Mineral Specimen Images (A)

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

Allophane Image

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Allophane: Al2O3·(SiO2)1.3-2·((H2O))2.5-3

Comments: Blue, cuprian, botryoidal allophane on matrix.
Location: Reiche Zeche Mine, Himmelfahrt Mine, Freiberg, Freiberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Allophane Image

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Allophane: Al2O3·(SiO2)1.3-2·((H2O))2.5-3

Comments: Blue, cuprian, botryoidal allophane on matrix.
Location: Reiche Zeche Mine, Himmelfahrt Mine, Freiberg, Freiberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Alloriite Image

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Alloriite: Na5K1.5Ca(Si6Al6O24)(SO4)(OH)0.5·H2O

Comments: Colorless alloriite prisms in vug.
Location: Monte Cavalluccio, near Campagnano di Roma, Rome, Latium, Italy. Scale: See Image.
© Rruff Database

Alloriite Image

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Alloriite: Na5K1.5Ca(Si6Al6O24)(SO4)(OH)0.5·H2O

Comments: Colorless alloriite prisms in vug.
Location: Monte Cavalluccio, near Campagnano di Roma, Rome, Latium, Italy. Scale: See Image.
© Rruff Database

Alluaudite Image

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Alluaudite: NaCaFe++(Mn,Fe++,Fe+++,Mg)2(PO4)3

Comments: Nearly pure crystalline dark green brown mass of alluaudite.
Location: Warusenge Pegmatite, Buranga, Rwanda. Scale: Size Not Given.
© John Veevaert

Alluaudite Image

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Alluaudite: NaCaFe++(Mn,Fe++,Fe+++,Mg)2(PO4)3  
Heterosite: Fe+++PO4

Comments: Purple crystalline heterosite with yellow coatings of alluaudite.
Location: Palermo Mine, North Groton, Grafton County, New Hampshire, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Alluaudite Image

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Alluaudite: NaCaFe++(Mn,Fe++,Fe+++,Mg)2(PO4)3

Comments: Nearly pure crystalline dark green brown mass of alluaudite.
Location: Warusenge Pegmatite, Buranga, Rwanda. Scale: Size Not Given.
© John Veevaert

Alluaudite Image

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Alluaudite: NaCaFe++(Mn,Fe++,Fe+++,Mg)2(PO4)3  
Heterosite: Fe+++PO4

Comments: Purple crystalline heterosite with yellow coatings of alluaudite.
Location: Palermo Mine, North Groton, Grafton County, New Hampshire, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Almandine Image

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Almandine: Fe++3Al2(SiO4)3  
Hypersthene: (Mg,Fe++)2Si2O6

Comments: Dark green blocky crystals hypersthene with reddish almandine.
Location: Barton Garnet Mine, North Creek, Warren County, Adirondacks, New York, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Almandine Image

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Almandine: Fe++3Al2(SiO4)3

Comments: Two reddish brown crystals of almandine on matrix.
Location: Fanny Gorge mine, Spruce Pine, Mitchell County, North Carolina, USA. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals

Almandine Image

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Almandine: Fe++3Al2(SiO4)3

Comments: Two reddish brown crystals of almandine on matrix.
Location: Fanny Gorge mine, Spruce Pine, Mitchell County, North Carolina, USA. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals

Almandine Image

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Almandine: Fe++3Al2(SiO4)3  
Hypersthene: (Mg,Fe++)2Si2O6

Comments: Dark green blocky crystals hypersthene with reddish almandine.
Location: Barton Garnet Mine, North Creek, Warren County, Adirondacks, New York, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Alpersite Image

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Alpersite: (Mg,Cu)SO4·7H2O

Comments: Bright blue efforescence associated with pickeringite, alunogen, and epsomite. Pickeringite and alunogen (white and yellow) occur on top of a matte of alpersite (blue) adjacent to a concrete wall.
Location: Big Mike mine, Nevada. Scale: Picture size 50 cm.
© American Mineralogist

Alpersite Image

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Alpersite: (Mg,Cu)SO4·7H2O

Comments: Bright blue efforescence associated with pickeringite, alunogen, and epsomite. Pickeringite and alunogen (white and yellow) occur on top of a matte of alpersite (blue) adjacent to a concrete wall.
Location: Big Mike mine, Nevada. Scale: Picture size 50 cm.
© American Mineralogist

Alsakharovite-Zn Image

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Alsakharovite-Zn: NaSrKZn(Ti,Nb)4(Si4O12)2(O,OH)4·7(H2O)

Comments: Light brown crystal fragment of alsakharovite-Zn.
Location: Lepkhe Nelm Mountain, Lovozero, Kola Peninsula, Russia. Scale: Crystal size 2 mm.
© Thomas Witzke / Abraxas-Verlag

Alsakharovite-Zn Image

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Alsakharovite-Zn: NaSrKZn(Ti,Nb)4(Si4O12)2(O,OH)4·7(H2O)

Comments: Light brown crystal fragment of alsakharovite-Zn.
Location: Lepkhe Nelm Mountain, Lovozero, Kola Peninsula, Russia. Scale: Crystal size 2 mm.
© Thomas Witzke / Abraxas-Verlag

Alstonite Image

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Alstonite: BaCa(CO3)2

Comments: Transparent alstonite crystals.
Location: Hexham, Northumberland, England. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals

Alstonite Image

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Alstonite: BaCa(CO3)2

Comments: Transparent alstonite crystals.
Location: Hexham, Northumberland, England. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals

Altaite Image

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Altaite: PbTe  
Mattagamite: CoTe2  
Tellurantimony: Sb2Te3

Comments: Silvery metallic intergrowths of mattagamite with tellurantimony and altaite.
Location: Mattagami Lake Mine, Quebec, Canada. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Altaite Image

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Altaite: PbTe

Comments: Bronze yellow metallic altaite crystals.
Location: Sonora, Tuolumne County, California, USA. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals
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