Mineral Specimen Images (U)

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

Ussingite Image

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Ussingite: Na2AlSi3O8(OH)  
Gerasimovskite: (Mn,Ca)(Nb,Ti)5O12·9(H2O) (?)

Comments: Pale tan gerasimovskite pseudomorphous after epistolite crystal, in purple ussingite.
Location: Lovozero Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ussingite Image

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Ussingite: Na2AlSi3O8(OH)  
Cuprostibite: Cu2(Sb,Tl)

Comments: Massive ussingite hosting grains of the very rare copper antimony-thallium bearing cuprostibite.
Location: Ilimaussaq, Tasseq, Greenland. Scale: 4.8 x3.4 cm.
© John Veevaert

Ussingite Image

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Ussingite: Na2AlSi3O8(OH)  
Vuonnemite: Na11Nb2TiSi4O12(PO4)2O5F2

Comments: Massive, violet colored ussingite with a single bladed partial crystal of white vuonnemite 1.5 cm in length.
Location: Mt. Karnasurf, Lovozero, Russia. Scale: 4.2 x 3 cm.
© John Veevaert

Ussingite Image

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Ussingite: Na2AlSi3O8(OH)  
Gerasimovskite: (Mn,Ca)(Nb,Ti)5O12·9(H2O) (?)

Comments: Pale tan gerasimovskite pseudomorphous after epistolite crystal, in purple ussingite.
Location: Lovozero Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Utahite Image

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Utahite: Cu5Zn3(Te++++++O4)4(OH)8·7(H2O)

Comments: Blue utahite grain in matrix.
Location: Centennial Eureka Mine, Tintic District (East Tintic Mountains), Juab Co., Utah, USA. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag

Utahite Image

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Utahite: Cu5Zn3(Te++++++O4)4(OH)8·7(H2O)

Comments: Blue utahite grain in matrix.
Location: Centennial Eureka Mine, Tintic District (East Tintic Mountains), Juab Co., Utah, USA. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag

Uvanite Image

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Uvanite: U++++++2V+++++6O21·15(H2O)

Comments: Yellowish brown uvanite coating on sandstone.
Location: Temple Rock, Emery County, Utah, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Uvanite Image

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Uvanite: U++++++2V+++++6O21·15(H2O)

Comments: Yellowish brown uvanite coating on sandstone.
Location: Temple Rock, Emery County, Utah, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Uvarovite Image

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Uvarovite: Ca3Cr2(SiO4)3

Comments: Green uvarovite (garnet) crystal group.
Location: Mokkivaara mine, Outokumpu, Finland. Scale: 1.3x1.2x1 cm.
© Fabre Minerals

Uvarovite Image

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Uvarovite: Ca3Cr2(SiO4)3

Comments: Green uvarovite (garnet) crystal group.
Location: Mokkivaara mine, Outokumpu, Finland. Scale: 1.3x1.2x1 cm.
© Fabre Minerals

Uvite Image

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Uvite: (Ca,Na)(Mg,Fe++)3Al5Mg(BO3)3Si6O18(OH,F)4

Comments: Reddish brown, prismatic uvite crystals.
Location: Brumado, Bahia, Brazil. Scale: 4.5 x 5.5 cm.
© Fabre Minerals

Uvite Image

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Uvite: (Ca,Na)(Mg,Fe++)3Al5Mg(BO3)3Si6O18(OH,F)4

Comments: Reddish brown, prismatic uvite crystals.
Location: Brumado, Bahia, Brazil. Scale: 4.5 x 5.5 cm.
© Fabre Minerals

Uytenbogaardtite Image

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Uytenbogaardtite: Ag3AuS2

Comments: Gray crystal grains of uytenbogaardtite to 1mm throughout matrix with electrum.
Location: Bullfrog mine, Nye County, Nevada, USA. Scale: Slab 1cm thick 6x6cm.
© Tom Loomis / Dakota Matrix

Uytenbogaardtite Image

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Uytenbogaardtite: Ag3AuS2

Comments: Gray crystal grains of uytenbogaardtite to 1mm throughout matrix with electrum.
Location: Bullfrog mine, Nye County, Nevada, USA. Scale: Slab 1cm thick 6x6cm.
© Tom Loomis / Dakota Matrix

Uzonite Image

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Uzonite: As4S5

Comments: Yellow powdery uzonite encrustation.
Location: Uzon Volcano, Kamchatka District, Russian Far East, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Uzonite Image

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Uzonite: As4S5

Comments: Yellow powdery uzonite encrustation.
Location: Uzon Volcano, Kamchatka District, Russian Far East, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species
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