Material Index for the Spectroscopy Database

Material Index

Name	Formula	Classifications	Members	Image	Specimens	Lines	Spectra	Techniques	Tags
Nováčekite-I	Mg(UO₂)₂(AsO₄)₂·12H₂O	Minerals containing H2O, Autunite (group), Minerals containing AsO4	—	Nováčekite-I Novácekite (pen for scale) - Mineral collection of Brigham Young University Department of Geology, Provo, Utah - BYU index 4-8076b Photo by Andrew Silver, USGS, Public Domain	0	4	0	PL	Mineral, Arsenate , Hydrated , Uranyl
Oldhamite	(Ca,Mg,Fe)S	Galena (group)	—	Oldhamite Dark grey grains, masses and tiny veins of oldhamite in calcite, from Lichtenberg Absetzer Mine (dump), Ronneburg U deposit, Gera, Thuringia, Germany. Ex Fritz Rüger collection. Field of view 1.5 cm. Photo by Leon Hupperichs (via Wikimedia Commons), CC-BY-SA 3.0	0	2	0	CL/OM	Mineral, Sulphide
Olgite	(Ba,Sr)(Na,Sr,REE)₂Na(PO₄)₂	Minerals containing PO4	—	Olgite Very dark green crystals of the rare phosphate mineral olgite from the type locality in Karnasurt Mountain, Lovozero Massif, Kola Peninsula, Russian Federation Photo by David Hospital (via Wikimedia Commons), CC-BY-SA 4.0	0	3	0	PL, PL/XL	Mineral, Phosphate , Orthophosphate
Oligoclase	(Na,Ca)(Si,Al)₄O₈	Plagioclase	—	Oligoclase Photograph of Oligoclase (var. sunstone, NMNH G3273) from the National Gem Collection, showing golden sheen. Specimen from Tvedestrand, Aust-Agder, Norway Photo by Chip Clark, via Smithsonian National Museum of Natural History	4	14	1	EDS	Aluminosilicate , Variety
Olivenite (group)	AB(XO₄)D, A=Zn,Fe,Mn,Cu; B=Zn,Cu,Mn; X=P,As,Sb; D=OH,O	—	Auriacusite, Olivenite, Eveite, Libethenite, Zincolivenite, Adamite, Zincolibethenite		0	5	0	PL	Group
Olivine	(Mg,Fe^II)₂SiO₄	Nesosilicate	Laihunite, Forsterite, Liebenbergite, Glaucochroite, Fayalite, Peridot, Calcio-olivine, Monticellite, Tephroite, Kirschsteinite	Olivine Forsterite (var. peridot) olivine from St John's Island (Zagbargad), Red Sea, Egypt Rob Lavinsky, iRocks.com – CC-BY-SA-3.0	5	26	2	CL/SEM, EDS	Group , Silicate
Olympite	LiNa₅(PO₄)₂	Minerals containing PO4	—		0	1	0	PL	Mineral, Phosphate , Orthophosphate
Omphacite	(Ca,Na)(Mg,Fe,Al)Si₂O₆	Clinopyroxene	—		1	0	0	—	Mineral
Opal	SiO₂·nH₂O	Minerals containing H2O	—	Opal Dark Jubilee Opal specimen (318.44ct) from Coober Pedy, South Australia, Australia Photo by Chip Clark, via Smithsonian National Museum of Natural History	1	19	1	CL	Mineral, Hydrated
Orthoclase	KAlSi₃O₈	K feldspar	—	Orthoclase Orthoclase specimen (27x17cm), from Minas Gerais, Southeast Region, Brazil Photo by Didier Descouens (via Wikimedia Commons), CC-BY-SA 4.0	16	11	1	CL	Mineral, Aluminosilicate
Orthopyroxene	(Mg,Mn,Fe)SiO₃	Pyroxene	Donpeacorite, Ferrosilite, Enstatite-Ferrosilite (series), Ferrosilite (var. Mg), Enstatite, Enstatite (var. Fe), Protoenstatite		0	5	1	EDS	Silicate, Subgroup
Osmium	Os	—	—	Osmium Cluster of osmium crystals grown by chemical vapor transport Image courtesy www.periodictable.ru, via Wikimedia Commons. CC-BY-3.0	1	16	1	SXES	Mineral , Metal , Element
Osumilite (group)	—	—	Laurentthomasite, Osumilite, Klöchite, Almarudite, Yagiite, Berezanskite, Agakhanovite-(Y), Sugilite, Poudretteite, Osumilite-(Mg), Brannockite, Sogdianite, Roedderite, Oftedalite, Dusmatovite, Shibkovite, Armenite, Milarite, Darapiosite, Eifelite, Merrihueite, Chayesite, Friedrichbeckeite, Aluminosugilite, Trattnerite		0	11	0	PL, PL/XL	Group
Otavite	CdCO₃	Calcite (group), Minerals containing CO3	—	Otavite Otavide crystals (white), from Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia Photo by Christian Rewitzer (via Wikimedia Commons), CC-BY-SA 3.0	0	1	0	Unknown	Carbonate , Mineral
Pabstite	BaSnSi₃O₉	Benitoite (group)	—	Pabstite Tan crystal aggregates of pabstite, from Pacific Cement Quarry, Santa Cruz, CA, USA. Ex. F. Bauer collection Photo (C) 2020 David Hospital (via Wikimedia Commons), CC-BY-SA 4.0	0	1	0	PL/UV	Mineral, Silicate