Material Index for the Spectroscopy Database

Material Index

Name	Formula	Classifications	Members	Image	Specimens	Lines	Spectra	Techniques	Tags
Sodium hydroxide	NaOH	—	—		0	2	0	IR, Raman	Hydroxide , Compound
Sodium iodide	NaI	—	—		0	1	0	IR	Halide , Compound
Sodium sulphate	Na₂SO₄	—	Thénardite, Thenardite		0	11	0	PL	Sulphate , Synthetic , Compound
Sogdianite	KZr₂Li₃Si₁₂O₃₀	Osumilite (group)	—	Sogdianite Single crystal group of the rare zirconium mineral sogdianite from the type locality: Dara-i-Pioz Glacier, Tien Shan Mountains, Region of Republican Subordination, Tajikistan Photo by David Hospital (via Wikimedia Commons), CC-BY-SA 4.0	0	1	0	PL	Mineral, Silicate
Solongoite	Ca₂B₃O₄(OH)₄Cl	Minerals containing OH	—		0	3	0	PL/XL	Hydroxide , Mineral, Borate
Sorosilicate	[Si₂O₇]^6-	—	—		0	1	0	Reflectance	Group
Spessartine	Mn^II₃Al₂(SiO₄)₃	Minerals containing SiO4, Garnet	—	Spessartine 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)	4	2	2	CL, Reflectance	Mineral, Aluminosilicate
Sphalerite	ZnS, (Zn,Fe)S, (Zn,Fe^II)S	Sphalerite (group), Zinc sulphide	Marmatite	Sphalerite Sphalerite specimen from Rodna, Transilvania, Romania Photo by Ken Larsen, via Smithsonian National Museum of Natural History	12	20	3	CL/SEM, SXES	Mineral, Sulphide
Spinel	MgAl₂O₄, (Fe^II,Mg)(Cr^III,Al)₂O₄, Fe^IIAl₂O₄	Spinel (subgroup)	—	Spinel Pink and blue spinels from Tajikistan Photo by Chip Clark, via Smithsonian National Museum of Natural History	2	23	3	CL/SEM, SXES	Mineral
Spodumene	LiAlSi₂O₆	Clinopyroxene	Kunzite, Hiddenite	Spodumene Kunzite specimen from Oceanview Mine, Pala, CA, USA Photo by Greg Polley, via Smithsonian National Museum of Natural History	4	21	2	CL, CL/SEM	Mineral, Silicate
Stannite	Cu₂FeSnS₄	—	—		1	0	0	—	Mineral, Sulphide
Staurolite	Fe^II₂Al₉Si₄O₂₃(OH)	Minerals containing OH	—	Staurolite 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)	2	0	1	EDS	Hydroxide , Mineral, Silicate , Aluminosilicate
Stibarsen	SbAs	—	—		1	0	0	—	Mineral, Arsenide
Stibiocolumbite	SbNbO₄	—	—		3	0	0	—	Mineral, Niobate
Stibnite	Sb₂S₃	—	—	Stibnite 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)	15	0	1	SXES	Mineral, Sulphide