Mineral Specimen Images (G)

Mineral Specimen Images (G)
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Mineral Specimen Images (G) With 378 Images

Grunerite Image

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Grunerite: [ ]Fe++7Si8O22(OH)2

Comments: Olive green fibrous crystal aggregates of grunerite in rock matrix.
Location: Michigamme, Iron County, Michigan, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Grunerite Image

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Grunerite: [ ]Fe++7Si8O22(OH)2

Comments: Olive green fibrous crystal aggregates of grunerite in rock matrix.
Location: Michigamme, Iron County, Michigan, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Gruzdevite Image

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Gruzdevite: Cu6Hg3Sb4S12

Comments: Black aggregates of gruzdevite in matrix.
Location: Moctezuma mine, Sonora, Mexico. Scale: Picture Size 1 cm.
© Rhonda Spencer / ASDM Sonoran Desert Digital Library

Gruzdevite Image

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Gruzdevite: Cu6Hg3Sb4S12

Comments: Black aggregates of gruzdevite in matrix.
Location: Moctezuma mine, Sonora, Mexico. Scale: Picture Size 1 cm.
© Rhonda Spencer / ASDM Sonoran Desert Digital Library

Guanacoite Image

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Guanacoite: (Cu,Mg)2Mg2(Mg,Cu)(OH)4(H2O)4(AsO4)2

Comments: Deep blue, bladed, glassy crystals of guanacoite to 0.75mm lining vugs of arhbarite..
Location: El Guanaco Mine, Guanaco, Taltal, Antofagasta Province, Chile. Scale: Picture Size 5mm.
© Tom Loomis / Dakota Matrix

Guanacoite Image

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Guanacoite: (Cu,Mg)2Mg2(Mg,Cu)(OH)4(H2O)4(AsO4)2

Comments: Deep blue, bladed, glassy crystals of guanacoite to 0.75mm lining vugs of arhbarite..
Location: El Guanaco Mine, Guanaco, Taltal, Antofagasta Province, Chile. Scale: Picture Size 5mm.
© Tom Loomis / Dakota Matrix

Guanajuatite Image

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Guanajuatite: Bi2Se3

Comments: Prismatic crystalline guanajuatite, altering to a blue crust, in white calcite.
Location: Falun, Kopparberg, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Guanajuatite Image

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Guanajuatite: Bi2Se3

Comments: Prismatic crystalline guanajuatite, altering to a blue crust, in white calcite.
Location: Falun, Kopparberg, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Guarinoite Image

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Guarinoite: (Zn,Co,Ni)6(SO4)(OH,Cl)10·5(H2O)

Comments: Pale pink microcrystalline crust of guarinoite on matrix.
Location: Cap Garonne mine, Var, France. Scale: Thumbnail.
© Tom Loomis / Dakota Matrix

Guarinoite Image

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Guarinoite: (Zn,Co,Ni)6(SO4)(OH,Cl)10·5(H2O)

Comments: Pale pink microcrystalline crust of guarinoite on matrix.
Location: Cap Garonne mine, Var, France. Scale: Thumbnail.
© Tom Loomis / Dakota Matrix

Gudmundite Image

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Gudmundite: FeSbS

Comments: Steel gray metallic crystalline gudmundite, tarnishing, massive in rock.
Location: Pezinock, Zapadoslovensky, Slovakia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Gudmundite Image

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Gudmundite: FeSbS

Comments: Steel gray metallic crystalline gudmundite, tarnishing, massive in rock.
Location: Pezinock, Zapadoslovensky, Slovakia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Guerinite Image

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Guerinite: Ca5(AsO3OH)2(AsO4)2·9(H2O)

Comments: White blebs of guerinite on erythrite.
Location: Wechsel Schacht, Richelsdorf, Hesse, Germany. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Guerinite Image

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Guerinite: Ca5(AsO3OH)2(AsO4)2·9(H2O)

Comments: White blebs of guerinite on erythrite.
Location: Wechsel Schacht, Richelsdorf, Hesse, Germany. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Guildite Image

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Guildite: CuFe+++(SO4)2(OH)·4(H2O)  
Magnesiocopiapite: MgFe+++4(SO4)6(OH)2·20(H2O)

Comments: Brown granular guildite with greenish yellow magnesiocopiapite.
Location: United Verde Mine, Jerome, Yavapai County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Guildite Image

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Guildite: CuFe+++(SO4)2(OH)·4(H2O)  
Magnesiocopiapite: MgFe+++4(SO4)6(OH)2·20(H2O)

Comments: Brown granular guildite with greenish yellow magnesiocopiapite.
Location: United Verde Mine, Jerome, Yavapai County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Guilleminite Image

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Guilleminite: Ba(UO2)3(SeO3)2O2·3(H2O)

Comments: Radial, yellow aggregates of acicular crystals of guilleminite on green malachite.
Location: Musonoi mine, Kolwezi, Shaba, Democratic Republic of the Congo. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Guilleminite Image

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Guilleminite: Ba(UO2)3(SeO3)2O2·3(H2O)

Comments: Radial, yellow aggregates of acicular crystals of guilleminite on green malachite.
Location: Musonoi mine, Kolwezi, Shaba, Democratic Republic of the Congo. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Guimaraesite Image

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Guimaraesite: Ca2(Zn,Mg,Fe)5Be4(PO4)6(OH)4·6H2O

Comments: Brown guimaraesite spheres and crystal aggregates..
Location: Piaui district, Itinga, Minas Gerais, Brazil. Scale: Specimen size 2 mm.
© Diederik Visser

Guimaraesite Image

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Guimaraesite: Ca2(Zn,Mg,Fe)5Be4(PO4)6(OH)4·6H2O

Comments: Botryoidal guimaraesite on eosphorite.
Location: Piaul District, Itinga, Minas Gerais, Brazil. Scale: Specimen size 1.1 x 0.9 x 0.8 cm.
© Rob Lavinsky
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