Thomas Witzke's Image Gallery

Images from Thomas Witzke

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Thomas Witzke's Image Gallery With 1036 Images

Cronusite Image

Images:

Cronusite: Ca0.2(H2O)2CrS2

Comments: Light gray grain of cronusite. Polished section (from microprobe analysis) in reflected light.
Location: Enstatite meteorite, Norton Co., Kansas, USA. Scale: Picture size 0.18 mm.
© Thomas Witzke / Abraxas-Verlag

Cronusite Image

Images:

Cronusite: Ca0.2(H2O)2CrS2

Cryptohalite Image

Images:

Cryptohalite: (NH4)2SiF6

Comments: White to colorless crystals of cryptohalite. The red color is due to admixtured (amorphous ?) selenium.
Location: Kladno, Stredoceský Kraj, Bohemia, Czech Republic. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Cryptohalite Image

Images:

Cryptohalite: (NH4)2SiF6

Cuproiridsite Image

Images:

Cuproiridsite: CuIr2S4
Isoferroplatinum: (Pt,Pd)3(Fe,Cu)

Comments: Gray equant crystal of cuproiridsite in light gray isoferroplatinum. Polished section (from microprobe analysis) in reflected light.
Location: Konder Mine, Konder alkaline-ultrabasic massif, Aldan shield, Saha (Sakha) Republic (Yakutia), Eastern-Siberian Region, Russia. Scale: Picture size 0.14 mm.
© Thomas Witzke / Abraxas-Verlag

Cuproiridsite Image

Images:

Cuproiridsite: CuIr2S4
Isoferroplatinum: (Pt,Pd)3(Fe,Cu)

Cyrilovite Image

Images:

Cyrilovite: NaFe+++3(PO4)2(OH)4·2(H2O)

Comments: Greenish-yellow crystals of cyrilovite in matrix.
Location: Rengersdorf, Görlitz, Oberlausitz, Saxony, Germany. Scale: Picture size 1.5 mm.
© Thomas Witzke / Abraxas-Verlag

Cyrilovite Image

Images:

Cyrilovite: NaFe+++3(PO4)2(OH)4·2(H2O)

Comments: Greenish-yellow crystals of cyrilovite in matrix.
Location: Rengersdorf, Görlitz, Oberlausitz, Saxony, Germany. Scale: Picture size 1.5 mm.
© Thomas Witzke / Abraxas-Verlag

Dashkovaite Image

Images:

Dashkovaite: Mg(HCOO)2·2(H2O)

Comments: White fibrous dashkovaite.
Location: Buriatia (Buryatia) Republic, Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia. Scale: Picture size 2.3 mm.
© Thomas Witzke / Abraxas-Verlag

Dashkovaite Image

Images:

Dashkovaite: Mg(HCOO)2·2(H2O)

Daubreeite Image

Images:

Daubreeite: BiO(OH,Cl)

Comments: Massive yellow daubreeite.
Location: Cerro Tazna, Atocha-Quechisla district, Nor Chichas Province, Potosí Department, Bolivia. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Daubreeite Image

Images:

Daubreeite: BiO(OH,Cl)

Decrespignyite-(Y) Image

Images:

Decrespignyite-(Y): (Y,REE)4Cu(CO3)4Cl(OH)5·2(H2O)

Comments: Blue, rounded aggregates of decrespignyite-(Y) on matrix.
Location: Paratoo copper mine, Yunta, Olary Province, South Australia, Australia. Scale: Picture size 2 mm.
© Thomas Witzke / Abraxas-Verlag

Decrespignyite-(Y) Image

Images:

Decrespignyite-(Y): (Y,REE)4Cu(CO3)4Cl(OH)5·2(H2O)

Delafossite Image

Images:

Delafossite: Cu+Fe+++O2

Comments: Black crystals of delafossite on matrix.
Location: Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Delafossite Image

Images:

Delafossite: Cu+Fe+++O2

Denisovite Image

Images:

Denisovite: (K,Na)Ca2Si3O8(F,OH)

Comments: Grayish-white fibrous denisovite.
Location: Eveslogchorr Mt , Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Denisovite Image

Images:

Denisovite: (K,Na)Ca2Si3O8(F,OH)

Denningite Image

Images:

Denningite: (Mn,Zn)Te2O5
Tellurite: TeO2

Comments: Vitreous colorless to very pale yellowish elongated crystals denningite with yellow tellurite.
Location: Bambolla Mine, Moctezuma, Mun. de Moctezuma, Sonora, Mexico. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Denningite Image

Images:

Denningite: (Mn,Zn)Te2O5
Tellurite: TeO2

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