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 518 Images

Meurigite-K Image

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Meurigite-K: [K(H2O)2.5][Fe+++8(PO4)6(OH)7(H2O)4]

Comments: Brown meuirite-K oolite showing the concentric-fibrous internal structure.
Location: Rengersdorf, Görlitz, Oberlausitz, Saxony, Germany. Scale: Picture size 6 mm.
© Thomas Witzke / Abraxas-Verlag

Meymacite Image

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Meymacite: WO3ˇ2(H2O)

Comments: Orange-brownish to yellow massive Meymacite.
Location: Meymac, Corrčze, Limousin, France. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Millosevichite Image

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Millosevichite: (Al,Fe+++)2(SO4)3

Comments: Porous crust of Millosevichite.
Location: Schoeller Mine, Kladno, Stredoceský Kraj, Bohemia, Czech Republic. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Mirabilite Image

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Mirabilite: Na2SO4ˇ10(H2O)

Comments: Colorless grains and indistinct crystals of mirabilite. The mineral dehydrates quickly in dry air and must be preserved in a closed box.
Location: Willi Agatz Mine, Dresden, Saxony, Germany. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Moctezumite Image

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Moctezumite: Pb(UO2)(TeO3)2

Comments: Orange crystals of moctezumite on matrix.
Location: Moctezuma, Mun. de Moctezuma, Sonora, Mexico. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Moncheite Image

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Moncheite: (Pt,Pd)(Te,Bi)2  
Chalcopyrite: CuFeS2

Comments: White moncheite with chalcopyrite (orange, blue and violet tarnishing colors) in silicate matrix. Polished section (from microprobe analysis) in reflected light.
Location: Lukkulaisvaara ultrabasic Massif, Olanga (Oulanka) River, Oulanka plutonic complex, Karelia Republic, Northern Region, Russia. Scale: Picture size 0.11 mm.
© Thomas Witzke / Abraxas-Verlag

Mongolite Image

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Mongolite: Ca4Nb6Si5O24(OH)10ˇ5(H2O)

Comments: White to pinkish massive mongolite.
Location: Khan-Bogdinskii massif, Gobi Desert, Mongolia. Scale: Picture size 6 mm.
© Thomas Witzke / Abraxas-Verlag

Montanite Image

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Montanite: Bi2Te++++++O6ˇ2(H2O)

Comments: Grayish-green montanite grain in matrix.
Location: Zupkov (Zsubko; Schubkau), Stredoslovenský Kraj, Slovak Republic. Scale: Picture size 3 mm.
© Thomas Witzke / Abraxas-Verlag

Moolooite Image

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Moolooite: Cu++(C2O4)ˇn(H2O) (n < 1)

Comments: Light bluish moolooite encrustation.
Location: Ibergstausee, Stempeda, Südharz, Thuringia, Germany. Scale: Picture size 0.9 mm.
© Thomas Witzke / Abraxas-Verlag

Mopungite Image

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Mopungite: NaSb(OH)6

Comments: White mopungite encrustations.
Location: Cetine di Cotorniano Mine (Cetine Mine), Rosia, Siena, Tuscany, Italy. Scale: Picture size 7 mm.
© Thomas Witzke / Abraxas-Verlag

Morenosite Image

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Morenosite: NiSO4ˇ7(H2O)

Comments: Pale greenish blue crust of morenosite.
Location: Gorner Glacier, Furi, Zermatt, Wallis (Valais), Switzerland. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Mottanaite-(Ce) Image

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Mottanaite-(Ce): Ca4(Ce,Ca)2AlBe2[Si4B4O22]O2

Comments: Brown crystals of mottanaite-(Ce) in matrix.
Location: Monte Cavallucio, Sacrofano, Campagnano, Latium (Lazio), Italy. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Motukoreaite Image

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Motukoreaite: Na2Mg38Al24(CO3)13(SO4)8(OH)108ˇ56(H2O)

Comments: Colorless, tabular crystals of motukoreaite.
Location: Stradnerkogel Quarry, Wilhelmsdorf, Styria, Austria. Scale: Picture size 1.5 mm.
© Thomas Witzke / Abraxas-Verlag

Mountkeithite Image

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Mountkeithite: (Mg,Ni)11(Fe+++,Cr)3(SO4,CO3)3.5(OH)24ˇ11(H2O)

Comments: Pinkish mountkeithite grain in matrix.
Location: Mount Keith nickel deposit, Western Australia, Australia. Scale: Picture size 2 mm.
© Thomas Witzke / Abraxas-Verlag

Mrazekite Image

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Mrazekite: Bi+++2Cu++3(PO4)2O2(OH)2ˇ2(H2O)

Comments: Blue, prismatic crystal of mrázekite on matrix.
Location: Arme Hilfe Mine, Ullersreuth, Hirschberg, Vogtland, Saxony, Germany. Scale: Picture size 1.2 mm.
© Thomas Witzke / Abraxas-Verlag

Muckeite Image

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Muckeite: CuNiBiS3

Comments: Dark gray tabular crystals of Mückeite.
Location: Grüneau Mine (Grüne Au Mine; Grünau Mine), Schutzbach, Betzdorf, Siegen District (W), Rhineland-Palatinate, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Nabesite Image

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Nabesite: Na2BeSi4O10ˇ4(H2O)

Comments: White, tabular crystals of nabesite.
Location: Kvanefjeld plateau, Ilímaussaq massif, Greenland. Scale: Picture size 1.7 mm.
© Thomas Witzke / Abraxas-Verlag

Nacareniobsite-(Ce) Image

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Nacareniobsite-(Ce): NbNa3Ca3(Ce,La)(Si2O7)2OF3

Comments: White to light brownish nacareniobsite-(Ce) in an igneous rock matrix.
Location: Kvanefjeld Tunnel, Ilímaussaq massif, Greenland. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Nakauriite Image

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Nakauriite: (Mn,Ni,Cu)8(SO4)4(CO3)(OH)6ˇ48(H2O)

Comments: Blue crystals of nakauriite on green serpentinite.
Location: Lobming, Styria, Austria. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Namibite Image

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Namibite: Cu++Bi2(VO4)O2

Comments: Dark green crystals of namibite on matrix.
Location: Pucher Shaft, Schneeberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 1.3 mm.
© Thomas Witzke / Abraxas-Verlag
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