Mineral Specimen Images (U)

Mineral Specimen Images (U)
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Mineral Specimen Images (U) With 116 Images

Uchucchacuaite Image

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Uchucchacuaite: AgPb3MnSb5S12

Comments: Corroded grain of uchucchacuaite in matrix.
Location: Bera Basin #4 mine, King Co., Washington, USA. Scale: Crystal size 1 mm.
© Tom Loomis / Dakota Matrix

Uchucchacuaite Image

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Uchucchacuaite: AgPb3MnSb5S12

Comments: Corroded grain of uchucchacuaite in matrix.
Location: Bera Basin #4 mine, King Co., Washington, USA. Scale: Crystal size 1 mm.
© Tom Loomis / Dakota Matrix

Uhligite Image

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Uhligite: Ca3(Ti,Al,Zr)9O20

Comments: Black granular uhligite in syenite rock.
Location: near Lake Magadi, Rift Valley Province, Kenya. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Uhligite Image

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Uhligite: Ca3(Ti,Al,Zr)9O20

Comments: Black granular uhligite in syenite rock.
Location: near Lake Magadi, Rift Valley Province, Kenya. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Uklonskovite Image

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Uklonskovite: NaMg(SO4)F·2(H2O)

Comments: Minute crystals and crystalline uklonskovite.
Location: Pampa del Pique III, Antofagasta, Chile. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Uklonskovite Image

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Uklonskovite: NaMg(SO4)F·2(H2O)

Comments: Minute crystals and crystalline uklonskovite.
Location: Pampa del Pique III, Antofagasta, Chile. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ulexite Image

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Ulexite: NaCaB5O6(OH)6·5(H2O)

Comments: Tray of fibrous Ulexite fragments which have been cut and polished perpendicular to the fibers. This shows the fiber-optic "TV stone" effect which transmit images through the fragments.
Location: U.S. Borax Mine, Boron, Kramer District, Kern County, California, USA. Scale: Picture size 10 cm.
© Dave Barthelmy

Ulexite Image

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Ulexite: NaCaB5O6(OH)6·5(H2O)

Comments: Tray of fibrous Ulexite fragments which have been cut and polished perpendicular to the fibers. This shows the fiber-optic "TV stone" effect which transmit images through the fragments.
Location: U.S. Borax Mine, Boron, Kramer District, Kern County, California, USA. Scale: Picture size 10 cm.
© Dave Barthelmy

Ullmannite Image

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Ullmannite: NiSbS  
Tucekite: Ni9Sb2S8

Comments: Gray tucekite with ullmannite in white matrix.
Location: Adler mine, Eisern, Siegerland, Nordrhein-Westfalen, Germany. Scale: Picture Size 3.5 mm.
© Thomas Witzke

Ullmannite Image

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Ullmannite: NiSbS  
Tucekite: Ni9Sb2S8

Comments: Gray tucekite with ullmannite in white matrix.
Location: Adler mine, Eisern, Siegerland, Nordrhein-Westfalen, Germany. Scale: Picture Size 3.5 mm.
© Thomas Witzke

Ulrichite Image

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Ulrichite: CaCu(UO2)(PO4)2·4(H2O)

Comments: Green ulrichite microcrystal tuft on quartz.
Location: Lake Boga, Victoria, Australia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ulrichite Image

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Ulrichite: CaCu(UO2)(PO4)2·4(H2O)

Comments: Green ulrichite microcrystal tuft on quartz.
Location: Lake Boga, Victoria, Australia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ulrichite Image

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Ulrichite: CaCu(UO2)(PO4)2·4(H2O)

Comments: Green, acicular crystals of ulrichite on matrix. Co-type specimen (?) collected by the discoverer, Anthony Fraser.
Location: Lake Boga granite quarry, Lake Boga, Victoria, Australia. Scale: Picture size 2 mm.
© Paul M. Schumacher

Ulrichite Image

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Ulrichite: CaCu(UO2)(PO4)2·4(H2O)

Comments: Green, acicular crystals of ulrichite on matrix. Co-type specimen (?) collected by the discoverer, Anthony Fraser.
Location: Lake Boga granite quarry, Lake Boga, Victoria, Australia. Scale: Picture size 2 mm.
© Paul M. Schumacher

Ulvospinel Image

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Ulvospinel: TiFe++2O4

Comments: Black sub-metallic massive ulvöspinel.
Location: Otanmaki, Sout, Oulu, Finland. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ulvospinel Image

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Ulvospinel: TiFe++2O4

Comments: Black sub-metallic massive ulvöspinel.
Location: Otanmaki, Sout, Oulu, Finland. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Umangite Image

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Umangite: Cu3Se2  
Tyrrellite: (Cu,Co,Ni)3Se4

Comments: Bright metallic partial cubic tyrrellite crystal in altering umangite.
Location: Eagle Claims, near Hal Lake, Beaverlodge, Saskatchewan, Canada. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Umangite Image

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Umangite: Cu3Se2  
Tyrrellite: (Cu,Co,Ni)3Se4

Comments: Bright metallic partial cubic tyrrellite crystal in altering umangite.
Location: Eagle Claims, near Hal Lake, Beaverlodge, Saskatchewan, Canada. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Umangite Image

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Umangite: Cu3Se2  
Athabascaite: Cu5Se4  
Berzelianite: Cu2Se

Comments: Reflected light photomicrograph of umangite (pinkish), berzelianite (gray), athabascaite (small white areas in berzelianite), calcite (olive).
Location: Sierra de Umango, La Rioja, Argentin. Scale: Not Given.
© Jeff Weissman / Photographic Guide to Mineral Species

Umangite Image

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Umangite: Cu3Se2  
Berzelianite: Cu2Se

Comments: Black massive umangite intergrown with dark blue metallic berzelianite.
Location: Borsov, Bohemia, Vychodocesky, Czech Republic. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species
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