Cobaltkieserite Co(SO4 )·H2 O
Minerals containing SO4 , Minerals containing H2O —
1
0
0
—
Mineral, Hydrated , Sulphate
Coesite SiO2
Silica —
Open
Crossed-polars image of coesite grain (gray) ~1 mm across in eclogite. Small colored inclusion is pyroxene. Polycrystalline rim is quartz.
J. Smyth. / Jasperox at en.wikipedia (via Wikimedia Commons), CC-BY-SA 1.0
0
1
1
CL
Mineral, Simple oxide
Colemanite CaB3 O4 (OH)3 ·H2 O
Minerals containing OH , Minerals containing H2O —
0
1
0
PL
Hydroxide , Mineral, Hydrated , Borate
Collophane Ca5 (PO4 )3 (OH,F,Cl)
Apatite —
Open
Collophane from near Drummond, Powell Co., Montana, USA
Photo by Dave Dyet http://www.shutterstone.com http://www.dyet.com, Public Domain
0
6
0
CL/OM
Phosphate , Orthophosphate , Variety
Colquiriite CaLiAlF6
—
—
Open
Specimen of Colquiriite from Serra Branca pegmatite, Pedra Lavrada, Paraíba, Brazil
Photo by Christian Rewitzer (via Wikimedia Commons), CC-BY-SA 3.0
0
1
0
Unknown
Mineral, Halide
Cookeite (Al,Li)3 Al2 (Si,Al)4 O10 (OH)8
Minerals containing OH , Chlorite (group) —
Open
Cookeite specimen from Haddam Neck, Middlesex Co., Connecticut, United States
Photo by Steve Taub, via Smithsonian National Museum of Natural History
6
2
0
PL/XL, Reflectance
Hydroxide , Mineral, Aluminosilicate
Copper Cu
—
—
Open
Macro of native copper about 1 ½ inches (4 cm) in size.
Photo by Jonathan Zander (via WIkimedia Commons), CC-BY-SA 3.0
4
13
1
SXES
Mineral , Metal , Element
Copper(II) hydroxide Cu(OH)2
—
—
0
5
0
IR
Hydroxide, Compound
Cordierite Mg2 Al4 Si5 O18
—
—
Open
Cordierite specimen from Odisha, India
Photo by Greg Polley, via Smithsonian National Museum of Natural History
0
3
0
PL
Mineral, Aluminosilicate
Corundum Al2 O3
Alumina , Hematite (group) Sapphire , Ruby , Sapphire, Eu doped
Open
An image of corundum (rubies and sapphires), specimen M 898 (Museums Victoria), from Victoria, Australia
Photograph by Frank Coffa, Museums Victoria, CC-BY
3
17
2
CL/SEM, SXES
Mineral, Simple oxide
Cotunnite PbCl2
—
—
0
1
0
IR
Mineral, Halide
Covellite CuS
—
—
Open
(C) Raimond Spekking / CC BY-SA 4.0 (via Wikimedia Commons)
5
0
0
—
Mineral, Sulphide
Crandallite (Ca,REE)Al3 (PO4 )(PO3 OH)(OH)6 , CaAl3 (PO4 )(PO3 OH)(OH)6
Minerals containing OH , Minerals containing PO4 , Plumbogummite (group) —
Open
Crandallite from Kovdor, Kola Peninsula, Russia
Photo by Kaethe17 (via Wikimedia Commons), CC-BY-SA 4.0
2
0
0
—
Mineral, Orthophosphate , Phosphate , Hydroxide
Creedite Ca3 Al2 (SO4 )(OH)2 F8 ·2H2 O
Minerals containing OH , Minerals containing SO4 , Minerals containing H2O —
Open
Creedite specimen from Akchatau, Shet District, Karaganda, Kazakhstan
Photo by Chip Clark, via Smithsonian National Museum of Natural History
0
5
0
PL, PL/XL
Hydroxide , Mineral, Sulphate , Hydrated , Halide
Cristobalite SiO2
Silica —
Open
Cristobalite on obsidian from Canyon Butte, Siskiyou County, California, USA
Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
2
4
0
CL, CL/OM, PL/XL, Unknown
Mineral, Simple oxide
