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.
Cornetite: Cu3(PO4)(OH)3
Comments: Crystals of cornetite on matrix. Location: Etoile Mine, Katanga Province, Dem. Rep. of Congo. Scale: Crystal size 0.5 cm. © John Veevaert
Comments: Radial groups of intense blue cornetite crystals in green malachite. Location: Mine de l'Etoile, Shaba, Lubumbashi Zaire. Scale: Picture size 5 cm. © Fabre Minerals
Cornubite: Cu5(AsO4)2(OH)4 Conichalcite: CaCu(AsO4)(OH)
Comments: Blue green crystalline cornubite alteration of enargite with green conichalcite in white calcite. Location: Lime Bluff Quarry, Lycoming County, Pennsylvania, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Cornwallite: Cu5(AsO4)2(OH)4
Comments: Emerald green botryoidal crystals of cornwallite. Location: Tintic District, Juab County, Utah, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Coronadite: Pb(Mn++++,Mn++)8O16 Crocoite: PbCrO4
Comments: Black coronadite with red crocoite on matrix. Location: Callenberg North (no. 1) open cut, Callenberg, Glauchau, Saxony, Germany. Scale: Specimen size 7 cm. © Thomas Witzke / Abraxas-Verlag
Coronadite: Pb(Mn++++,Mn++)8O16 Iodargyrite: AgI
Comments: Dark, fine-grained massive coronadite with yellowish octahedral iodargyrite crystals. Location: Broken Hill, New South Wales, Australia. Scale: Picture size 3x2 cm. © Dave Barthelmy
Corrensite: (Ca,Na,K)(Mg,Fe,Al)9(Si,Al)8O20(OH)10ˇn(H2O)
Comments: Platy, authigenic chloritic mixed-layer clays (Corrensite?), lining the pore spaces of a sandstone. SEM image from a core sample. Location: Unknown. Scale: Picture size 33 µ-m. © OMNI Laboratories, Inc
Comments: White earthy crust of corrensite on matrix. Location: Bolet, Varmland, Sweden. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Corundum: Al2O3
Comments: corundum (variety Sapphire). Location: Miass, Urals, Russia. Scale: 10 x 8 cm. © Fabre Minerals
Corundum: Al2O3 Zincohogbomite-2N2S: (Zn,Fe++)(2-2x)(Ti)xAl4O8
Comments: Thin-Section (Plane Polarized Light) of a brown, twinned zincohögbomite-2N2S crystal with blue corundum. Location: Mikro-Lakka Emery deposit, Kerketeas Mt, Sámos Island, Aegean Islands Department, Greece. Scale: Picture size 1.1 mm. © Thomas Witzke / Abraxas-Verlag
Comments: Bright red ruby corundum crystals in white marble matrix. Location: Jagdalak (Jagdalek; Jagdalik) Ruby Mine, Sorobi District, Konar (Kunar; Konarh; Konarha; Nuristan) Province, Afghanistan. Scale: 4x3.5x3 cm. © John Betts - Fine Minerals
Corvusite: (Na,Ca,K)V8O20ˇ4(H2O)
Comments: Silky to dull brown corvusite in/on sandstone. Location: Fire Fly Mine, near Delta, Emery County, Utah, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Corvusite: (Na,Ca,K)V8O20ˇ4(H2O) Vanoxite: V++++4V+++++2O13ˇ8(H2O) (?)
Comments: Blue-black, somewhat silky vanoxite, with brown corvusite on sandstone. Location: Club Mine, Uravan, Montrose County, Colorado, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Cosalite: Pb2Bi2S5
Comments: Metallic-lustered cosalite on matrix. Location: Limestone Quarry, Hammerunterwiesenthal, Oberwiesenthal, Erzgebirge, Saxony, Germany. Scale: Picture size 8 mm. © Thomas Witzke / Abraxas-Verlag
Coskrenite-(Ce): (Ce,Nd,La)2(SO4)2(C2O4)ˇ8(H2O)
Comments: SEM image of coskrenite-(Ce) crystals in cavities in epsomite. (CanMin, v37:1453). Location: AIum Cave Bluff, Great Smoky Mountains, Tennessee. Scale: See Image. © Canadian Mineralogist
Costibite: CoSbS
Comments: B&W polished section image of ullmannite-willyamite zoned crystal (Ul-Wi) surrounded by lollingite (Lol) containing lamellae of costibite (Co) in a siderite (Sid) matrix. AmMin v55:10. Location: Consols Mine, Broken Hill, New South Wales, Australia. Scale: See Image. © American Mineralogist
Cotunnite: PbCl2
Comments: White to tan translucent crystalline cotunnite on volcanic slag. Location: Vesuvius, Campania, Italy. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Cotunnite: PbCl2 Burnsite: KCdCu7O2(SeO3)2Cl9
Comments: Images of burnsite grains (dark) in intimate intergrowth with cotunnite (light). Images obtained by scanning electron microscopy. Location: North Breach of the great fissure Tolbachik volcano eruption (1975-1976), Kamchatka Peninsula, Russia. Scale: Scale bar: 20 µ-m. © Canadian Mineralogist
Coulsonite: Fe++V+++2O4
Comments: Evenly disseminated fine-grained coulsonite in subhedral crystals (light gray) scattered through silicate gangue (dark gray), composed of chlorite, muscovite and scapolite. (AmMin, v47:1284). Location: Metamorphosed igneous rocks of the Buena Vista Hills located some twenty miles southeast of the town of Lovelock, Nevada, USA. Scale: Picture Size 135 x. © American Mineralogist
Cousinite: MgU2Mo2O13ˇ6(H2O) (?)
Comments: minute aggregate of greenish black platy crystals of Cousinite. Location: Shinkolobwe, Katanga, Shaba, Zaire. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species