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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
Caracolite: Na3Pb2(SO4)3Cl
Comments: Nearly transparent colorless thin crystalline crust of caracolite. Location: Iquique, Tarapaca, Chile. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Comments: Flat lying hexagonal prismatic crystals of caracolite on matrix. Location: Challacollo Mine near Oficina Victoria, Chile. Scale: Crystal size 0.5 cm. © John Veevaert
Carboborite: Ca2Mg(CO3)2B2(OH)8·4(H2O)
Comments: Pure crystalline cleavage fragment of carboborite. Location: Inlamartit, Turkey. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
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
Carbokentbrooksite: (Na,[ ])12(Na,Ce)3Ca6Mn3Zr3Nb(Si25O73)(OH)3(CO3)·H2O
Comments: Orange carbokentbrooksite crystals in matrix. Location: Dara-i-Pioz Glacier, Altai Range, Tajikistan. Scale: Specimen size: 31x25x20 mm. © Sergey Vasiliev / Systematic Mineralogy
Carbonatecyanotrichite: Cu++4Al2(CO3,SO4)(OH)12·2(H2O)
Comments: Bright blue micro crystals of carbonate-cyanotrichite on matrix. Location: Widowmaker mine, Fry Canyon, San Juan Co., Utah, USA. Scale: Crystal size 0.1 mm. © Tom Loomis / Dakota Matrix
Carbonate-fluorapatite: Ca5(PO4,CO3)3F Apatite: Ca5(PO4)3(OH,F,Cl)
Comments: Pink, colliform carbonate-fluorapatite on matrix. Location: Tip Top mine, Custer, Custer County, South Dakota, USA. Scale: Size Not Given. © Lou Perloff / Photo Atlas of Minerals
Carbonate-hydroxylapatite: Ca5(PO4,CO3)3(OH) Robertsite: Ca6Mn+++9(PO4)9O6(H2O)6·3(H2O) Apatite: Ca5(PO4)3(OH,F,Cl)
Comments: Black crystals of Robertsite on pink carbonate-hydroxylapatite. Location: Tip Top mine, Custer, Custer County, South Dakota, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
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