- المجال: Mining
- Number of terms: 33118
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- 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 ...
A trigonal mineral, Na<sub>14</sub>Ce<sub>6</sub>Mn<sub>+2</sub>Mn<sub>+3</sub>Fe<sub>2</sub>(Zr,Th)(Si<sub>6</sub>O<sub>18</sub>)<sub>2</sub>(PO<sub>4</sub>)<sub>7</sub>.3H<sub>2</sub>O .
Industry:Mining
A trigonal mineral, Na<sub>15</sub>(SO<sub>4</sub>)<sub>5</sub>F<sub>4</sub>Cl ; occurs embedded in clay associated with gaylussite and northupite in drill cores from Searles Lake, CA. Compare: schairerite
Industry:Mining
A trigonal mineral, Na<sub>2</sub>B<sub>4</sub>O<sub>5</sub>(OH)<sub>4</sub>.3H<sub>2</sub>O .
Industry:Mining
A trigonal mineral, Na<sub>2</sub>B<sub>4</sub>O<sub>5</sub>(OH)<sub>4</sub>.3H<sub>2</sub>O .
Industry:Mining
A trigonal mineral, Na<sub>2</sub>Ca(UO<sub>2</sub>)(CO<sub>3</sub>)<sub>3</sub>.6H<sub>2</sub>O ; bright yellow-green; secondary.
Industry:Mining
A trigonal mineral, Na<sub>2</sub>Ca<sub>2</sub>Si<sub>3</sub>O<sub>9</sub>; in nephelinite at Kivu, Republic of the Congo.
Industry:Mining
A trigonal mineral, Na<sub>2</sub>Mg(CO<sub>3</sub>)<sub>2</sub>; associated with trona, nahcolite, or in places searlesite, from oil-well cores in northeastern Utah.
Industry:Mining
A trigonal mineral, Na<sub>21</sub>(SO<sub>4</sub>)<sub>7</sub>F<sub>6</sub>Cl ; colorless; at Searles Lake, CA. Compare: galeite
Industry:Mining
A trigonal mineral, Na<sub>3</sub>Fe(SO<sub>4</sub>)<sub>3</sub>3H<sub>2</sub>O ; vitreous; soft; in the Atacama Desert, northern Chile. Formerly called ferronatrite.
Industry:Mining
