Mineral Specimen Images (F)

Mineral Specimen Images (F)
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Mineral Specimen Images (F) With 414 Images

Fornacite Image

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Fornacite: Pb2Cu(CrO4)(AsO4)(OH)

Comments: Emerald green platy crystals to 0.75mm on a pink to white, siliceous matrix.
Location: Lone Star mine, Copperopolis, Yavapai County, Arizona. Scale: Picture size 1.4 cm.
© Tom Loomis / Dakota Matrix

Fornacite Image

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Fornacite: Pb2Cu(CrO4)(AsO4)(OH)

Comments: Dark, prismatic crystals of fornacite on matrix.
Location: El Khun mine, Anarak, Iran. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Fornacite Image

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Fornacite: Pb2Cu(CrO4)(AsO4)(OH)

Comments: Emerald green platy crystals to 0.75mm on a pink to white, siliceous matrix.
Location: Lone Star mine, Copperopolis, Yavapai County, Arizona. Scale: Picture size 1.4 cm.
© Tom Loomis / Dakota Matrix

Fornacite Image

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Fornacite: Pb2Cu(CrO4)(AsO4)(OH)

Comments: Dark, prismatic crystals of fornacite on matrix.
Location: El Khun mine, Anarak, Iran. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Forsterite Image

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Forsterite: Mg2SiO4  
Olivine: (Mg,Fe)2SiO4

Comments: Peridot (Forsterite) recrystallized at the base.
Location: Skardu, Nooristan, Pakistan. Scale: 2.5 x 2.7 cm.
© Fabre Minerals

Forsterite Image

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Forsterite: Mg2SiO4  
Olivine: (Mg,Fe)2SiO4

Comments: Peridot (Forsterite) recrystallized at the base.
Location: Skardu, Nooristan, Pakistan. Scale: 2.5 x 2.7 cm.
© Fabre Minerals

Foshagite Image

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Foshagite: Ca4Si3O9(OH)2

Comments: Tan to gray fibrous to columnar aggregate of foshagite.
Location: Crestmore Quarry, Riverside County, California, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Foshagite Image

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Foshagite: Ca4Si3O9(OH)2

Comments: Tan to gray fibrous to columnar aggregate of foshagite.
Location: Crestmore Quarry, Riverside County, California, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Foshallasite Image

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Foshallasite: Ca3Si2O7·3(H2O)

Comments: Pearly translucent white somewhat fibrous aggregate of foshallasite.
Location: Mount Yukspor, Khibiny Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Foshallasite Image

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Foshallasite: Ca3Si2O7·3(H2O)

Comments: Pearly translucent white somewhat fibrous aggregate of foshallasite.
Location: Mount Yukspor, Khibiny Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Fourmarierite Image

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Fourmarierite: Pb(UO2)4O3(OH)4·4(H2O)

Comments: Thick tabular orange crystals of fourmarierite.
Location: Shinkolobwe mine, Tantara, Shaba, Democratic Republic of the Congo. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Fourmarierite Image

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Fourmarierite: Pb(UO2)4O3(OH)4·4(H2O)

Comments: Thick tabular orange crystals of fourmarierite.
Location: Shinkolobwe mine, Tantara, Shaba, Democratic Republic of the Congo. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Fraipontite Image

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Fraipontite: (Zn,Al)3(Si,Al)2O5(OH)4  
Zinalsite: Zn2AlSi2O5(OH)4·2(H2O) (?)  
Smithsonite: ZnCO3

Comments: Pearly white, sub-mm fraipontite (zinalsite) crystals associated with green smithsonite.
Location: Lavrion District Mines, Lavrion District, Attikí (Attica; Attika) Prefecture, Greece. Scale: Specimen Size 1.4 x 1.0 x 0.9 cm.
© Rob Lavinsky

Fraipontite Image

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Fraipontite: (Zn,Al)3(Si,Al)2O5(OH)4  
Zaccagnaite: Zn4Al2(OH)12(CO3)·3(H2O)

Comments: Scanning electron microscope image of hexagonal, tapering, prismatic zaccagnaite crystals, covered by a thin crust of fraipontite. (AmMin 86:1294).
Location: Marble quarries of the Carrara basin (Apuan Alps, Italy). Scale: See Image.
© American Mineralogist

Fraipontite Image

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Fraipontite: (Zn,Al)3(Si,Al)2O5(OH)4  
Zaccagnaite: Zn4Al2(OH)12(CO3)·3(H2O)

Comments: Scanning electron microscope image of hexagonal, tapering, prismatic zaccagnaite crystals, covered by a thin crust of fraipontite. (AmMin 86:1294).
Location: Marble quarries of the Carrara basin (Apuan Alps, Italy). Scale: See Image.
© American Mineralogist

Fraipontite Image

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Fraipontite: (Zn,Al)3(Si,Al)2O5(OH)4  
Zinalsite: Zn2AlSi2O5(OH)4·2(H2O) (?)  
Smithsonite: ZnCO3

Comments: Pearly white, sub-mm fraipontite (zinalsite) crystals associated with green smithsonite.
Location: Lavrion District Mines, Lavrion District, Attikí (Attica; Attika) Prefecture, Greece. Scale: Specimen Size 1.4 x 1.0 x 0.9 cm.
© Rob Lavinsky

Francevillite Image

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Francevillite: (Ba,Pb)(UO2)2V2O8·5(H2O)

Comments: Specimen of orange francevillite with minor yellow curienite.
Location: Mouana Mine, Gabon. Scale: Crystal size 4 mm.
© John Veevaert

Francevillite Image

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Francevillite: (Ba,Pb)(UO2)2V2O8·5(H2O)  
Mounanaite: PbFe+++2(VO4)2(OH)2

Comments: Stout, yellow, transparent, prismatic, striated crystals of francevillite on brownish red mounanaite matrix.
Location: Mounana mine, Franceville, Haut-Ogooué, Gabon. Scale: Picture size 1.5 cm.
© Paul M. Schumacher

Francevillite Image

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Francevillite: (Ba,Pb)(UO2)2V2O8·5(H2O)  
Curienite: Pb(UO2)2V2O8·5(H2O)

Comments: Intense yellow curienite and orange francevillite.
Location: Mouonana, Haut-Ogoue, Gabon. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Francevillite Image

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Francevillite: (Ba,Pb)(UO2)2V2O8·5(H2O)  
Mounanaite: PbFe+++2(VO4)2(OH)2

Comments: Stout, yellow, transparent, prismatic, striated crystals of francevillite on brownish red mounanaite matrix.
Location: Mounana mine, Franceville, Haut-Ogooué, Gabon. Scale: Picture size 1.5 cm.
© Paul M. Schumacher
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