Thomas Witzke's Image Gallery

Thomas Witzke's Image Gallery
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Images from Thomas Witzke

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Thomas Witzke's Image Gallery With 1036 Images

Ferronigerite-6N6S Image

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Ferronigerite-6N6S: (Fe++,Zn)4Sn2(Al,Fe+++)15O30(OH)2

Comments: Brownish ferronigerite-6N6S in matrix.
Location: Rosendal tantalum deposit, Rosendal pegmatite, Kemiö (Kimito) Island, Lansi-Suomen Laani, Finland. Scale: Picture Size 3.5 mm.
© Thomas Witzke / Abraxas-Verlag

Ferronigerite-6N6S Image

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Ferronigerite-6N6S: (Fe++,Zn)4Sn2(Al,Fe+++)15O30(OH)2

Comments: Brownish ferronigerite-6N6S in matrix.
Location: Rosendal tantalum deposit, Rosendal pegmatite, Kemiö (Kimito) Island, Lansi-Suomen Laani, Finland. Scale: Picture Size 3.5 mm.
© Thomas Witzke / Abraxas-Verlag

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

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

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

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  
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

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

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

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

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

Fettelite Image

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Fettelite: [Ag6As2S7][Ag10HgAs2S8]

Comments: Deep scarlet red crystals of fettelite.
Location: Glasberg Quarry, Nieder-Beerbach, Odenwald, Hesse, Germany. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag

Fettelite Image

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Fettelite: [Ag6As2S7][Ag10HgAs2S8]

Comments: Deep scarlet red crystals of fettelite.
Location: Glasberg Quarry, Nieder-Beerbach, Odenwald, Hesse, Germany. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag

Fianelite Image

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Fianelite: Mn++2V+++++(V+++++,As+++++)O7·2(H2O)

Comments: Small reddish-brown inclusions of fianelite in matrix.
Location: Fianel Mine, Val Ferrera, Grischun (Grisons; Graubünden), Switzerland. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag

Fianelite Image

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Fianelite: Mn++2V+++++(V+++++,As+++++)O7·2(H2O)

Comments: Small reddish-brown inclusions of fianelite in matrix.
Location: Fianel Mine, Val Ferrera, Grischun (Grisons; Graubünden), Switzerland. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag

Fibroferrite Image

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Fibroferrite: Fe+++(SO4)(OH)·5(H2O)

Comments: Tan-white, acicular crystals of fibroferrite on matrix.
Location: Lichtenberg Mine, Ronneburg U Deposit, Gera district, Thuringia, Germany. Scale: Picture size 2 mm.
© Thomas Witzke / Abraxas-Verlag

Fibroferrite Image

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Fibroferrite: Fe+++(SO4)(OH)·5(H2O)

Comments: Tan-white, acicular crystals of fibroferrite on matrix.
Location: Lichtenberg Mine, Ronneburg U Deposit, Gera district, Thuringia, Germany. Scale: Picture size 2 mm.
© Thomas Witzke / Abraxas-Verlag

Fichtelite Image

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Fichtelite: C19H34

Comments: Colorless crystals of fichtelite on fossil wood.
Location: Marktredwitz, Fichtelgebirge, Bavaria, Germany. Scale: Picture size 6 mm.
© Thomas Witzke / Abraxas-Verlag

Fichtelite Image

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Fichtelite: C19H34

Comments: Colorless crystals of fichtelite on fossil wood.
Location: Marktredwitz, Fichtelgebirge, Bavaria, Germany. Scale: Picture size 6 mm.
© Thomas Witzke / Abraxas-Verlag
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