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Chalcophanite: (Zn,Fe++,Mn++)Mn++++3O7·3(H2O)
Comments: Large mass of rounded gray-black chalcophanite. Location: Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA. Scale: 14x11x7 cm. © John Betts - Fine Minerals
Chalcophyllite: Cu++18Al2(AsO4)3(SO4)3(OH)27·33(H2O)
Comments: Altered rhyolite vug lined with chalcophyllite crystals. The largest crystal is 0.5 cm across and several have the perfect "stop sign" hexagon form. Location: Majuba Hill Mine, Pershing County, Nevada, USA. Scale: Picture size 2 cm. © John Veevaert
Chalcopyrite: CuFeS2 Oulankaite: (Pd,Pt)5(Cu,Fe)4SnTe2S2 Telargpalite: (Pd,Ag)3Te Tulameenite: Pt2FeCu
Comments: Gray long-prismatic crystal of oulankaite with light grayish telargpalite and pale yellowish-white rims of tulameenite in massive yellowish chalcopyrite. Polished section (from microprobe analysis) in reflected light. Location: Lukkulaisvaara ultrabasic Massif, Olanga (Oulanka) River, Oulanka plutonic complex, Karelia Republic, Northern Region, Russia. Scale: Picture size 0.12 mm. © Thomas Witzke / Abraxas-Verlag
Chalcopyrite: CuFeS2 Moncheite: (Pt,Pd)(Te,Bi)2
Comments: White moncheite with chalcopyrite (orange, blue and violet tarnishing colors) in silicate matrix. Polished section (from microprobe analysis) in reflected light. Location: Lukkulaisvaara ultrabasic Massif, Olanga (Oulanka) River, Oulanka plutonic complex, Karelia Republic, Northern Region, Russia. Scale: Picture size 0.11 mm. © Thomas Witzke / Abraxas-Verlag
Chalcopyrite: CuFeS2 Quartz: SiO2
Comments: Well-formed crystals of chalcopyrite and quartz. Location: Boldut mine, 61 level (350 meters deep), Cavnic, Maramures, Rumania. Scale: 5.5 x 3.5 cm. © Fabre Minerals
Chalcosiderite: CuFe+++6(PO4)4(OH)8·4(H2O)
Comments: Pale bluish transparent crystal of chalcosiderite on matrix. Location: Cornwall, England. Scale: Size Not Given. © Lou Perloff / Photo Atlas of Minerals
Chalcostibite: CuSbS2
Comments: Dark gray crystals of chalcostibite on white quartz matrix. Location: Boldut mine, Cavnic Maramures, Rumania. Scale: 7 x 7 x 3.5 cm. © Fabre Minerals
Comments: Partial crystal of chalcostibite. The crystal is partially altered to blue azurite and green malachite. Location: Gar El Anz, Morocco. Scale: 3 x 1.8 cm. © John Veevaert
Chalcothallite: (Cu,Fe)6Tl2SbS4
Comments: Gray-black, platy chalcothallite aggregates in matrix. Location: Taseq Slope, Ilimaussaq Complex, Narsaq, Kitaa, West Greenland, Denmark. Scale: Specimen Size 6x20 mm. © Diederik Visser
Challacolloite: KPb2Cl5
Comments: White to transparent challacolloite crystals on matrix. Location: Eruption of 1855, Mount Vesuvius, Campania, Italy. Scale: See Image. © Jeff Weissman / Photographic Guide to Mineral Species