Thomas Witzke's Image Gallery

Kamphaugite-(Y): (Ca1.84REEx)(Y1.46REE0.54-x)(CO3)4(OH)1.65·2(H2O)

Comments: Small white crystals of kamphaugite-(Y).
Location: Tørdal (Hjøndalen), Telemark, Norway. Scale: Picture size 3 mm.
© Thomas Witzke / Abraxas-Verlag

Kankite: Fe+++AsO4·3.5(H2O)

Comments: Greenish botryoidal aggregates of kankite.
Location: Reiche Zeche Mine, Freiberg, Freiberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Karpatite: C24H12

Comments: Pale greenish karpatite with minor red cinnabar.
Location: 4th of July mine, New Idria district, San Benito Co., California, USA. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Kashinite: (Ir,Rh)2S3  
Laurite: RuS2

Comments: Gray kashinite with darker gray laurite. Polished section (from microprobe analysis) in reflected light.
Location: Nizhne-Tagil'skoye (Mednorudyanskoye) Cu Deposit, Nizhnii Tagil, Sverdlovskaya Oblast', Urals Region, Russia. Scale: Picture size 0.2 mm.
© Thomas Witzke / Abraxas-Verlag

Kastningite: (Mn++,Fe++,Mg)Al2(PO4 )2(OH)2·8(H2O)

Comments: Colorless crystals of kastningite.
Location: Silbergrube Quarry, Waidhaus, Vohenstrauß, Oberpfalz, Bavaria, Germany. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag

Kettnerite: CaBi(CO3)OF

Comments: Brown crystals of kettnerite.
Location: Shaft 250, Schlema-Hartenstein area, Erzgebirge, Saxony, Germany. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Keystoneite: Mg0.5[Ni++Fe++(TeO3)3]·4.5(H2O)

Comments: Yellow, feathery keystoneite on quartz.
Location: Mcalpine Mine, Moccasin, Tuolumne Co., California, USA. Scale: Picture size 2 mm.
© Thomas Witzke / Abraxas-Verlag

Kingite: Al3(PO4)2(F,OH)2·8(H2O,OH)

Comments: White flakes of kingite in matrix.
Location: Ronneburg U deposit, Gera district, Thuringia, Germany. Scale: Picture size 1.3 mm.
© Thomas Witzke / Abraxas-Verlag

Klebelsbergite: Sb+++4O4(OH)2(SO4)

Comments: Small, acicular sprays of klebelsbergite with yellow crystals of sulfur on stibnite.
Location: Pereta Mine, Grosseto Province, Tuscany, Italy. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Klockmannite: CuSe

Comments: Klockmannite intergrown with covellite on quartz.
Location: Lichtenberg Mine, Ronneburg U Deposit, Gera district, Thuringia, Germany. Scale: Picture size 7.5 mm.
© Thomas Witzke / Abraxas-Verlag

Klockmannite: CuSe  
Fischesserite: Ag3AuSe2

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

Koechlinite: Bi2MoO6

Comments: Greenish yellow crystal of koechlinite on quartz.
Location: Adam Heber Mine, Neustädtel, Schneeberg district, Erzgebirge, Saxony, Germany. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag

Koenenite: Na4Mg4Cl12·Mg5Al4(OH)22

Comments: Koenenite with cleavage planes.
Location: Bergmannssegen-Hugo Mine, Lehrte, near Hanover, Lower Saxony, Germany. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Kombatite: Pb14(VO4)2O9Cl4  
Hausmannite: Mn++Mn+++2O4

Comments: Yellow kombatite crystals in black hausmannite.
Location: Kombat Mine, Otavi, Namibia. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Koragoite: (Mn++,Fe+++)3(Nb,Ta,Ti)2(Nb,Mn)2(W,Ta)2O20

Comments: Black tabular crystals of koragoite in matrix.
Location: Vez-Dara River Valley, Shakhdara Range, Khorog Region, Gorno-Badakhshan District, Pamir Mts, Tajikistan. Scale: Picture size 1.8 mm.
© Thomas Witzke / Abraxas-Verlag

Korobitsynite: Na3(Ti,Nb)2[Si4O12](OH,O)2·3-4(H2O)

Comments: Colorless prismatic crystals of korobitsynite.
Location: Alluaiv Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: Picture size 2 mm.
© Thomas Witzke / Abraxas-Verlag

Korshunovskite: Mg2Cl(OH)3·3.5-4(H2O)

Comments: White fibrous korshunovskite crystals.
Location: Korshunovskoye skarn Fe Deposit, Irkutsk, Irkutskaya Oblast', Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Kosnarite: KZr++++2(PO4)3

Comments: Pale bluish crystals of kosnarite in matrix.
Location: Mt Mica mine, Paris, Oxford Co., Maine, USA. Scale: Picture size 1.5 mm.
© Thomas Witzke / Abraxas-Verlag

Kotoite: Mg3B2O6

Comments: White massive kotoite crystals.
Location: Baita Mine (Rézbánya), Nucet, Bihor Co., Romania. Scale: Picture size 8 mm.
© Thomas Witzke / Abraxas-Verlag

Kozoite-(Nd): (Nd,La,Sm,Pr)(CO3)(OH)

Comments: White grain of kozoite-(Nd) in matrix.
Location: Niikoba, Hizen-cho, Higashi-Matsuura-gun, Saga Prefecture, Kyushu Island, Japan. Scale: Picture size 6 mm.
© Thomas Witzke / Abraxas-Verlag