Post by 1dave on Apr 15, 2018 3:01:23 GMT -5
Roscoelite is a green mineral from the mica group that contains vanadium, Named For British scientist Henry Enfield Roscoe (1833-1915), of Manchester, England, who first prepared pure vanadium.
It comes in TWO varieties"
Mineral deposits that contain roscoelite, are either gold-silver-tellurium low temperature epithermal deposits where it occurs along with quartz, fluorite, pyrite and carbonates,
Or oxidized low temperature uranium-vanadium ores in sedimentary rocks, where it occurs with corvusite, hewettite, carnotite and tyuyamunite.
Roscoelite is a vanadium mica metamorphic mineral that forms a series with Muscovite.
Mica formations are associated with volcanoes and hydrothermal vents.
Occurrence: Massive, as impregnations, as minute scales, in druses, rosettes, or fan-shaped groups; fibrous and in felted aggregates.
An early-stage gangue mineral in
1. low-temperature epithermal Au-Ag-Te deposits;
2. from the oxidized portions of low-temperature sedimentary U-V ores.
Association:
1. quartz, pyrite, carbonates, fluorite, gold (Au-Ag-Te mineral association);
2. corvusite, hewettite, carnotite, tyuyamunite (U-V mineral association).
Distribution: In the USA, from the Stuckslager mine, Lotus, El Dorado Co., California; in Colorado, from Cripple Creek, Teller Co., LaPlata district, LaPlata Co., Magnolia district, Boulder Co., the Gateway district, Mesa Co., in the Uravan and Paradox, Bull Canyon, and Slick Rock districts, in Montrose, San Miguel, and Dolores Cos. From the Spotted Horse mine, Maiden, Fergus Co., Montana; the Baker, Mammoth, and North Polemines, Baker Co., Oregon; in the Monument No.2 mine, Apache Co., and Monument No.1 and Mitten No.2 mines, Navajo Co., Arizona; from the Gold strike mine, Lynn district, Eureka Co., Nevada.
At the Yamatomine, Amamioshima Island, Kagoshima Prefecture, Japan.
From Kalgoorlie, Western Australia and Radium Hill, Olary, South Australia. In the Emperormine, Vatukoula, Viti Levu, Fiji Islands. At Horni Kalna, Czech Republic. From the Mounana mine, Gabon.
It comes in TWO varieties"
Mineral deposits that contain roscoelite, are either gold-silver-tellurium low temperature epithermal deposits where it occurs along with quartz, fluorite, pyrite and carbonates,
Or oxidized low temperature uranium-vanadium ores in sedimentary rocks, where it occurs with corvusite, hewettite, carnotite and tyuyamunite.
Roscoelite is a vanadium mica metamorphic mineral that forms a series with Muscovite.
Mica formations are associated with volcanoes and hydrothermal vents.
Occurrence: Massive, as impregnations, as minute scales, in druses, rosettes, or fan-shaped groups; fibrous and in felted aggregates.
An early-stage gangue mineral in
1. low-temperature epithermal Au-Ag-Te deposits;
2. from the oxidized portions of low-temperature sedimentary U-V ores.
Association:
1. quartz, pyrite, carbonates, fluorite, gold (Au-Ag-Te mineral association);
2. corvusite, hewettite, carnotite, tyuyamunite (U-V mineral association).
Distribution: In the USA, from the Stuckslager mine, Lotus, El Dorado Co., California; in Colorado, from Cripple Creek, Teller Co., LaPlata district, LaPlata Co., Magnolia district, Boulder Co., the Gateway district, Mesa Co., in the Uravan and Paradox, Bull Canyon, and Slick Rock districts, in Montrose, San Miguel, and Dolores Cos. From the Spotted Horse mine, Maiden, Fergus Co., Montana; the Baker, Mammoth, and North Polemines, Baker Co., Oregon; in the Monument No.2 mine, Apache Co., and Monument No.1 and Mitten No.2 mines, Navajo Co., Arizona; from the Gold strike mine, Lynn district, Eureka Co., Nevada.
At the Yamatomine, Amamioshima Island, Kagoshima Prefecture, Japan.
From Kalgoorlie, Western Australia and Radium Hill, Olary, South Australia. In the Emperormine, Vatukoula, Viti Levu, Fiji Islands. At Horni Kalna, Czech Republic. From the Mounana mine, Gabon.
