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Chenite: Pb4Cu(SO4)2(OH)6
Comments: Sky blue crystalline coating of chenite on matrix. Location: Silberhutte, Altenau, Harz Mountains, Germany. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Chernykhite: (Ba,Na)V+++,Al)2(Si,Al)4O10(OH)2
Comments: Dark green flake of chernykhite. Location: Balasauskandyk, Juzno-Kazahstan, Kazakhstan. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Chesterite: (Mg,Fe++)17Si20O54(OH)6 Magnetite: Fe++Fe+++2O4
Comments: Green platy chesterite in black, metallic magnetite. Location: Near Missoula, Missoula County, Montana, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Chestermanite: Mg2(Fe+++,Mg,Al,Sb+++++)BO3O2 Ludwigite: Mg2Fe+++BO5
Comments: Black capillary crystals of ludwigite with green inclusions of chestermanite in impure marble. Location: Near Potter Pass, Fresno County, California, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Childrenite: Fe++Al(PO4)(OH)2·(H2O)
Comments: Columnar, brown, prismatic, crystalline aggregate of childrenite with dark blue lazulite. Location: Rapid Creek, Yukon Territory, Canada. Scale: See Image. © Jeff Weissman / Photographic Guide to Mineral Species
Chiolite: Na5Al3F14
Comments: White translucent crystalline massive chiolite. Location: Ivigtut, Arksukjiord, Greenland. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Chlorartinite: Mg2(CO3)Cl(OH)·3(H2O)
Comments: Opaque white crystalline chlorartinite on volcanic glass. Location: Vulcan Tolbachik, Kamchatka District, Russian Far East, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Chloromenite: Cu9O2(SeO3)4Cl6 Melanothallite: Cu2OCl2
Comments: Olive green crystalline chloromenite on blue-green melanothallite. Location: North Break, Second Cone of main fracture eruption, Tolbachik Volcano, Kamchatka District, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Chlorothionite: K2Cu(SO4)Cl2
Comments: Pale blue granular crystalline chlorothionite. Location: Vesuvius, Napoli, Campania, Italy. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Chloroxiphite: Pb3CuCl2(OH)2O2 Mendipite: Pb3Cl2O2 Crednerite: CuMnO2
Comments: Green, opaque granular chloroxiphite with mendipite and black crednerite. Location: Higher Pitts Farm, Priddy, Mendip Hills, Somerset, England. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Comments: Radiating compact with clear to white crystalline mendipite with black crednerite and green chloroxiphite. Location: Mendip Hills, Somerset, England. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Choloalite: CuPb(Te++++O3)2 Hessite: Ag2Te
Comments: Sparse green crusts of choloalite with metallic hessite. Location: McAlpine Mine, Tuolumne County, California, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Chondrodite: (Mg,Fe++)5(SiO4)2(F,OH)2 Warwickite: Mg(Ti,Fe+++,Al)(BO3)O
Comments: Black crystalline warwickite with tan chondrodite in white marble. Location: Amity, near Warwick, Orange County, New York, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Chromdravite: NaMg3(Cr,Fe+++)6(BO3)3Si6O18(OH)4
Comments: Dark green chromdravite grains in matrix. Location: Srednyaya Padma U-V deposit, Zaonezhie peninsula, Lake Onega, Karelia Republic, Northern Region, Russia. Scale: Specimen Size 2 cm. © Jeff Weissman / Photographic Guide to Mineral Species
Chromite: Fe++Cr2O4 Antigorite: (Mg,Fe++)3Si2O5(OH)4
Comments: Chromite veins in yellow to green antigorite with picrolite, chromian antigorite and dolomite (polished section). Location: Wood's Mine, near 'Texas', Little Britain Township, Lancaster County, Pennsylvania, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Chromite: Fe++Cr2O4 Theophrastite: Ni(OH)2
Comments: Green pearly scaly theophrastite coatings on massive dark chromite. Location: Vermion Region, near Thessaloniki, Kedriki Makedhonia, Greece. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Chvaleticeite: (Mn++,Mg)SO4·6(H2O)
Comments: Powdery mass of chvaleticeite. Location: Chvaletice, Bohemia, Vychodocesky, Czech Republic. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Claringbullite: Cu++4(OH)7Cl
Comments: Velvety micro botryoids of claringbullite lining vug in slag. Location: Val Varenna, Pegli, Genova, Liguria, Italy. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Clausthalite: PbSe
Comments: black massive and botryoidal clausthalite on matrix. Location: Lasovice, Mittelbuhmen, Stredocesky, Czech Republic. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Clinochalcomenite: CuSeO3·2(H2O)
Comments: Blue-green crystalline coating of clinochalcomenite on sulfide ore. Location: Mina El Dragon, Potosi, Bolivia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species