2</sub>O ; forms flat, white, water-soluble crystals in some lakes and alkali soils, also a saline residue.
Industry:Mining
An orthorhombic mineral, Na<sub>2</sub>Fe(SO<sub>4</sub>)<sub>2</sub>(OH).3H<sub>2</sub>O ; soft; orange to straw-yellow.
Industry:Mining
