- 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 ornamental stone, consisting mainly of chromojadeite. From Manokwari, New Guinea.
Industry:Mining
An orogenic belt with an imposed curvature or sharp bend, interpreted by Carey (1958) as a result of horizontal bending of the crust, or deformation in plan.
Industry:Mining
An orthoclase-bearing porphyritic intrusive rock, such as granite or syenite. The term is sometimes restricted to rocks containing more than 90% orthoclase. Not recommended usage.
Industry:Mining
An orthorhombic and monoclinic mineral, CaFe<sub>2</sub>FeSi<sub>2</sub>O<sub>7</sub>O(OH) ; in prisms with vertically striated faces; compact, massive, or fibrous; in some magnetite orebodies, in zinc and copper ores, in contact deposits in dolomitic limestone, and in sodalite syenite near Julianehaab, Greenland.
Industry:Mining
An orthorhombic and monoclinic mineral, CaFe<sub>2</sub>FeSi<sub>2</sub>O<sub>7</sub>O(OH) ; in prisms with vertically striated faces; compact, massive, or fibrous; in some magnetite orebodies, in zinc and copper ores, in contact deposits in dolomitic limestone, and in sodalite syenite near Julianehaab, Greenland.
Industry:Mining
An orthorhombic and monoclinic mineral, CaFe<sub>2</sub>FeSi<sub>2</sub>O<sub>7</sub>O(OH) ; in prisms with vertically striated faces; compact, massive, or fibrous; in some magnetite orebodies, in zinc and copper ores, in contact deposits in dolomitic limestone, and in sodalite syenite near Julianehaab, Greenland.
Industry:Mining
An orthorhombic hydrocarbon mineral, 4(C<sub>22</sub>H<sub>14</sub>) ; soft; greenish yellow to light brown with bluish fluorescence; mixed with clay, pyrite, and gypsum associated with cinnabar in the Idria region, Yugoslavia. Its combustibility gave rise to the term "inflammable cinnabar."
Industry:Mining
An orthorhombic hydrocarbon mineral, 4(C<sub>22</sub>H<sub>14</sub>) ; soft; greenish yellow to light brown with bluish fluorescence; mixed with clay, pyrite, and gypsum associated with cinnabar in the Idria region, Yugoslavia. Its combustibility gave rise to the term "inflammable cinnabar."
Industry:Mining
An orthorhombic mineral consisting of an aluminum silicate that is resistant to corrosion and heat; used as a refractory. Also known as porcelainite.
Industry:Mining
