Mineral Specimen Images (B)

Mineral Specimen Images (B)
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Mineral Specimen Images (B) With 622 Images

Brunogeierite Image

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Brunogeierite: (Ge++,Fe++)Fe+++2O4  
Stottite: Fe++Ge(OH)6

Comments: Brownish gray, cubic (tetartoidal) brunogeierite crystals with earthy gray stottite and zincian siderite matrix.
Location: Tsumeb, Namibia. Scale: Cabinent Size.
© William Pinch

Brunogeierite Image

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Brunogeierite: (Ge++,Fe++)Fe+++2O4  
Stottite: Fe++Ge(OH)6

Comments: Brownish gray, cubic (tetartoidal) brunogeierite crystals with earthy gray stottite and zincian siderite matrix.
Location: Tsumeb, Namibia. Scale: Cabinent Size.
© William Pinch

Brushite Image

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Brushite: CaHPO4·2(H2O)

Comments: Tan coatings of brushite on calcite.
Location: Oberschleme, Erzgebirge Mountains, Sachsen, Germany. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Brushite Image

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Brushite: CaHPO4·2(H2O)

Comments: Tan coatings of brushite on calcite.
Location: Oberschleme, Erzgebirge Mountains, Sachsen, Germany. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Buddingtonite Image

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Buddingtonite: (NH4)AlSi3O8·0.5(H2O)

Comments: Chalky massive buddingtonite.
Location: Sharon Heights, Menlo Park, San Mateo County, California, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Buddingtonite Image

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Buddingtonite: (NH4)AlSi3O8·0.5(H2O)

Comments: Chalky massive buddingtonite.
Location: Sharon Heights, Menlo Park, San Mateo County, California, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Buergerite Image

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Buergerite: NaFe+++3Al6(BO3)3Si6O21F

Comments: Doubly-terminated brownish buergerite tourmaline crystals on matrix.
Location: Mexquitic, San Luis Potosí, Mexico. Scale: 26x15x13 mm.
© John Betts - Fine Minerals

Buergerite Image

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Buergerite: NaFe+++3Al6(BO3)3Si6O21F

Comments: Doubly-terminated brownish buergerite tourmaline crystals on matrix.
Location: Mexquitic, San Luis Potosí, Mexico. Scale: 26x15x13 mm.
© John Betts - Fine Minerals

Bukovite Image

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Bukovite: Tl2Cu3FeSe4

Comments: Silvery metallic minute aggregates of bukovite in white calcite (polished mount).
Location: Predborice, Stredocesky, Czech Republic. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Bukovite Image

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Bukovite: Tl2Cu3FeSe4

Comments: Silvery metallic minute aggregates of bukovite in white calcite (polished mount).
Location: Predborice, Stredocesky, Czech Republic. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Bukovskyite Image

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Bukovskyite: Fe+++2(AsO4)(SO4)(OH)·7(H2O)  
Zykaite: Fe+++4(AsO4)3(SO4)(OH)·15(H2O)

Comments: Pale beige acicular crystals of bukovskýite with white zykaite.
Location: Christbescherung Mine, Großvoigtsberg, Freiberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 1.3 mm.
© Thomas Witzke / Abraxas-Verlag

Bukovskyite Image

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Bukovskyite: Fe+++2(AsO4)(SO4)(OH)·7(H2O)  
Zykaite: Fe+++4(AsO4)3(SO4)(OH)·15(H2O)

Comments: Pale beige acicular crystals of bukovskýite with white zykaite.
Location: Christbescherung Mine, Großvoigtsberg, Freiberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 1.3 mm.
© Thomas Witzke / Abraxas-Verlag

Bultfonteinite Image

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Bultfonteinite: Ca2SiO2(OH,F)4  
Oyelite: Ca10B2Si8O29·12(H2O)

Comments: White encrustation of oyelite covering brownish botryoidal bultfonteinite.
Location: N'Chwaning Mine, Kalahari Manganese Field, Northern Cape Province, South Africa. Scale: 2 x 4 cm.
© John Veevaert

Bultfonteinite Image

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Bultfonteinite: Ca2SiO2(OH,F)4  
Poldervaartite: (Ca,Mn++)2SiO3(OH)2

Comments: Bow-tie clusters of white, acicular bultfonteinite and blocky, beige-colored poldervaartite on matrix.
Location: N'Chwaning mine, South Africa. Scale: picture size 4 cm.
© John Veevaert

Bultfonteinite Image

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Bultfonteinite: Ca2SiO2(OH,F)4

Comments: Rounded, spherical aggregation of acicular bultfonteinite crystals.
Location: N'Chwaning Mine, Kalahari Manganese Field, Northern Cape Province, South Africa. Scale: 8.5 x 4.6 cm.
© John Veevaert

Bultfonteinite Image

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Bultfonteinite: Ca2SiO2(OH,F)4  
Poldervaartite: (Ca,Mn++)2SiO3(OH)2

Comments: Bow-tie clusters of white, acicular bultfonteinite and blocky, beige-colored poldervaartite on matrix.
Location: N'Chwaning mine, South Africa. Scale: picture size 4 cm.
© John Veevaert

Bultfonteinite Image

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Bultfonteinite: Ca2SiO2(OH,F)4

Comments: Rounded, spherical aggregation of acicular bultfonteinite crystals.
Location: N'Chwaning Mine, Kalahari Manganese Field, Northern Cape Province, South Africa. Scale: 8.5 x 4.6 cm.
© John Veevaert

Bultfonteinite Image

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Bultfonteinite: Ca2SiO2(OH,F)4  
Oyelite: Ca10B2Si8O29·12(H2O)

Comments: White encrustation of oyelite covering brownish botryoidal bultfonteinite.
Location: N'Chwaning Mine, Kalahari Manganese Field, Northern Cape Province, South Africa. Scale: 2 x 4 cm.
© John Veevaert

Bunsenite Image

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Bunsenite: NiO

Comments: Greenish earthy bunsenite.
Location: Johanngeorgenstadt, Erzgebirge, Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Bunsenite Image

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Bunsenite: NiO

Comments: Greenish earthy bunsenite.
Location: Johanngeorgenstadt, Erzgebirge, Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag
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