Crocoite PbCrO4
Minerals containing Cr[VI]O4 —
Open
Image of specimen 'M 27029 Crocoite' (Museums Victoria) from Dundas, West Coast Region, Tasmania, Australia
Photo by Benjamin Healley, Copyright Museums Victoria / CC BY (Licensed as Attribution 4.0 International)
0
1
0
PL
Mineral
Cryolite Na3 AlF6
—
—
Open
Cryolite specimen from the Ivigtut Cryolite deposit, Ivittuut, Arsuk Firth, Arsuk, Kitaa Province, Greenland. Size: 8.8 x 6.7 x 5 cm
Photo by Didier Descouens (via Wikimedia Commons), CC-BY-SA-3.0
0
5
0
IR, PL
Mineral, Halide
Cryolithionite Na3 Al2 (LiF4 )3
—
—
Open
White massive cryolithionite from Ivigtut, Ivittuut, Arsuk Fjord, Sermersooq, Greenland.
Photo by David Hospital (via Wikimedia Commons), CC-BY-SA 4.0
0
1
0
PL/XL
Mineral, Halide
Cummingtonite ☐Mg2 Mg5 Si8 O22 (OH)2 , ☐{Mg,FeII }2 {Mg,FeII }5 Si8 O22 (OH)2
Minerals containing OH , Cummingtonite-Grunerite (series) , Mg-Fe-Mn amphibole —
Open
Brownish-colored sprays of cummingtonite needles, from near West Chesterfield, western Hampshire County, western Massachusetts, USA
(C) 2017 James St. John (via Wikimedia Commons). CC-BY-2.0
1
2
0
Reflectance
Hydroxide , Mineral, Silicate
Cummingtonite-Grunerite (series) ◻{Mg2 }{Mg5 }(Si8 O22 )(OH)2 — ◻{FeII 2 }{FeII 5 }(Si8 O22 )(OH)2
Mg-Fe-Mn amphibole Cummingtonite , Grunerite , Cummingtonite, Fe2+
0
4
0
Reflectance
Hydroxide , Silicate , Series
Cuprite Cu2 O
—
—
Open
Specimen of cuprite, from Poteryaevskoe mine, Rubtsovskoe Cu-Pb-Zn deposit, North-western Altay, Russian Federation. Specimen M 51563, Museums Victoria.
Photo by Benjamin Healley, Copyright Museums Victoria / CC BY (Licensed as Attribution 4.0 International)
7
0
0
—
Mineral, Simple oxide
Curite Pb3 (H2 O)2 [(UO2 )4 O4 (OH)3 ]2
Minerals containing OH , Minerals containing H2O —
Open
Curite from Katanga, DR Congo, exhibited at the Mineralogical Museum, Bonn, Germany
Photo by Elke Wetzig, CC-BY-SA
0
4
0
PL
Hydroxide , Mineral, Uranyl , Hydrated
Cyclosilicate [Sin 3n ]2n -
—
—
0
1
0
Reflectance
Group
Danburite CaB2 Si2 O8
—
—
Open
Danburite specimen from Madagascar
Photo by Ken Larsen, via Smithsonian National Museum of Natural History
2
13
3
PL/Laser, Reflectance
Mineral, Borosilicate
Dark mica —
Mica —
0
3
0
Reflectance
Aluminosilicate , Informal
Datolite CaB(SiO4 )(OH)
Minerals containing OH , Minerals containing SiO4 , Datolite (subgroup) —
Open
Datolite specimen from Prospect Park, Passaic Co., New Jersey, USA
Photo by Svea Lin Rodgers, via Smithsonian National Museum of Natural History
1
11
3
PL/Laser, Reflectance
Hydroxide , Mineral, Borosilicate
Delafossite Cu1+ FeIII O2
—
—
1
0
0
—
Mineral
Delhayelite K7 Na3 Ca5 Al2 Si14 O38 F4 Cl2
—
—
Open
Outstanding grey crystals of the rare mineral delhayelite from Rasvumtchorr, Khibiny, Kola, Russian Federation
Photo by David Hospital (on wikimedia.org), CC-BY-SA 4.0
0
9
0
PL, PL/XL
Mineral, Hydrated , Aluminosilicate
Diamond C
Carbon —
Open
Image of the Argyle Pink Jubilee Diamond, specimen M52151 (Museums Victoria), from Argyle diamond mine, Western Australia, Australia
Photograph by John Broomfield, Museums Victoria, CC-BY
2
63
4
CL, CL/SEM, SXES
Mineral
Diaspore AlO(OH)
Minerals containing OH , Diaspore (group) —
Open
Diaspore from Selçuk, Muğla Province, Aegean Region, Turkey. This is a particularly robust and gemmy, twinned crystal. It is complete-all-around, and shows unusually well-developed, broad terminations. Ex. Bill Larson Collection. Joe Budd photo
Photo by Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
1
5
0
IR, PL/XL
Mineral, Hydroxide
