Mineral Specimen Images (A)

Mineral Specimen Images (A)
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Mineral Specimen Images (A) With 620 Images

Akhtenskite Image

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Akhtenskite: Mn++++O2

Comments: Dark gray grains of akhtenskite with brown superficial coating.
Location: Akhtenskoye Deposit, Chelyabinsk District, Urals, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Akhtenskite Image

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Akhtenskite: Mn++++O2

Comments: Dark gray grains of akhtenskite with brown superficial coating.
Location: Akhtenskoye Deposit, Chelyabinsk District, Urals, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Akimotoite Image

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Akimotoite: (Mg,Fe)SiO3

Comments: Electron micrograph of akimotoite (Ak) as columnar grains. Aggregates of akimotoite are adjacent to a large clinoenstatite grain (Cen) with (100) twin lamallae. (AmMin 84:268).
Location: Shock-metamorphosed Tenham chondrite. Scale: See Image.
© American Mineralogist

Akimotoite Image

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Akimotoite: (Mg,Fe)SiO3

Comments: Electron micrograph of akimotoite (Ak) as columnar grains. Aggregates of akimotoite are adjacent to a large clinoenstatite grain (Cen) with (100) twin lamallae. (AmMin 84:268).
Location: Shock-metamorphosed Tenham chondrite. Scale: See Image.
© American Mineralogist

Akrochordite Image

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Akrochordite: Mn4Mg(AsO4)2(OH)4·4(H2O)  
Eveite: Mn2(AsO4)(OH)

Comments: Micro crystals (to about 0.75mm) of very pale grayish green eveite in tiny vug with light pink akrochordite. Co-Type specimen & type locality.
Location: Langban, Varmland, Sweden. Scale: 13x10x4 mm.
© Tom Loomis / Dakota Matrix

Akrochordite Image

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Akrochordite: Mn4Mg(AsO4)2(OH)4·4(H2O)  
Eveite: Mn2(AsO4)(OH)

Comments: Micro crystals (to about 0.75mm) of very pale grayish green eveite in tiny vug with light pink akrochordite. Co-Type specimen & type locality.
Location: Langban, Varmland, Sweden. Scale: 13x10x4 mm.
© Tom Loomis / Dakota Matrix

Aksaite Image

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Aksaite: MgB6O7(OH)6·2(H2O)

Comments: Gray-white massive aksaite fragment photographed through a capsule.
Location: Chelkar Salt dome, Ak-Say Valley, Kazakhstan. Scale: Not Given.
© Diederik Visser

Aksaite Image

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Aksaite: MgB6O7(OH)6·2(H2O)

Comments: Gray-white massive aksaite fragment photographed through a capsule.
Location: Chelkar Salt dome, Ak-Say Valley, Kazakhstan. Scale: Not Given.
© Diederik Visser

Aktashite Image

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Aktashite: Cu6Hg3As4S12

Comments: Metallic gray grain of aktashite in quartz gangue.
Location: Moctezuma, Mun. de Moctezuma, Sonora, Mexico. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Aktashite Image

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Aktashite: Cu6Hg3As4S12

Comments: Metallic gray grain of aktashite in quartz gangue.
Location: Moctezuma, Mun. de Moctezuma, Sonora, Mexico. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Alabandite Image

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Alabandite: MnS  
Daubreelite: Fe++Cr2S4

Comments: Daubreelite (D), bright metallic white, with alabandite (A) (dull yellow) as inclusions in a polished section of an achondrite meteorite.
Location: Norton County, Kansas. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Alabandite Image

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Alabandite: MnS

Comments: Dark gray stalactitic alabandite.
Location: Broken Hill Proprietary Mine, Broken Hill, New South Wales, Australia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Alabandite Image

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Alabandite: MnS

Comments: Dark gray stalactitic alabandite.
Location: Broken Hill Proprietary Mine, Broken Hill, New South Wales, Australia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Alabandite Image

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Alabandite: MnS  
Daubreelite: Fe++Cr2S4

Comments: Daubreelite (D), bright metallic white, with alabandite (A) (dull yellow) as inclusions in a polished section of an achondrite meteorite.
Location: Norton County, Kansas. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Alacranite Image

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Alacranite: As8S9

Comments: Red crystals of alacranite.
Location: Mine Wilmsdorfer Schacht, Possendorf near Dresden, Sachsen, Germany. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Alacranite Image

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Alacranite: As8S9

Comments: Red crystals of alacranite.
Location: Mine Wilmsdorfer Schacht, Possendorf near Dresden, Sachsen, Germany. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Alamosite Image

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Alamosite: PbSiO3

Comments: White alamosite crystal group. John Schneider Collection.
Location: Tsumeb, Namibia. Scale: 3.5x3x2 cm.
© Dan Weinrich

Alamosite Image

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Alamosite: PbSiO3

Comments: White alamosite crystal group. John Schneider Collection.
Location: Tsumeb, Namibia. Scale: 3.5x3x2 cm.
© Dan Weinrich

Alarsite Image

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Alarsite: AlAsO4

Comments: Small thread-like alarsite fragment held to sample peg by a drop of glue.
Location: Tolbachik Volcano, Main Fracture, North Breakthrough, Kamchatka Peninsula, Russia. Scale: Peg Size 2 mm.
© Diederik Visser

Alarsite Image

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Alarsite: AlAsO4

Comments: Small thread-like alarsite fragment held to sample peg by a drop of glue.
Location: Tolbachik Volcano, Main Fracture, North Breakthrough, Kamchatka Peninsula, Russia. Scale: Peg Size 2 mm.
© Diederik Visser
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