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Bokite : (Al,Fe3+)1.3[(V5+,V4+,Fe3+)4O10]2 · 7.5H2O, Roscoelite : K(V,Al)2[(OH)2|AlSi3O10], Baryte : BaSO4 | |
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Balasauskandyk V Deposit, Karatau Range, Ongtüstik Qazaqstan Oblysy (Southern-Kazakhstan Oblast'), Kazakhstan Agregates of black tabular bokite crystals grow over yellowish roscoelite layer cover transparent baryte crystals in the fissure of V-bearing black shists. FOV is ~5x4 mm. Pavel M. Kartashov collection and photo. |
| © Pavel M. Kartashov | Photo ID: 115422 View Count: 214 |
Bokite : (Al,Fe3+)1.3[(V5+,V4+,Fe3+)4O10]2 · 7.5H2O, Corvusite : V7O20·nH2O, Roscoelite : K(V,Al)2[(OH)2|AlSi3O10], Baryte : BaSO4 | |
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Balasauskandyk V Deposit, Karatau Range, Ongtüstik Qazaqstan Oblysy (Southern-Kazakhstan Oblast'), Kazakhstan Agregates of shining black tabular bokite crystals grow over yellowish roscoelite layer covering transparent baryte crystals in the fissure of V-bearing black shists. Associating mineral is dull black earthy corvusite partially replaced by yellow fervanite. FOV is ~10x8 mm. Pavel M. Kartashov collection and photo. |
| © Pavel M. Kartashov | Photo ID: 115423 View Count: 130 |
Bokite : (Al,Fe3+)1.3[(V5+,V4+,Fe3+)4O10]2 · 7.5H2O, Corvusite : V7O20·nH2O, Fervanite : Fe4(VO4)4·5H2O | |
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Balasauskandyk V Deposit, Karatau Range, Ongtüstik Qazaqstan Oblysy (Southern-Kazakhstan Oblast'), Kazakhstan 1 mm size spherulite agregate of black tabular bokite crystals partially replaced by yellow fervanite. Associating mineral is black earthy corvusite also partially replaced by fervanite. FOV is ~5x4 mm. Pavel M. Kartashov collection and photo |
| © Pavel M. Kartashov | Photo ID: 115421 View Count: 93 |
Bokite : (Al,Fe3+)1.3[(V5+,V4+,Fe3+)4O10]2 · 7.5H2O | |
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Monument No. 2 Mine, Monument No. 2 channel, Monument Valley, Navajo Indian Reservation, Apache Co., Arizona, USA Crudely formed crystals, to 0.1 cm, in divergent aggregates. S052-14 #1241# |
| © 2008, JGW | Photo ID: 150168 View Count: 135 |
Bokite : (Al,Fe3+)1.3[(V5+,V4+,Fe3+)4O10]2 · 7.5H2O | |
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VanNavSan Claim (Van Nav Sand claim), Gibellini District, Eureka Co., Nevada, USA Width of field is 1.7 mm. Collection of Jesse Crawford. The depth of field has been enhanced using Helicon Focus (23 exposures). Equipment: Nikon D-100 digital camera on a homemade microscope. |
| © 2008 Jesse Crawford | Photo ID: 178155 View Count: 80 |
Bokite : (Al,Fe3+)1.3[(V5+,V4+,Fe3+)4O10]2 · 7.5H2O, Vashegyite : Al11[(OH)6|(PO4)9] · 38H2O | |
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VanNavSan Claim (Van Nav Sand claim), Gibellini District, Eureka Co., Nevada, USA Width of field is 2.5 mm. Collection of Jesse Crawford. The depth of field has been enhanced using Helicon Focus (10 exposures). Equipment: Nikon D-100 digital camera on a homemade microscope. Black bokite with white vashegyite microcrystals |
| © 2008 Jesse Crawford | Photo ID: 178157 View Count: 77 |
Bokite : (Al,Fe3+)1.3[(V5+,V4+,Fe3+)4O10]2 · 7.5H2O | |
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VanNavSan Claim (Van Nav Sand claim), Gibellini District, Eureka Co., Nevada, USA dimension area mm. 4 x 4 photo and collection Luigi Chiappino |
| © luigi chiappino | Photo ID: 235157 View Count: 22 |
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