Material Index for the Spectroscopy Database

Material Index

Name	Formula	Classifications	Members	Image	Lines	Spectra	Techniques	Tags
Rubidium chloride	RbCl	—	—	Rubidium chloride Crystal structure of rubidium chloride © Image by Benjah-bmm27 (via Wikimedia Commons), Public Domain	1	0	Unknown	Halide , Synthetic , Compound
Ruby	Al₂O₃	Corundum	—	Ruby Ruby specimen from Tingsongkhla, Thailand © Photo by Chip Clark, via Smithsonian National Museum of Natural History	3	1	CL/SEM	Variety, Simple oxide
Ruthenium	Ru	—	—	Ruthenium A 99.95% pure ruthenium crystal grown by chemical vapour deposition (CVD) © (C) 2024 François Nguyen (via Wikimedia Commons). CC-BY-2.0	8	2	SXES	Mineral , Metal , Element
Rutherfordine	UO₂(CO₃)	Minerals containing CO3	—	Rutherfordine Rutherfordine specimen from Musonoi Mine, Kolwezi, Kolwezi District, Katanga Copper Crescent, Katanga, Democratic Republic of Congo. Field of view 7 mm © Photo by Leon Hupperichs (via Wikimedia Commons), CC-BY-SA 3.0	4	0	PL	Carbonate , Mineral, Uranyl
Rutile	TiO₂	Rutile (group), Titanium dioxide	Ilmenorutile, Strüverite	Rutile Rutile specimen from Alexander County, North Carolina, USA. 2.5cm in size. © Photo by Carlin Green, USGS, Public Domain	2	4	CL, CL/SEM, EDS, SXES	Mineral, Simple oxide
Sabugalite	HAl(UO₂)₄(PO₄)₄·16H₂O	Minerals containing H2O, Minerals containing PO4, Autunite (group)	—	Sabugalite Sabugalite, Monts d´Ambrazac, Margnac, France, size: 45 mm © Photo by Weirdmeister (via Wikimedia Commons), CC-BY-SA 4.0	11	0	PL	Mineral, Orthophosphate , Phosphate , Uranyl , Hydrated
Sakhaite	Ca₄₈Mg₁₆(BO₃)₃₂(CO₃)₁₆·2(H₂O,HCl)	Minerals containing H2O, Minerals containing BO3, Minerals containing CO3	—		2	0	PL/XL	Mineral, Hydrated , Borate , Carbonate
Saléeite	Mg(UO₂)₂(PO₄)₂(H₂O)₁₀	Minerals containing H2O, Minerals containing PO4, Autunite (group)	—	Saléeite Saléeite from Ranger No. 3 Deposit/Pit, Ranger Mine, Jabiru, Kakadu National Park, Northern Territory, Australia. Size: 9.6 x 6.9 x 4.5 cm. © Rob Lavinsky, iRocks.com – CC-BY-SA-3.0	13	0	PL	Mineral, Orthophosphate , Uranyl , Hydrated , phosphate
Samarium ultraphosphate	SmP₅O₁₄	REE ultraphosphate	—		8	2	CL/SEM, SXES	REE, Phosphate , Synthetic , Compound , Ultraphosphate
Sanidine	(K,Na)(Si,Al)₄O₈	Alkali feldspar	—	Sanidine Sanidine specimen from Itrongay, Mahasoa East Commune, Betroka District, Anosy Region, Tuléar Province, Madagascar. Size: 2.5 x 1.9 x 1.0 cm, 47.09 ct. © Rob Lavinsky, iRocks.com – CC-BY-SA-3.0	5	0	PL, PL/XL	Mineral, Aluminosilicate
Sapphire	Al₂O₃	Corundum	—	Sapphire Sapphire specimen from Malawi © Photo by Greg Polley, via Smithsonian National Museum of Natural History	11	0	CL/FloodGun, CL/SEM, PL/Laser, Unknown	Variety, Simple oxide
Scandium	Sc	—	—	Scandium Scandium crystals in a sample jar © (C) 2012 Rrausch1974 (via Wikimedia Commons). CC-BY-SA-3.0	8	2	SXES	Metal , Element
Scandium orthophosphate	ScPO₄	REE phosphate	Scandium yttrium orthophosphate, Eu3+ doped		4	0	PL/UV, TL	Phosphate , Orthophosphate , Compound
Scapolite	(Na,Ca)₄[Al₃Si₉O₂₄]Cl	Scapolite (group)	—	Scapolite Faceted scapolite © Photo by Мухин Кирилл (via Wikimedia Commons), CC-BY-SA 4.0	46	0	PL, PL/XL	Aluminosilicate , Series
Scheelite	CaWO₄	Calcium tungstate, Scheelite (group), Minerals containing W[VI]O4	Molybdoscheelite	Scheelite Luminescence of scheelite (blue) on muscovite under UV shortwave illumination, from Yaogangxian Mine, Yaogangxian W-Sn ore field, Yizhang Co., Chenzhou Prefecture, Hunan Province, China © Photo by Géry PARENT (via Wikimedia Commons), Public Domain	198	8	CL, CL/SEM, EDS, Reflectance, SXES	Mineral, Tungstate