Material Index for the Spectroscopy Database

Material Index

Name	Formula	Classifications	Members	Image	Specimens	Lines	Spectra	Techniques	Tags
Whewellite	Ca(C₂O₄)·H₂O	Minerals containing H2O	—	Whewellite Specimen of Whewellite from Burgk, Dresden, Saxony, Germany. Size: 1.2 x 1 x .2 cm Rob Lavinsky, iRocks.com – CC-BY-SA-3.0	0	3	0	PL, PL/XL	Mineral , Hydrated , Organic
White mica	—	Mica	Sericite, Illite		0	5	0	Reflectance	Aluminosilicate , Informal
Willemite	(Zn,Mn)₂SiO₄, Zn₂SiO₄	Minerals containing SiO4, Phenakite (group)	—	Willemite Fluorescence image of willemite (green), from Sterling Hill, Ogdensburg, Franklin Mining District, Sussex County, New Jersey, USA. Size: 10.8 x 8.8 x 5.9 cm Rob Lavinsky, iRocks.com – CC-BY-SA-3.0	8	8	4	CL/SEM, PL/Laser, Reflectance	Mineral, Silicate
Witherite	BaCO₃	Aragonite (group), Minerals containing CO3	—	Witherite Wittherite crystal with galena, from Brownley Hill Mine, Nenthead, Alston Moor District, North Pennines, Cumberland, Cumbria, England, UK. Size: 6 x 5.3 x 4 cm Rob Lavinsky, iRocks.com – CC-BY-SA-3.0	4	20	2	CL/SEM, SXES	Carbonate , Mineral
Wolframite	(Fe,Mn)WO₄	—	—	Wolframite Wolframite specimen from Panasqueira, Covilhã, Castelo Branco District, Portugal. Size: 4.9 x 3.9 x 3.8 cm. Rob Lavinsky, iRocks.com – CC-BY-SA-3.0	8	4	2	CL, Reflectance	Tungstate
Wollastonite	CaSiO₃	Pyroxenoid, Wollastonite (group)	Wollastonite-2M, Wollastonite-1A	Wollastonite Fans of white wollastonite needle shaped crystals in bluish marble from Nezdice, Šumava, Czech Republic. Size 15 x 12 cm. © Zbynek Burival / Mineralexpert.org / (CC-BY-SA-4.0)	5	18	3	CL/SEM, Reflectance, SXES	Mineral, Silicate
Wollastonite (group)	—	—	Cascandite, Barrydawsonite-(Y), Wollastonite, Tanohataite, Vistepite, Murakamiite, Dalnegorskite, Sérandite, Schizolite, Serandite, Ferrobustamite, Bustamite, Mendigite, Pectolite		0	21	3	CL/SEM, Reflectance, SXES	Group , Silicate
Wollastonite-1A	CaSiO₃	Wollastonite	—		2	0	0	—	Silicate , Polytype
Wollastonite-2M	CaSiO₃	Wollastonite	—		1	0	0	—	Silicate , Polytype
Wulfenite	PbMoO₄	Scheelite (group), Minerals containing Mo[VI]O4	—	Wulfenite Wulfenite specimen from Red Cloud Mine, La Paz Co., AZ, USA Photo by Chip Clark, via Smithsonian National Museum of Natural History	1	14	0	PL, Raman	Mineral, Molybdate
Wurtzite	ZnS	Zinc sulphide, Wurtzite (group)	Wurtzite-2H	Wurtzite Wurtzite specimen from Yaogangxian Mine, Yizhang County, Chenzhou Prefecture, Hunan Province, China. This piece features several highly lustrous, sharp, deep reddish-brown, platy hexagonal crystals measuring up to 11 mm associated with white Calcite. Photo by Rob Lavinsky, iRocks.com – CC-BY-SA-3.0	0	1	0	IR	Mineral, Sulphide
Wurtzite (group)	MX, M=Cd,Mn,Zn; X=S,Se	—	Cadmoselite, Wurtzite, Buseckite, Greenockite, Rambergite		0	3	0	IR, PL	Group , Sulphide, Selenide
Wüstite	FeO	Periclase (group), Iron(II) oxide	—		1	0	0	—	Mineral, Simple oxide
Xenotime (group)	—	—	Chernovite-(Y), Wakefieldite-(Ce), Wakefieldite-(Nd), Xenotime-(Y), Pretulite, Wakefieldite-(La), Xenotime-(Yb), Wakefieldite-(Y)		0	256	21	CL, CL/SEM, EDS, PL/Laser, Reflectance	Group
Xenotime-(Y)	YPO₄	Yttrium orthophosphate, REE phosphate, Minerals containing PO4, Xenotime (group)	—	Xenotime-(Y) Xenotime with gold-coloured rutile inclusions, from Novo Horizonte, Bahia, Northeast Region, Brazil. Size: 2.8 x 1.6 x 1.5 cm Rob Lavinsky, iRocks.com – CC-BY-SA-3.0	5	246	20	CL, CL/SEM, EDS, PL/Laser, Reflectance	Phosphate , Mineral , REE, Orthophosphate