Mineral Specimen Images (C)

Calciohilairite: CaZrSi3O9·3(H2O)  
Kuzmenkoite-Mn: (K,Na)2(Mn,Fe)(Ti,Nb)4[Si4O12]2(OH)4·5(H2O)

Comments: White rhombododecahedral crystals of calciohilairite associated with orange=brown stout prismatic kuzmenkoite-Mn on matrix.
Location: Flora Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: FOV ~1x1 cm.
© Pavel M. Kartashov

Calciopetersite: CaCu6[(PO4)2(PO3OH)(OH)6]·3(H2O)

Comments: SEM image of calciopetersite in fine radiating spray; note the hexagonal outline of crystals. (CanMin, v43:1393).
Location: Domasiov nad Bystrici, Czech Republic. Scale: See Image.
© J. Sejkora / Canadian Mineralogist

Calciotantite: Ca(Ta,Nb)4O11  
Tantalite-(Mn): MnTa2O6

Comments: SEM image showing calciotantite (CT), manganotatntalite (MTT), microlite (MT) and lithiowodginite (LW) association.
Location: Granitic pegmatites, Kalba, Kazakhstan. Scale: Scale bar 100 µm and 10 µm.
© Diederik Visser

Calciouranoite: (Ca,Ba,Pb)U2O7·5(H2O)  
Metacalciouranoite: (Ca,Na,Ba)U2O7·2(H2O)

Comments: Cryptocrystalline looking, greasy yellow blotches, of amorphous calciouranoite (probably, in part, dehydrated to matacalciouranoite).
Location: Oktyabr'skoye Mo-U deposit, east Transbaikal region, Russia. Scale: See Image.
© Rruff Database

Calcite: CaCO3  
Quartz: SiO2

Comments: Purple-colored druse of amethystine quartz and white calcite.
Location: Rio Grande do Sul, Brazil. Scale: Sample size 20 cm.
© Dave Barthelmy

Calcite: CaCO3  
Beryl: Be3Al2Si6O18

Comments: Transparent emerald, the green variety of beryl on calcite (marble) matrix.
Location: Coscuez, Boyacá, Colombia. Scale: 2.5 x 2.5 cm.
© Fabre Minerals

Calcite: CaCO3

Comments: White, divergent calcite scalenohedral crystals.
Location: Santa Eulalia, Chihuahua, S.A., Mexico. Scale: 8 cm.
© Dave Barthelmy

Calcite: CaCO3

Comments: Cream-colored crystalline aggregate of calcite crystals.
Location: Rio Grande do Sul, Brazil. Scale: 20 cm.
© Dave Barthelmy

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

Calcybeborosilite-(Y): (REE,Ca)2[ ](B,Be)2(SiO4)2(OH,O)2  
Bafertisite: Ba(Fe++,Mn)2TiSi2O7(O,OH)2

Comments: Greenish-gray calcybeborosilite-(Y) grain intergrow with orange bafertisite platelet (upper left corner of the later). Associatied minerals are violet fluorite, white albite, black aegirine, light-yellow (red under UV lamp) cleiophane.
Location: Darai-Pioz (Dara-i-Pioz; Dara-Pioz) Glacier, Alai (Alayskiy) Range, Tien Shan Mts, Region of Republican Subordination, Tajikistan. Scale: Picture Size 12x10 mm.
© Pavel M. Kartashov

Calderite: (Mn++,Ca)3(Fe+++,Al)2(SiO4)3

Comments: Dark red brown translucent crystalline calderite.
Location: Hazaribag, Bihar, India. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Calderonite: Pb2Fe+++(VO4)2(OH)

Comments: Secondary electron image showing a cluster of prismatic calderonite crystals. (AmMin, 88:1704).
Location: Santa Marta, Badajoz province, Spain. Scale: See Image.
© American Mineralogist

Caledonite: Pb5Cu2(CO3)(SO4)3(OH)6

Comments: Transparent, blue caledonite crystals.
Location: Mammoth mine, Tiger, Pinal County, Arizona, USA. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals

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

Calumetite: Cu(OH,Cl)2·2(H2O)

Comments: Light blue botryoidal coatings of calumetite on tarnished copper with green paratacamite.
Location: Centennial Mine, Houghton County, Michigan, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Calvertite: Cu5Ge0.5S4

Comments: SEM images of massive-granular calvertite. The texture is made apparent by the presence of a thin rind of chalcocite (white) on the calvertite grains. (CanMin, v45:1519).
Location: Partly oxidized specimen from the Tsumeb mine, Tsumeb, Namibia. Scale: See Image.
© Canadian Mineralogist

Calzirtite: CaZr3TiO9  
Augite: (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)2O6  
Richterite: Na(CaNa)(Mg,Fe++)5[Si8O22](OH)2

Comments: Gray irregular grain of calzirtite (see arrow) in fibrous augite with dark red richterite.
Location: Jacupiranga Mine, Cajati, Sao Paulo, Brazil. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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

Cameronite: AgCu7Te10  
Rickardite: Cu7Te5  
Vulcanite: CuTe

Comments: Gray metallic massive cameronite showing subconchoidal fracture associated with purple rickardite and bronzy plates of vulcanite in a mass of tellurium, co-type specimen.
Location: Good Hope mine, Vulcan District, Gunnison County, Colorado, USA. Scale: See Image.
© Rruff Database