Mineral Specimen Images (C)

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

Chrisstanleyite: Ag2Pd3Se4  
Hakite: (Cu,Hg)3(Sb,As)(Se,S)3

Comments: Polished section showing chrisstanleyite (chr) is present as a single grain intergrown with clausthalite (cl) and eucairite (eu). cp (chalcopyrite), ha (hakite), di (selenian digenite), bo (bornite). (CanMin, v43:689).
Location: Low-temperature selenium-rich assemblage at Predborice, Czech Republic. Scale: See Image.
© Canadian Mineralogist

Chrisstanleyite: Ag2Pd3Se4  
Tischendorfite: Pd8Hg3Se9  
Tiemannite: HgSe

Comments: Polished section (PPL) showing tischendorfite (T, cream), clausthalite (Cl, off-white), tiemannite (Tie, gray), ankerite (black) and chrisstanleyite (C, greenish buff to pale brown).
Location: Eskaborner Stollen (Eskeborn Adit) at Tilkerode, Harz, Mountains, Germany. (CanMin v40:739). Scale: Picture Size 275 µm.
© Canadian Mineralogist

Christelite: Zn3Cu2(SO4)2(OH)6·4(H2O)  
Paratacamite: (Cu,Zn)2(OH)3Cl

Comments: Robins-egg blue christelite with dark green paratacamite on matrix.
Location: San Francisco mine, Sierra Gorda, Chile. Scale: 3 cm.
© John Veevaert

Chromatite: CaCrO4

Comments: Yellow, powdery coating of chromatite over carbonate rock. Associated minerals in the crust are halite and fluorapatite.
Location: Ma'aleh Adumim, Hatrurim formation, West Bank, Palestine. Scale: Box Size 29x29 mm.
© Pavel M. Kartashov

Chrombismite: Bi16CrO27

Comments: B&W image showing the relationship of grains of chrombismite to grains of chalcopyrite, pyrite and gold. (CanMin, v35:35).
Location: Quartz veins in the Jialu gold nine, Luonan County, Shaanxi Province, China. Scale: Feld of view: 0.12 mm.
© Canadian Mineralogist

Chromceladonite: KCrMg(Si4O10)(OH)2

Comments: Greenish gray, pearly aggregate of chromceladonite.
Location: Srednaja Padma, Onega Karelia, Russian Federation. Scale: Box Size 2 x 2 cm.
© Sonke Stolze / Systematic Minerals

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

Chromferide: Fe3Cr1-x (x=0,6)

Comments: Irregular nugget of chromferide.
Location: Verchnevinsk, Ural, Russia. Scale: Nugget Size 1.5 mm.
© Thomas Witzke

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

Chromium: Cr

Comments: Small silvery-gray metallic grain of native chromium.
Location: Sichuan, China. Scale: Grain size 0.7 mm.
© Thomas Witzke / Abraxas-Verlag

Chromphyllite: (K,Ba)(Cr,Al)2[AlSi3O10](OH,F)2

Comments: Small grains of blue-green chromphyllite.
Location: Slyudyanka, Southern Lake Baikal, Russia. Scale: Peg Size 1 cm.
© Sergey Vasiliev / Systematic Mineralogy

Chrysoberyl: BeAl2O4

Comments: Chrysoberyl (alexandrite) sixling twin crystal.
Location: Zimbabwe. Scale: Crystal size 2.3 cm.
© Richard Dale / Dale Minerals

Chrysoberyl: BeAl2O4

Comments: Chrysoberyl (Alexandrite) crystal on matrix with excellent color change (Daylight, Tungsten Bulb).
Location: Malyshevo, Yekaterina Oblast', Urals, Russia. Scale: Crystal size 1.2 cm.
© Kevin Ward

Chrysocolla: (Cu,Al)2H2Si2O5(OH)4·n(H2O)

Comments: Botryoidal chrysocolla lining a vug.
Location: Inca del Oro, Copiapó, Chile. Scale: 7.5 x 6 cm.
© Fabre Minerals

Chrysocolla: (Cu,Al)2H2Si2O5(OH)4·n(H2O)  
Cuprite: Cu2O

Comments: Semi-metallic, dark reddish gray, cuprite crystals on blue chrysocolla.
Location: Mashamba West mine, Shaba, Congo. Scale: 7.5 x 4.7 x 2.3 cm.
© Fabre Minerals

Chrysocolla: (Cu,Al)2H2Si2O5(OH)4·n(H2O)  
Tenorite: CuO

Comments: Lustrous black botryoidal Tenorite mostly covering a sky-blue massive chrysocolla matrix.
Location: 79 mine, Banner district, Pinal Co., Arizona. Scale: 5.5 x 3 cm.
© Dan Weinrich

Chrysotile: Mg3Si2O5(OH)4

Comments: Polished slab of chrysotile asbestos minerals showing the fibrous, chatoyant crystal patterns.
Location: Globe, Globe-Miami District, Gila Co., Arizona, USA. Scale: 8x7x1 cm.
© John Betts - Fine Minerals

Chukanovite: Fe2(CO3)(OH)2

Comments: Left - acicular to fibrous individuals of chukanovite. Right - spherulites of chukanovite up to 1 mm (Eur. J. Mineral, v19:891).
Location: Found in cavities of weathered fragments of the Dronino ataxite iron eteorite found near the Dronino village, Kasimov district, Ryazan’ Oblast, Russia. Scale: See Images.
© Eur. J. Mineral