Click on thumbnails for a larger image. Please be patient since some of these pages of thumbnail images take some time to load. These mineral photos are copyrighted by their owners and may not be used without permission.
Cafetite: Ca(Fe,Al)2Ti4O12·4(H2O)
Comments: Ocher-colored aggregates of cafetite in pegmatite, intimately mixed with iron hydroxides. Location: Mount Rasvumchorr, Khibiny Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Cahnite: Ca2B(AsO4)(OH)4
Comments: White, translucent cahnite crystal on hodgkinsonite. Location: Franklin, Sussex County, New Jersey, USA. Scale: Size Not Given. © Lou Perloff / Photo Atlas of Minerals
Calaverite: AuTe2
Comments: Quartz matrix with abundant calaverite crystals. Location: Cripple Creek, Teller County, Colorado, USA. Scale: Size Not Given. © Lou Perloff / Photo Atlas of Minerals
Calciborite: CaB2O4
Comments: Translucent colorless crystalline calciborite. Location: Novofrolovskoye, Sverdlovsk District, Northern Urals, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Calcioancylite-(Ce): CaCe(CO3)2(OH)·(H2O)
Comments: Gray calcio-ancylite pseudomorphs after remondite crystals up to 4 cm long. Location: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mt Saint-Hilaire, Rouville Co., Québec, Canada. Scale: 5x4x4 cm. © John Betts - Fine Minerals
Calcioandyrobertsite-1M: KCaCu5(AsO4)4[As(OH)2O2]·2(H2O) Tennantite: (Cu,Fe)12As4S13
Comments: Vein of blue calcioandyrobertsite in massive dark gray tennantite. The vein of calcioandyrobertsite extends for 0.8cm. Location: Tsumeb Mine, Tsumeb, Namibia. Scale: Specimen size 1.1 x 0.5 cm. © John Veevaert
Calcioburbankite: Na3(Ca,REE,Sr)3(CO3)5 Aegirine: NaFe+++Si2O6
Comments: Tan crystal spray of calcioburbankite on dark green aegirine. Location: Mont Saint Hilaire, Quebec, Canada. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Calciocopiapite: CaFe+++4(SO4)6(OH)2·19(H2O)
Comments: Greenish yellow crystalline crust of calciocopiapite. Location: Borate, San Bernardino County, California, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Calcioferrite: Ca4Fe++(Fe+++,Al)4(PO4)6(OH)4·12(H2O)
Comments: Whitish green botryoidal crust of calcioferrite on matrix. Location: Brugues, Barcelona, Catalunya, Spain. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Calciogadolinite: CaREE(Fe+++)Be2Si2O10 Gadolinite-(Y): Y2Fe++Be2Si2O10
Comments: Black vitreous, metamict massive gadolinite-(Y) also known as calcian gadolinite. Location: Ytterøya Mine, Røvika, Ytterøya (island), Levanger, Nord-Trondelag, Norway. Scale: See Image. © Rruff Database