Spinel (FeII ,Mg)(CrIII ,Al)2 O4 , MgAl2 O4
Spinel (subgroup) Magalox
Open
Pink and blue spinels from Tajikistan
©
Photo by Chip Clark, via Smithsonian National Museum of Natural History
20
3
CL/SEM, SXES
Mineral
Spinel (subgroup) AII DIII 2 O4
—
Dellagiustaite , Spinel, Mg, Fe, Cr , Magnetite , Galaxite , Deltalumite , Guite , Gahnite-Hercynite (series) , Coulsonite , Hausmannite , Hercynite , Trevorite , Thermaerogenite , Cuprospinel , Jacobsite , Franklinite , Hetaerolite , Zincochromite , Cr spinel , Cochromite , Titanomaghemite , Magnesioferrite , Maghemite , Vuorelainenite , Magnesiocoulsonite , Gahnite , Spinel , Magnesiochromite , Manganochromite , Chromite
0
0
—
Subgroup
Spodumene LiAlSi2 O6
Clinopyroxene Kunzite , Hiddenite
Open
Kunzite specimen from Oceanview Mine, Pala, CA, USA
©
Photo by Greg Polley, via Smithsonian National Museum of Natural History
6
2
CL, CL/SEM
Mineral, Silicate
Springcreekite BaVIII 3 (PO4 )(PO3 OH)(OH)6
Plumbogummite (group) —
0
0
—
Mineral, Hydroxide , Orthophosphate , Phosphate
Staurolite FeII 2 Al9 Si4 O23 (OH)
—
—
Open
Twinned staurolite crystals with muscovite, from Jenipapo mine, Itinga, Minas Gerais, Brazil. Specimens M 51013 and 51015, Museums Victoria.
©
Photo by Benjamin Healley, Copyright Museums Victoria / CC BY (Licensed as Attribution 4.0 International)
0
1
EDS
Mineral, Silicate , Aluminosilicate , Hydroxide
Steinhardtite Al
Aluminium —
0
0
—
Mineral, Metal
Stetindite-(Ce) Ce(SiO4 )
Zircon (group) —
0
0
—
Mineral, Silicate
Stevensite (Ca,Na)x 3-y Si4 O10 (OH)2
Smectite (group) —
0
0
—
Mineral, Hydroxide , Silicate
Stibnite Sb2 S3
—
—
Open
Specimen of stibnite from Banat, Romania. Specimen M 36618, Museums Victoria.
©
Photo by Benjamin Healley, Copyright Museums Victoria / CC BY (Licensed as Attribution 4.0 International)
0
1
SXES
Mineral, Sulphide
Stilleite ZnSe
Zinc selenide , Sphalerite (group) —
0
0
—
Mineral, Selenide
Stillwellite-(Ce) CeBSiO5
—
—
Open
Crystal of stillwellite-(Ce) (red, 1.3cm) in matrix, from Darai-Pioz Glacier, Alai Range, Tien Shan Mts, Region of Republican Subordination, Tajikistan. Size: 4.4 x 3.8 x 2.3 cm
©
Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
4
0
—
Mineral, Borosilicate
Stishovite SiO2
Rutile (group) , Silica —
0
0
—
Mineral, Simple oxide
Stolzite PbWO4
Scheelite (group) , Lead tungstate —
Open
Stolzite crystals, to 3.5 mm across, perched on a limonitic matrix, from Broken Hill, New South Wales, Australia
©
Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
16
0
—
Mineral, Tungstate
Stoppaniite FeIII 2 Be3 Si6 O18 ·H2 O
Beryl (group) —
0
0
—
Hydrated , Mineral, Silicate
Strelkinite Na2 (UO2 )2 (VO4 )2 ·6H2 O
Carnotite (group) —
0
0
—
Hydrated , Mineral, Vanadate , Uranyl
