Thomas Witzke's Image Gallery

Images from Thomas Witzke

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Thomas Witzke's Image Gallery With 1036 Images

Finnemanite Image

Images:

Finnemanite: Pb5(As+++O3)3Cl

Comments: Black, prismatic, twinned crystal of finnemanite.
Location: Långban, Filipstad, Värmland, Sweden. Scale: Crystal length 4.5 mm.
© Thomas Witzke / Abraxas-Verlag

Finnemanite Image

Images:

Finnemanite: Pb5(As+++O3)3Cl

Comments: Black, prismatic, twinned crystal of finnemanite.
Location: Långban, Filipstad, Värmland, Sweden. Scale: Crystal length 4.5 mm.
© Thomas Witzke / Abraxas-Verlag

Fischesserite Image

Images:

Fischesserite: Ag3AuSe2
Klockmannite: CuSe

Comments: Pinkish-grey fischesserite (Fl) with fine-grained bluish-grey klockmannite (Kl) and grey clausthalite (Cl). Polished section from microprobe analysis in reflected light, parallel nicols.
Location: Predborice, Bohemia, Czech Republic. Scale: Picture size 0.7 mm.
© Thomas Witzke

Fischesserite Image

Images:

Fischesserite: Ag3AuSe2
Klockmannite: CuSe

Fletcherite Image

Images:

Fletcherite: Cu(Ni,Co)2S4

Comments: Small black crystals of fletcherite in halite. Very unusual association, from a hydrothermal vein cutting a halite deposit.
Location: Bernburg, Saxony-Anhalt, Germany. Scale: Picture size 1.2 mm.
© Thomas Witzke

Fletcherite Image

Images:

Fletcherite: Cu(Ni,Co)2S4

Florencite-(La) Image

Images:

Florencite-(La): (La,Ce)Al3(PO4)2(OH)6

Comments: Green, acicular crystalline aggregates of florencite-(La).
Location: Igarapé Bahia Mine, Carajás ridge, Pará, North Region, Brazil. Scale: Picture size 4.5 mm.
© Thomas Witzke / Abraxas-Verlag

Florencite-(La) Image

Images:

Florencite-(La): (La,Ce)Al3(PO4)2(OH)6

Fluorcaphite Image

Images:

Fluorcaphite: (Ca,Sr,Ce,Na)5(PO4)3F

Comments: Massive, coarsely crystalline, pale yellowish fluorcaphite.
Location: Koashva Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Fluorcaphite Image

Images:

Fluorcaphite: (Ca,Sr,Ce,Na)5(PO4)3F

Fluornatromicrolite Image

Images:

Fluornatromicrolite: (Na,Ca,Bi)2Ta2O6F

Comments: Dark green crystals of fluornatromicrolite in massive white albite..
Location: Alto Quixaba Pegmatite, Quixaba, Frei Martinho, Paraiba, Brazil. Scale: Specimen size 3.8 cm.
© Thomas Witzke

Fluornatromicrolite Image

Images:

Fluornatromicrolite: (Na,Ca,Bi)2Ta2O6F

Fluoro-edenite Image

Images:

Fluoro-edenite: NaCa2Mg5Si7AlO22(F,OH)2

Comments: Two, tabular crystals of fluoro-edenite on matrix.
Location: Mt. Calvario, (Mt. Etna Volcano), Biancavilla, Catania Province, Sicily, Italy. Scale: Picture size 1.8 mm.
© Thomas Witzke / Abraxas-Verlag

Fluoro-edenite Image

Images:

Fluoro-edenite: NaCa2Mg5Si7AlO22(F,OH)2

Foordite Image

Images:

Foordite: Sn++(Nb,Ta)2O6

Comments: Brownish massive foordite.
Location: Manono, Shaba (Katanga), Congo (Zaïre). Scale: Picture size 7 mm.
© Thomas Witzke / Abraxas-Verlag

Foordite Image

Images:

Foordite: Sn++(Nb,Ta)2O6

Comments: Brownish massive foordite.
Location: Manono, Shaba (Katanga), Congo (Zaïre). Scale: Picture size 7 mm.
© Thomas Witzke / Abraxas-Verlag

Francisite Image

Images:

Francisite: Cu3Bi(SeO3)2O2Cl

Comments: Greenish crusts of francisite on matrix.
Location: Baccu Locci Mine, Villaputzu, Cagliari Province, Sardinia, Italy. Scale: Picture size 3.5 mm.
© Thomas Witzke / Abraxas-Verlag

Francisite Image

Images:

Francisite: Cu3Bi(SeO3)2O2Cl

Frankhawthorneite Image

Images:

Frankhawthorneite: Cu2Te++++++O4(OH)2

Comments: Very small green crystals of frankhawthorneite on a light green unknown mineral.
Location: Centennial Eureka Mine, Tintic District, Juab Co., Utah, USA. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag

Frankhawthorneite Image

Images:

Frankhawthorneite: Cu2Te++++++O4(OH)2

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