Agate SiO2
Quartz, microcrystalline Youngite
Open
Condor agate from the mountain range near San Rafael City, in Mendoza Province, Argentina.
©
Photo by Luis de los Santos (via Wikimedia Commons), CC-BY-SA 3.0
3
6
CL
Variety, Simple oxide
Alkali feldspar (Na,K)AlSi3 O8
Feldspar (group) Ferrisanidine , Sanidine , Kokchetavite , Anorthoclase , Albite , K feldspar , Sanidine, high , Rubicline
Open
Specimen of anorthoclase, from Mount Franklin, 9 km north of Daylesford, Victoria, Australia. Specimen M 24369.1, Museums Victoria
©
Photo by William D Birch, Copyright Museums Victoria / CC BY (Licensed as Attribution 4.0 International)
14
1
CL
Aluminosilicate , Subgroup
Anhydrite CaSO4
Minerals containing SO4 , Calcium sulphate —
Open
Anhydrite specimen from Naica Mine, Chihuahua, Mexico. Photographed at the Harvard Museum of Natural History
©
Photo by Alcinoe (via wWikimedia Commons), Public Domain
177
1
CL
Mineral, Sulphate
Baddeleyite ZrO2
Zirconia —
Open
Baddeleyite from Phalaborwa, Limpopo Province, South Africa
©
Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
8
1
CL
Mineral, Simple oxide
Barium fluoride BaF2
—
Frankdicksonite
13
1
CL
Halide , Compound
Baryte BaSO4
Baryte (group) , Minerals containing SO4 —
Open
Barite specimen from Elk Creek locality, Dalzell, Meade County, South Dakota, USA. Size: 2.3 x 1.3 x 1.3 cm
©
Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
41
1
CL
Mineral, Sulphate
Calcium orthosilicate Ca2 SiO4
—
Larnite
0
2
CL
Silicate , Synthetic , Compound
Celsian BaAl2 Si2 O8
Feldspar (group) —
Open
Celsian feldspar, from Incline, Mariposa County, California, USA
©
Photo by Astynax, Public Domain
2
2
CL
Mineral, Aluminosilicate
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
1
1
CL
Mineral, Simple oxide
Epoxy C21 H25 ClO5
—
—
1
1
CL
Synthetic, Compound , Organic
Iron(I) phosphide Fe3 P
—
Schreibersite
0
1
CL
Synthetic, Compound , Phosphide
Mogánite SiO2
Silica —
Open
Specimen of mogánite from the Barranco del Medio Almud, Mogán (Gran Canaria) Spain. Miguel Calvo Collection.
©
Photo by Joaquim Callen (Bergminer on wikimedia.org), CC-BY-SA 4.0
3
1
CL
Mineral, Simple oxide
Opal SiO2 ·n H2 O
Minerals containing H2O —
Open
Dark Jubilee Opal specimen (318.44ct) from Coober Pedy, South Australia, Australia
©
Photo by Chip Clark, via Smithsonian National Museum of Natural History
19
1
CL
Mineral, Hydrated
Orthoclase KAlSi3 O8
K feldspar —
Open
Orthoclase specimen (27x17cm), from Minas Gerais, Southeast Region, Brazil
©
Photo by Didier Descouens (via Wikimedia Commons), CC-BY-SA 4.0
10
1
CL
Mineral, Aluminosilicate
Thorite ThSiO4
Minerals containing SiO4 , Zircon (group) , Thorium silicate —
Open
Thorite specimen, Brevik,Telemark, Norway, size: 4.3cm
©
Photo by Weirdmeister (via Wikimedia Commons), CC-BY-SA 4.0
19
2
CL
Mineral, Silicate
