Sonolite
MnII 9 (SiO4 )4 (OH)2
Manganhumite (subgroup)
—
0
0
—
Mineral, Hydroxide , Silicate
Sperrylite
PtAs2
Pyrite (group)
—
0
0
—
Mineral, Arsenide
Spessartine
MnII 3 Al2 (SiO4 )3
Garnet
—
Open
Specimen of spessartine, from Broken Hill, New South Wales, Australia. Specimen M 37302, Museums Victoria
©
Photo by Sarah McCaffrey, Copyright Museums Victoria / CC BY (Licensed as Attribution 4.0 International)
0
1
CL
Mineral, Aluminosilicate
Sphalerite
ZnS
Zinc sulphide , Sphalerite (group)
—
Open
Sphalerite specimen from Rodna, Transilvania, Romania
©
Photo by Ken Larsen, via Smithsonian National Museum of Natural History
9
3
CL/SEM, SXES
Mineral, Sulphide
Sphalerite (group)
—
—
Metacinnabar , Stilleite , Ishiharaite , Sphalerite , Rudashevskyite , Hawleyite , Coloradoite , Tiemannite , Browneite
0
0
—
Group
Sphene
CaTiSiO5
—
—
Open
Titanite on amphibole, from Wannenköpfe, Ochtendung, Eifel region, Germany. Image width: 2mm
©
2010 Fred Kruijen (via Wikimedia Commons), CC-BY-SA-3.0
0
0
—
Silicate
Spherocobaltite
CoCO3
Calcite (group)
—
0
0
—
Mineral, Carbonate
Spinel
(FeII ,Mg)(CrIII ,Al)2 O4 , MgAl2 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
—
Hercynite , Spinel , Hetaerolite , Coulsonite , Maghemite , Gahnite-Hercynite (series) , Galaxite , Chromite , Spinel, Mg, Fe, Cr , Cuprospinel , Gahnite , Franklinite , Trevorite , Hausmannite , Magnesiochromite , Magnesioferrite , Titanomaghemite , Manganochromite , Deltalumite , Cochromite , Vuorelainenite , Guite , Cr spinel , Magnetite , Dellagiustaite , Jacobsite , Zincochromite , Thermaerogenite , Hercynite, syn , Magnesiocoulsonite
0
0
—
Subgroup
Spodumene
LiAlSi2 O6
Clinopyroxene
Hiddenite , Kunzite
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