Spinel
MgAl2 O4 , (FeII ,Mg)(CrIII ,Al)2 O4
Spinel (subgroup)
—
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
—
Maghemite , Dellagiustaite , Gahnite-Hercynite (series) , Hausmannite , Deltalumite , Jacobsite , Vuorelainenite , Hercynite, syn , Cr spinel , Magnesiocoulsonite , Hercynite , Coulsonite , Cochromite , Franklinite , Trevorite , Titanomaghemite , Galaxite , Magnesioferrite , Spinel , Thermaerogenite , Spinel, Mg, Fe, Cr , Guite , Gahnite , Magnetite , Magnesiochromite , Manganochromite , Chromite , Zincochromite , Cuprospinel , Hetaerolite
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 Mg3-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
Lead tungstate , Scheelite (group)
—
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