's Image Gallery

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

Chukhrovite-(Nd): Ca3(Nd,Y)Al2(SO4)F13·12(H2O)

Comments: SEM image of chukhrovite-(Nd) crystals..
Location: Oxidized zone of the Kara-Oba deposit (Central Kazakhstan). Scale: Scale bar 10µm.
© New Data on Minerals. M., 2005. Vol. 40

Chukhrovite-(Y): Ca3(Y,Ce)Al2(SO4)F13·10(H2O)

Comments: White crystalline crust of chukhrovite-(Y) on matrix.
Location: Kara-Oba deposit, Betpakdala Desert, Central Kazakhstan. Scale: Not Given.
© Diederik Visser

Churchite-(Y): YPO4·2(H2O)

Comments: Acicular, radiating crystals of churchite-(Y).
Location: Leoni mine, Auerbach, Bavaria, Germany. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals

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

Chvilevaite: Na(Cu,Fe,Zn)2S2

Comments: Black metallic chvilevaite in sandstone. Part of a drillcore.
Location: La Serena, Region III, Chile. Scale: Specimen Size 0.8x1.8 cm.
© Diederik Visser

Cianciulliite: Mn++++(Mg,Mn++)2Zn2(OH)10·2-4(H2O)

Comments: SEM image of a typical cianciulliite crystals. The abundant incipient cleavage is very obvious. (AmMin, v76:1708).
Location: Franklin, New Jersey, USA. Scale: Field of view is 0.3 mm.
© American Mineralogist

Cinnabar: HgS

Comments: Red single hexagonal (Trigonal) crystal of cinnabar on dolomite.
Location: Fenghuang, Hunan Province, Peoples Republic of China. Scale: Crystal size 1 cm.
© Dave Barthelmy

Cinnabar: HgS  
Edoylerite: Hg++3Cr++++++O4S2

Comments: Yellow prismatic crystals of edoylerite with red cinnabar.
Location: Clear Creek Claim (Clear Creek Mine), New Idria district, San Benito Co., California, USA. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag