Thomas Witzke's Image Gallery

Cinnabar: HgS  
Edoylerite: Hg++3Cr++++++O4S2

Comments: Yellow prismatic crystals of edoylerite with red cinnabar.
Location: Clear Creek Claim (Clear Creek Mine), New Idria district, San Benito Co., California, USA. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag

Clairite: (NH4)2Fe+++3(SO4)4(OH)3·3(H2O)  
Rostite: AlSO4(OH,F)·5(H2O)

Comments: Brownish crystals of clairite on white massive rostite.
Location: Anna Mine, Alsdorf, Aachen, North Rhine-Westphalia, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Claraite: (Cu,Zn)3(CO3)(OH)4·4(H2O)

Comments: Green, round spherical grain of claraite on fluorite.
Location: Clara Mine, Oberwolfach, Wolfach Valley, Black Forest, Baden-Württemberg, Germany. Scale: Picture size 1.5 mm.
© Thomas Witzke / Abraxas-Verlag

Clarkeite: (Na,Ca,Pb)(UO2)O(OH)·0-1(H2O)

Comments: Massive orange clarkeite.
Location: Bjertnes,Krøderen, Buskerud, Norway. Scale: Picture size 8 mm.
© Thomas Witzke / Abraxas-Verlag

Claudetite: As2O3  
Arsenic: As

Comments: Colorless prismatic crystal of claudetite on native arsenic.
Location: Jáchymov (St Joachimsthal), Krusné Hory (Erzgebirge), Západoceský Kraj, Bohemia, Czech Republic. Scale: Picture size 2 mm.
© Thomas Witzke / Abraxas-Verlag

Cliffordite: UTe3O9

Comments: Small greenish crystals of cliffordite encrusting matrix.
Location: Candelaria Mine, Moctezuma, Sonora, Mexico. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Clinoatacamite: Cu2(OH)3Cl

Comments: Green clinoatacamite on halite and anhydrite.
Location: Bernburg, Stassfurt Deposit, Saxony-Anhalt, Germany. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Clinocervantite: Sb+++Sb+++++O4

Comments: White crystals of Clinocervantite.
Location: Cetine di Cotorniano mine (Cetine mine), Rosia, Siena, Tuscany, Italy. Scale: Picture size 1.5 mm.
© Thomas Witzke / Abraxas-Verlag

Clinochrysotile: Mg3Si2O5(OH)4

Comments: Asbestiform crystals of brown Clinochrysotile.
Location: Callenberg North (no. 2) open cut, Callenberg, Glauchau, Saxony, Germany. Scale: Picture size 6 mm.
© Thomas Witzke / Abraxas-Verlag

Clinomimetite: Pb5(AsO4)3Cl

Comments: Yellow crystals of clinomimetite.
Location: Johanngeorgenstadt, Erzgebirge, Saxony, Germany. Scale: Size of the largest crystal 12 mm.
© Thomas Witzke / Abraxas-Verlag

Cobaltarthurite: CoFe+++2(AsO4)2(OH)2·4(H2O)  
Arseniosiderite: Ca2Fe+++3(AsO4)3O2·3(H2O)

Comments: Olive-greenish crystalline druse of cobaltarthurite with spherical arseniosiderite.
Location: Pastrana, Mazarrón, Murcia, Spain. Scale: Picture size 1.3 mm.
© Thomas Witzke / Abraxas-Verlag

Cobaltaustinite: CaCo(AsO4)(OH)

Comments: Green, tabular crystal of cobaltaustinite.
Location: Rappold Mine, Neustädtel, Schneeberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 3 mm.
© Thomas Witzke / Abraxas-Verlag

Cobaltkoritnigite: (Co,Zn)(AsO3OH)·(H2O)  
Erythrite: Co3(AsO4)2·8(H2O)

Comments: Dark purplish cobaltkoritnigite with pink erythrite.
Location: Schneeberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Cobaltlotharmeyerite: Ca(Co,Fe,Ni)2(AsO4)2(OH,H2O)2

Comments: Brown crystalline aggregates of cobaltlotharmeyerite on matrix.
Location: Sauschwart Mine, Neustädtel, Schneeberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 5 mm..
© Thomas Witzke / Abraxas-Verlag

Cobalttsumcorite: Pb(Co,Fe)2(AsO4)2(OH,H2O)2

Comments: Brown crystals of cobalttsumcorite.
Location: Rappold Mine, Neustädtel, Schneeberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Coccinite: Hg++I2 (?)  
Sulfur: S8

Comments: Orange-red coccinite on sulfur. Due to the volatility of the mineral at room temperature, the sample is preserved in a closed vial. The photo was made through the vial, therefore the sharpness is reduced.
Location: Lichtenberg Mine, Ronneburg U Deposit, Gera district, Thuringia, Germany. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag

Cohenite: (Fe,Ni,Co)3C

Comments: Bluish gray, metallic iridescent crystals of cohenite on matrix.
Location: Kopeisk, Chelyabinsk Oblast', Urals Region, Russia. Scale: 2.3 mm.
© Thomas Witzke / Abraxas-Verlag

Colquiriite: CaLiAlF6

Comments: Colorless tabular crystals of colquiriite on matrix.
Location: Serra Branca pegmatite, Pedra Lavrada, Picuí, Paraíba, Northeast Region, Brazil. Scale: Picture size 0.8 mm.
© Thomas Witzke / Abraxas-Verlag

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): (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