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Cannonite: Bi2O(OH)2SO4 Bismuthinite: Bi2S3
Comments: Opaque white crystal tufts of cannonite on quartz crystals with dark, metallic bismuthinite. Location: Marysvale, Piute County, Utah, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
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
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
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
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
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
Carletonite: KNa4Ca4Si8O18(CO3)4(OH,F)·(H2O)
Comments: Several crystals of blue and white carletonite. Location: Mt. St. Hilaire, Quebec, Canada. Scale: 2.8 x 2.7 cm. © John Veevaert
Carlfriesite: CaTe++++2Te++++++O8
Comments: Pale bright yellow crystalline carlfriesite botryoids on white calcite. Location: Moctezuma, Sonora, Mexico. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Carlhintzeite: Ca2AlF7·(H2O)
Comments: Colorless tabular crystals of carlhintzeite on matrix. Location: Hagendorf, Bayern, Germany. Scale: Picture size 1 mm. © Thomas Witzke / Abraxas-Verlag
Carlinite: Tl2S
Comments: B&W image of carlinite fragments (opaque grains), with some quartz (transparent gralns. (AmMin, v60:559). Location: Carbonaceous limestones exposed in the east pit of ihe Carlin mine, Nevada, USA. Scale: See Image. © American Mineralogist
Carlosruizite: K6(Na,K)4Na6Mg10(Se++++++O4)12(IO3)12·12(H2O)
Comments: Trigonal crystal of carlosruizite. (AmMin, v79:1003). Location: Platy crystals in samples of iquiqueite obtained by leaching caliche amarillo (yellow nitrate ore) from samples in the Iquique office of the former Servicio de Minas del Estado of Chile. Scale: Scale Bar 10 µm. © American Mineralogist
Carlosturanite: (Mg,Fe++,Ti,Mn)21(Si,Al)12O28(OH)34
Comments: White to tan fibrous coatings of carlosturanite on matrix. Location: Val Varaita, Cuneo, Piemonte, Italy. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
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
Carmichaelite: (Ti,Cr,Fe)[O2-x(OH)x],x~0.5
Comments: Backscattered electron (BSE) image of a grain of carmichaelite included in pyrope in GRPy-40. (AmMin 85:794). Location: Garnet Ridge, an ultramafic diatreme on the Colorado Plateau in Arizona.. Scale: See Image. © American Mineralogist