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's Image Gallery With 4041 Images

Ferrorosemaryite Image

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Ferrorosemaryite: [ ]NaFe++Fe+++Al(PO4)3

Comments: B&W PPL image of idiomorphic, semi-opague grains of ferrorosemaryite in white scorzalite. (Eur J Mineralogy, v17:749.
Location: Rubindi pegmatite, Rwanda. Scale: See Image.
© Eur. J. Mineral

Ferrosaponite Image

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Ferrosaponite: Ca0.3(Fe++,Mg,Fe+++)3(Si,Al)4O10(OH)2·4(H2O)

Comments: Black to greenish black balls of radiating Ferrosaponite crystals on white calcite.
Location: Levoberezhye Icelandspar deposit, Nizhuyaya Tunguska river, Evenkiya, Siberia, Russia. Scale: Not Given.
© Diederik Visser

Ferrosaponite Image

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Ferrosaponite: Ca0.3(Fe++,Mg,Fe+++)3(Si,Al)4O10(OH)2·4(H2O)

Comments: Holotype specimens of earthy ferrosaponite.
Location: Russia, Eastern-Siberian Region, Krasnoyarsk Territory, Evenkia, Levoberezhye Iceland Spar Deposit. Scale: FOV 6 cm.
© German Type Specimen Catalogue

Ferroselite Image

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Ferroselite: FeSe2

Comments: Yellowish silver metallic prismatic ferroselite crystals on matrix.
Location: Virgin No. 3 mine, Paradox Valley, Uravan District, Montrose County, Colorado, USA. Scale: See Image.
© Rruff Database

Ferrosilite Image

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Ferrosilite: (Fe++,Mg)2Si2O6

Comments: Transparent, brown prismatic blades of ferrosilite crystals on matrix.
Location: Summit Rock, Diamond Lake, Douglas County, Oregon, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Ferrostrunzite Image

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Ferrostrunzite: Fe++Fe+++2(PO4)2(OH)2·6(H2O)

Comments: Yellowish acicular crystals of ferrostrunzite.
Location: Gravel Hill mine, Perranzabuloe, Cornwall, England, UK. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Ferrotschermakite Image

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Ferrotschermakite: [ ]Ca2(Fe++3AlFe+++)Si6Al2O22(OH)

Comments: Medium green crystalline massive ferrotschermakite with yellow-brown massive andradite.
Location: Old Tip Quarry, Dookie Mineralogical Reserve, Dookie, Victoria, Australia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ferrotychite Image

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Ferrotychite: Na6Fe++2(SO4)(CO3)4

Comments: Yellow crystalline granular ferrotychite in white analcime (drill core).
Location: Olenii Ruchei, Khibiny Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ferrowinchite Image

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Ferrowinchite: [ ](CaNa)Fe++4(Al,Fe+++)Si8O22(OH)2

Comments: Dark green divergent fibrous ferrowinchite.
Location: Harstigen, Varmland, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ferrowodginite Image

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Ferrowodginite: Fe++SnTa2O8

Comments: Dark brown massive ferrowodginite.
Location: Nyanga Number 2 Pegmatite, Ankole, Uganda. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ferrowyllieite Image

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Ferrowyllieite: (Na,Ca,Mn)(Fe++,Mn)(Fe++,Fe+++,Mg)Al(PO4)3

Comments: Deep greenish black massive ferrowyllieite with brown to white quartz.
Location: Victory Mine, near Custer, Custer County, South Dakota, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ferruccite Image

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Ferruccite: NaBF4  
Avogadrite: (K,Cs)BF4

Comments: Very small, white crystals of ferrite on massive, yellowish avogadrite.
Location: Vesuvius, Naples, Naples province, Campania, Italy. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Fersilicite Image

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Fersilicite: FeSi  
Xifengite: Fe5Si3

Comments: Reflected light image of cream white grain of xifengite (Xi) with exsolution of white gupeiite (Gu) and grey fersilicite (Fe). Epoxy grain mount.
Location: Isovskaya Field, Priasovje, Ukraine. Scale: Picture Size 0.7 mm.
© Thomas Witzke

Fersilicite Image

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Fersilicite: FeSi  
Ferdisilicite: FeSi2

Comments: Dark grains of ferdisilicite, in sand, intermixed with dark grains of fersilicate.
Location: Poltava series, Zachativsk station, Donets (Donetsk) region, Donets'k Oblast' (Donetsk Oblast'), Ukraine. Scale: 0.2 cm field of view.
© Jeff Weissman / Photographic Guide to Mineral Species

Fersmanite Image

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Fersmanite: Ca4(Na,Ca)4(Ti,Nb)4(Si2O7)2O8F3

Comments: Large single crystal of brown fersmanite in quartz matrix.
Location: Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: 4x3x2 cm.
© John Betts - Fine Minerals

Fersmite Image

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Fersmite: (Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6

Comments: Brown prismatic crystal of fersmite in matrix.
Location: Alpe Rosso, Vigezzo valley, Novara, Piedmont, Italy. Scale: Picture size 1.7 mm.
© Thomas Witzke / Abraxas-Verlag

Feruvite Image

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Feruvite: (Ca,Na)(Fe,Mg,Ti)3(Al,Mg,Fe)6(BO3)3Si6O18(OH)4

Comments: BSE image of a typical zoned feruvite-dravite crystal in quartz. The lighter gray core is feruvite (F), and the darker rim and overgrowths consist of dravite (D). The white grains are chlorapatite..
Location: Tourmalinized rock at Cuvier Island, New Zealand. (CanMin, v27:199). Scale: Scale Bar 100 µm.
© Canadian Mineralogist

Feruvite Image

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Feruvite: (Ca,Na)(Fe,Mg,Ti)3(Al,Mg,Fe)6(BO3)3Si6O18(OH)4

Comments: Dark green grains of feruvite in matrix.
Location: Red Cross Lake, Manitoba, Canada. Scale: See Image.
© Rruff Database

Fervanite Image

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Fervanite: Fe+++4(VO4)4·5(H2O)  
Hewettite: CaV6O16·9(H2O)

Comments: Spherical aggregate of acicular microcrystals of fervanite with blocky hewettite.
Location: Gold Quarry Mine, Carlin Trend, Eureka County, Nevada, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Fetiasite Image

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Fetiasite: (Fe++,Fe+++,Ti++++)3O2(As+++2O5)

Comments: Sub metallic grayish black crystals of fetiasite on matrix.
Location: Gorb, Binntal, Wallis (Valais), Switzerland. Scale: Picture size 6 mm.
© Thomas Witzke / Abraxas-Verlag

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