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

Columbite-(Fe) Image

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Columbite-(Fe): Fe++Nb2O6

Comments: Dark grains of columbite-(Fe) wtth small brown grains of fluorcarbonates of LREE. Corrected identificaton by Pavel M. Kartashov who analyzed this occurrence of 'chagbaiite'.
Location: Round Top Rhyolite, Hudspeth County, Texas, USA. Scale: Picture Size 1 mm.
© Thomas Witzke

Columbite-(Fe) Image

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Columbite-(Fe): Fe++Nb2O6

Comments: Dark grains of columbite-(Fe) wtth small brown grains of fluorcarbonates of LREE. Corrected identificaton by Pavel M. Kartashov who analyzed this occurrence of 'chagbaiite'.
Location: Round Top Rhyolite, Hudspeth County, Texas, USA. Scale: Picture Size 1 mm.
© Thomas Witzke

Columbite-(Mn) Image

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Columbite-(Mn): (Mn,Fe++)(Nb,Ta)2O6

Comments: Small brown tabular crystals of manganocolumbite in a pegmatite.
Location: Neuland Quarry, Döbschütz, Königshain, Oberlausitz, Saxony, Germany. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Columbite-(Mn) Image

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Columbite-(Mn): (Mn,Fe++)(Nb,Ta)2O6

Comments: Small brown tabular crystals of manganocolumbite in a pegmatite.
Location: Neuland Quarry, Döbschütz, Königshain, Oberlausitz, Saxony, Germany. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Comancheite Image

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Comancheite: Hg13(Cl,Br)8O9

Comments: Small orange crystals of comancheite on matrix.
Location: Mariposa mine, Terlingua, Terlingua district, Brewster County, Texas, USA. Scale: Picture size 1.4 mm.
© Thomas Witzke / Abraxas-Verlag

Comancheite Image

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Comancheite: Hg13(Cl,Br)8O9

Comments: Small orange crystals of comancheite on matrix.
Location: Mariposa mine, Terlingua, Terlingua district, Brewster County, Texas, USA. Scale: Picture size 1.4 mm.
© Thomas Witzke / Abraxas-Verlag

Compreignacite Image

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Compreignacite: K2(UO2)6O4(OH)6·8(H2O)

Comments: Yellow crystals of compreignacite on matrix.
Location: Ronneburg U deposit, Gera district, Thuringia, Germany. Scale: Picture size 1.5 mm.
© Thomas Witzke / Abraxas-Verlag

Compreignacite Image

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Compreignacite: K2(UO2)6O4(OH)6·8(H2O)

Comments: Yellow crystals of compreignacite on matrix.
Location: Ronneburg U deposit, Gera district, Thuringia, Germany. Scale: Picture size 1.5 mm.
© Thomas Witzke / Abraxas-Verlag

Coquandite Image

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Coquandite: Sb6O8(SO4)·(H2O)

Comments: Silky coquandite with stibnite.
Location: Pereta mine, Grosseto, Tuscany, Italy. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Coquandite Image

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Coquandite: Sb6O8(SO4)·(H2O)

Comments: Silky coquandite with stibnite.
Location: Pereta mine, Grosseto, Tuscany, Italy. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Corderoite Image

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Corderoite: Hg3S2Cl2

Comments: Small dark brown dodecahedral crystal of corderoite.
Location: Hohe Buche, Königsberg, Wolfstein, Palatinate, Rhineland-Palatinate, Germany. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag

Corderoite Image

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Corderoite: Hg3S2Cl2

Comments: Small dark brown dodecahedral crystal of corderoite.
Location: Hohe Buche, Königsberg, Wolfstein, Palatinate, Rhineland-Palatinate, Germany. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag

Cordylite-(Ce) Image

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Cordylite-(Ce): Ba(Ce,La)2(CO3)3F2  
Synchysite-(Ce): CaCe(CO3)2F

Comments: Yellow crystals of cordylite-(Ce) on light brownish synchysite-(Ce).
Location: Narssârssuk (Narsarsuk), Igaliko, Greenland. Scale: Picture size 1.5 mm.
© Thomas Witzke / Abraxas-Verlag

Cordylite-(Ce) Image

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Cordylite-(Ce): Ba(Ce,La)2(CO3)3F2  
Synchysite-(Ce): CaCe(CO3)2F

Comments: Yellow crystals of cordylite-(Ce) on light brownish synchysite-(Ce).
Location: Narssârssuk (Narsarsuk), Igaliko, Greenland. Scale: Picture size 1.5 mm.
© Thomas Witzke / Abraxas-Verlag

Coronadite Image

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Coronadite: Pb(Mn++++,Mn++)8O16  
Crocoite: PbCrO4

Comments: Black coronadite with red crocoite on matrix.
Location: Callenberg North (no. 1) open cut, Callenberg, Glauchau, Saxony, Germany. Scale: Specimen size 7 cm.
© Thomas Witzke / Abraxas-Verlag

Coronadite Image

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Coronadite: Pb(Mn++++,Mn++)8O16  
Crocoite: PbCrO4

Comments: Black coronadite with red crocoite on matrix.
Location: Callenberg North (no. 1) open cut, Callenberg, Glauchau, Saxony, Germany. Scale: Specimen size 7 cm.
© Thomas Witzke / Abraxas-Verlag

Cosalite Image

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Cosalite: Pb2Bi2S5

Comments: Metallic-lustered cosalite on matrix.
Location: Limestone Quarry, Hammerunterwiesenthal, Oberwiesenthal, Erzgebirge, Saxony, Germany. Scale: Picture size 8 mm.
© Thomas Witzke / Abraxas-Verlag

Cosalite Image

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Cosalite: Pb2Bi2S5

Comments: Metallic-lustered cosalite on matrix.
Location: Limestone Quarry, Hammerunterwiesenthal, Oberwiesenthal, Erzgebirge, Saxony, Germany. Scale: Picture size 8 mm.
© Thomas Witzke / Abraxas-Verlag

Crichtonite Image

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Crichtonite: (Sr,La,Ce,Y)(Ti,Fe+++,Mn)21O38

Comments: Black crichtonite crystal in quartz.
Location: Kriegalptal, Binntal, Wallis (Valais), Switzerland. Scale: Picture size 1.5 mm.
© Thomas Witzke / Abraxas-Verlag

Crichtonite Image

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Crichtonite: (Sr,La,Ce,Y)(Ti,Fe+++,Mn)21O38

Comments: Black crichtonite crystal in quartz.
Location: Kriegalptal, Binntal, Wallis (Valais), Switzerland. Scale: Picture size 1.5 mm.
© Thomas Witzke / Abraxas-Verlag
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