Thomas Witzke's Image Gallery

Brendelite: (Bi,Pb)2Fe(PO4)(O,OH)3

Comments: Small brown tabular crystals of brendelite on matrix.
Location: Güldener Falk Mine, Schneeberg, Erzgebirge, Sachsen, Germany. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag

Brenkite: Ca2(CO3)F2

Comments: Spherical aggregate of colorless crystals of brenkite.
Location: Schellkopf, Brenk, Eifel Mts, Rhineland-Palatinate, Germany. Scale: Picture size 7.5 mm.
© Thomas Witzke / Abraxas-Verlag

Brianyoungite: Zn3(CO3,SO4)(OH)4

Comments: Silky white aggregates of brianyoungite with small yellow crystals of sulfur on sphalerite.
Location: St Johannes Mine, Wolkenstein, Erzgebirge, Saxony, Germany. Scale: Picture size 3 mm.
© Thomas Witzke / Abraxas-Verlag

Bukovskyite: Fe+++2(AsO4)(SO4)(OH)·7(H2O)  
Zykaite: Fe+++4(AsO4)3(SO4)(OH)·15(H2O)

Comments: Pale beige acicular crystals of bukovskýite with white zykaite.
Location: Christbescherung Mine, Großvoigtsberg, Freiberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 1.3 mm.
© Thomas Witzke / Abraxas-Verlag

Bunsenite: NiO

Comments: Greenish earthy bunsenite.
Location: Johanngeorgenstadt, Erzgebirge, Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Buryatite: Ca3(Si,Fe+++,Al)[SO4][B(OH)4](OH,O)6·12(H2O)

Comments: Vitreous colorless buryatite on matrix.
Location: Solongo B deposit, Buriatia (Buryatia) Republic, Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia. Scale: Picture size 6 mm.
© Thomas Witzke / Abraxas-Verlag

Buttgenbachite: Cu19Cl4(NO3)2(OH)32·2(H2O)

Comments: A blue crystal of buttgenbachite.
Location: Likasi Mine, Likasi, Shaba (Katanga), Congo (Zaïre). Scale: Crystal length 3.1 mm.
© Thomas Witzke / Abraxas-Verlag

Bystrite: (Na,K)7Ca(Si6Al6)O24S4.5·(H2O)  
Lazulite: MgAl2(PO4)2(OH)2

Comments: Brownish-yellow bystrite grains with blue lazulite in an igneous rock.
Location: Malo-Bystrinskoye lazurite deposit, Tunka Valley, Sludyanka, Lake Baikal Region, Russia. Scale: Picture size 7 mm.
© Thomas Witzke / Abraxas-Verlag

Cabalzarite: Ca(Mg,Al,Fe++)2(AsO4)2(H2O,OH)2

Comments: Brownish crystals of cabalzarite on matrix.
Location: Falotta, Tinizong (Tinzen), Sursass (Oberhalbstein), Grischun (Grisons; Graubünden), Switzerland. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Calcurmolite: Ca(UO2)3(MoO4)3(OH)2·11(H2O)

Comments: Calcurmolite in yellow globular aggregates of radiating fibers.
Location: Rabejac, Lodeve, Herault, France. Scale: Picture size 7 mm.
© Thomas Witzke / Abraxas-Verlag

Callaghanite: Cu2Mg2(CO3)(OH)6·2(H2O)

Comments: Blue crystals of callaghanite on matrix.
Location: Gabbs, Nevada, USA. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Calomel: Hg2Cl2

Comments: A grayish aggregate of calomel on a rufous matrix.
Location: Landsberg (Moschellandsberg), Obermoschel, Palatinate, Rhineland-Palatinate, Germany. Scale: Picture size 3 mm.
© Thomas Witzke / Abraxas-Verlag

Camerolaite: Cu4Al2[HSbO4,SO4](OH)10(CO3)·2(H2O)

Comments: Blue spherical aggregates of camerolaite on matrix.
Location: Lubietová (Libethen), Banská Bystrica (Neusohl), Banskobystricky Kraj, Slovak Republic. Scale: Picture size 1.5 mm.
© Thomas Witzke / Abraxas-Verlag

Canavesite: Mg2(CO3)(HBO3)·5(H2O)

Comments: White acicular crystals of canavesite on matrix.
Location: Brosso Mine, Ivrea, Piedmont, Italy. Scale: Picture size 9 mm.
© Thomas Witzke / Abraxas-Verlag

Caoxite: Ca(C2O4)·3(H2O)

Comments: Colorless to white crystals of caoxite on matrix.
Location: Cerchiara Mine, Faggiona, Vara valley, La Spezia province, Liguria, Italy. Scale: Picture size 1.2 mm.
© Thomas Witzke / Abraxas-Verlag

Capgaronnite: HgAg(Cl,Br,I)S

Comments: Very small black prismatic crystals of capgaronnite in matrix.
Location: Cap Garonne, Var, France. Scale: Picture size 0.7 mm.
© Thomas Witzke / Abraxas-Verlag

Carbocernaite: (Ca,Na)(Sr,Ce,Ba)(CO3)2

Comments: Light brownish massive carbocernaite.
Location: Olenii (Oleny) Ruchei Stream apatite deposit, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Caresite: Fe++4Al2(OH)12CO3·3(H2O)

Comments: Tabular brownish-yellow crystals of caresite in matrix.
Location: Poudrette quarry, Mt Saint-Hilaire, Rouville Co., Québec, Canada. Scale: Picture size 2.5 mm.
© Thomas Witzke / Abraxas-Verlag

Carlhintzeite: Ca2AlF7·(H2O)

Comments: Colorless tabular crystals of carlhintzeite on matrix.
Location: Hagendorf, Bayern, Germany. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag

Carlsbergite: CrN  
Kamacite: alpha-(Fe,Ni)

Comments: Polished section showing a small light gray elongated inclusion of carlsbergite in massive kamacite.
Location: Kenton County meteorite, Kenton Co., Kentucky, USA. Scale: Picture size 0.08 mm.
© Thomas Witzke / Abraxas-Verlag