Mineral Specimen Images (G)

Mineral Specimen Images (G)

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Mineral Specimen Images (G) With 378 Images

Gabrielite Image

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Gabrielite: Tl2AgCu2As3S7

Comments: SEM picture of gabrielite showing the dominant (001) face with striation along a axis and (presumable) twinning along (100). (CanMin, v44:135).
Location: Lengenbach locality, at Binntal, Canton Valais, Switzerland. Scale: See Image.
© Canadian Mineralogist

Gabrielite Image

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Gabrielite: Tl2AgCu2As3S7

Comments: SEM picture of gabrielite showing the dominant (001) face with striation along a axis and (presumable) twinning along (100). (CanMin, v44:135).
Location: Lengenbach locality, at Binntal, Canton Valais, Switzerland. Scale: See Image.
© Canadian Mineralogist

Gabrielsonite Image

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Gabrielsonite: PbFe++(AsO4)(OH)

Comments: Jet black, lustrous crystal grain, showing no faces, fractured to about 0.75mm with white pectolite-hematite matrix.
Location: Langban, Varmland, Sweden. Scale: 2.5 x 1.5 x 1.5cm.
© Tom Loomis / Dakota Matrix

Gabrielsonite Image

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Gabrielsonite: PbFe++(AsO4)(OH)

Comments: Jet black, lustrous crystal grain, showing no faces, fractured to about 0.75mm with white pectolite-hematite matrix.
Location: Langban, Varmland, Sweden. Scale: 2.5 x 1.5 x 1.5cm.
© Tom Loomis / Dakota Matrix

Gadolinite-(Ce) Image

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Gadolinite-(Ce): (Ce,La,Nd,Y)2Fe++Be2Si2O10

Comments: Sharp, well crystallized single crystal of brown gadolinite.
Location: Buer, Bjørkedalen, Porsgrunn, Telemark, Norway. Scale: 18x14x8 mm.
© John Betts - Fine Minerals

Gadolinite-(Ce) Image

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Gadolinite-(Ce): (Ce,La,Nd,Y)2Fe++Be2Si2O10

Comments: Sharp, well crystallized single crystal of brown gadolinite.
Location: Buer, Bjørkedalen, Porsgrunn, Telemark, Norway. Scale: 18x14x8 mm.
© John Betts - Fine Minerals

Gadolinite-(Y) Image

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Gadolinite-(Y): Y2Fe++Be2Si2O10  
Calciogadolinite: CaREE(Fe+++)Be2Si2O10

Comments: Black vitreous, metamict massive gadolinite-(Y) also known as calcian gadolinite.
Location: Ytterøya Mine, Røvika, Ytterøya (island), Levanger, Nord-Trondelag, Norway. Scale: See Image.
© Rruff Database

Gadolinite-(Y) Image

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Gadolinite-(Y): Y2Fe++Be2Si2O10  
Calciogadolinite: CaREE(Fe+++)Be2Si2O10

Comments: Black vitreous, metamict massive gadolinite-(Y) also known as calcian gadolinite.
Location: Ytterøya Mine, Røvika, Ytterøya (island), Levanger, Nord-Trondelag, Norway. Scale: See Image.
© Rruff Database

Gagarinite-(Y) Image

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Gagarinite-(Y): NaCaY(F,Cl)6

Comments: Brownish to gray crystals of gagarinite-(Y) in matrix.
Location: Gjerdingen, Jevnaker, Oppland, Norway. Scale: Picture size 3 mm.
© Thomas Witzke / Abraxas-Verlag

Gagarinite-(Y) Image

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Gagarinite-(Y): NaCaY(F,Cl)6

Comments: Brownish to gray crystals of gagarinite-(Y) in matrix.
Location: Gjerdingen, Jevnaker, Oppland, Norway. Scale: Picture size 3 mm.
© Thomas Witzke / Abraxas-Verlag

Gageite Image

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Gageite: (Mn,Mg,Zn)42Si16O54(OH)40

Comments: Preserved sprays of inesite completely replaced by tan-colored gageite crystals.
Location: N'Chwaning Mine, Kalahari Manganese Field, Northern Cape Province, South Africa. Scale: 5 x 4.6 cm.
© John Veevaert

Gageite Image

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Gageite: (Mn,Mg,Zn)42Si16O54(OH)40

Comments: Preserved sprays of inesite completely replaced by tan-colored gageite crystals.
Location: N'Chwaning Mine, Kalahari Manganese Field, Northern Cape Province, South Africa. Scale: 5 x 4.6 cm.
© John Veevaert

Gahnite Image

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Gahnite: ZnAl2O4

Comments: Optical micrograph of gahnite (blue) + Na-Ca-Li mica pseudomorph after staurolite in calcite matrix pigmented with brownish Fe-(hydr)oxide. (AmMin, 88:794).
Location: Diaspore-bearing metabauxite from East Samos (Greece). Scale: See Image.
© American Mineralogist

Gahnite Image

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Gahnite: ZnAl2O4

Comments: Deep blue octahedral crystals of gahnite in quartz.
Location: Franklin, Sussex County, New Jersey, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Gahnite Image

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Gahnite: ZnAl2O4

Comments: Deep blue octahedral crystals of gahnite in quartz.
Location: Franklin, Sussex County, New Jersey, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Gahnite Image

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Gahnite: ZnAl2O4

Comments: Optical micrograph of gahnite (blue) + Na-Ca-Li mica pseudomorph after staurolite in calcite matrix pigmented with brownish Fe-(hydr)oxide. (AmMin, 88:794).
Location: Diaspore-bearing metabauxite from East Samos (Greece). Scale: See Image.
© American Mineralogist

Gaidonnayite Image

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Gaidonnayite: Na2ZrSi3O9·2(H2O)

Comments: Translucent tan spherical gaidonnayite crystal aggregates.
Location: Mont Saint Hilaire, Rouville County, Quebec, Canada. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Gaidonnayite Image

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Gaidonnayite: Na2ZrSi3O9·2(H2O)

Comments: Translucent tan spherical gaidonnayite crystal aggregates.
Location: Mont Saint Hilaire, Rouville County, Quebec, Canada. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Gainesite Image

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Gainesite: Na2Zr2Be(PO4)4·1-2(H2O)

Comments: Fragment of intensely blue colored gainesite on paper.
Location: Nevel Quarry (Twin Tunnels; United Feldspar Quarry), Newry, Oxford Co., Maine, USA. Scale: Fragment Size 0.2 mm.
© Jeff Weissman / Photographic Guide to Mineral Species

Gainesite Image

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Gainesite: Na2Zr2Be(PO4)4·1-2(H2O)

Comments: Fragment of intensely blue colored gainesite on paper.
Location: Nevel Quarry (Twin Tunnels; United Feldspar Quarry), Newry, Oxford Co., Maine, USA. Scale: Fragment Size 0.2 mm.
© Jeff Weissman / Photographic Guide to Mineral Species

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