- 行业: 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 ...
An orthorhombic mineral, 4((Zn,Cu)<sub>5</sub>(CO<sub>3</sub>)<sub>2</sub>(OH)<sub>6</sub>) ; forms soft scaly greenish-blue crusts in oxidized zones of copper-zinc ore deposits; a guide to zinc ore.
Industry:Mining
An orthorhombic mineral, 4(Bi<sub>2</sub>S<sub>3</sub>) ; metallic; lead-gray to tin-white with an iridescent tarnish; commonly associated with other ore minerals; a source of bismuth.
Industry:Mining
An orthorhombic mineral, 4(Bi<sub>2</sub>S<sub>3</sub>) ; metallic; lead-gray to tin-white with an iridescent tarnish; commonly associated with other ore minerals; a source of bismuth.
Industry:Mining
An orthorhombic mineral, 4(Bi<sub>2</sub>S<sub>3</sub>) ; metallic; lead-gray to tin-white with an iridescent tarnish; commonly associated with other ore minerals; a source of bismuth.
Industry:Mining
An orthorhombic mineral, 4(CaAl<sub>2</sub>Si<sub>2</sub>O<sub>7</sub>(OH)<sub>2</sub>.H<sub>2</sub>O) ; dimorphous with partheite; pale blue; Mohs hardness, 8; in high-pressure, low-temperature schists.
Industry:Mining
An orthorhombic mineral, 4(Cu<sub>2</sub>Cl(OH)<sub>3</sub>) ; trimorphous with paratacamite and botallackite; grass green, in fine crystal aggregates, fibrous or columnar; a supergene 184 mineral in oxidized zones of copper deposits in desert regions; a source of copper.
Industry:Mining
An orthorhombic mineral, 4(Cu<sub>2</sub>Cl(OH)<sub>3</sub>) ; trimorphous with paratacamite and botallackite; grass green, in fine crystal aggregates, fibrous or columnar; a supergene 184 mineral in oxidized zones of copper deposits in desert regions; a source of copper.
Industry:Mining
An orthorhombic mineral, 4(Cu<sub>3</sub>SO<sub>4</sub>(OH)<sub>4</sub>) ; forms emerald to blackish-green striated crystals or parallel aggregates; may be reniform or massive; in oxidized parts of copper veins; an ore of copper in desert regions.
Industry:Mining
An orthorhombic mineral, 4(Cu<sub>3</sub>SO<sub>4</sub>(OH)<sub>4</sub>) ; forms emerald to blackish-green striated crystals or parallel aggregates; may be reniform or massive; in oxidized parts of copper veins; an ore of copper in desert regions.
Industry:Mining
An orthorhombic mineral, 4(Fe<sub>2</sub>SiO<sub>4</sub>) ; olivine group, with iron replaced by magnesum toward forsterite or by manganese toward tephroite; greenish-yellow to yellowish-amber; a common rock-forming mineral in iron-rich metasediments, quartz syenites and granites, ferrogabbro, and some felsic and alkaline volcanic rocks.
Industry:Mining
