Material Index for the Spectroscopy Database

Material Index

Name	Formula	Classifications	Members	Image	Lines	Techniques	Tags
Fayalite	Fe^II₂(SiO₄), Fe₂SiO₄	Olivine	—		0	—	Mineral, Silicate
Fedorite	(K,Na)_2.5(Ca,Na)₇Si₁₆O₃₈(OH,F)₂·3.5H₂O	—	—	Fedorite Fibrous foliated, violet Charoite aggregation with black radiating Aegirine (Aegirine suns") and orange Fedorite crystals, from Vostochnyi Mine, Murun-Massif, Yakutia, Russia © © Raimond Spekking / CC BY-SA 4.0 (via Wikimedia Commons)	4	—	Mineral, Silicate , Hydroxide , Hydrated
Fedorovskite	Ca₂Mg₂B₄O₇(OH)₆	—	—	Fedorovskite Outstanding brown crystals of the very rare mineral fedorovskite from the type locality in Buryatia (Solongo, Ozernoe Area, Buryatia Republic, Russian Federation). Ex.Dr.Hartel collection with label included © Photo (C) 2019 David Hospital (via Wikimedia Commons), CC-BY-SA 4.0	2	—	Mineral, Hydroxide , Borate
Feitknechtite	Mn^IIIO(OH)	—	—		0	—	Mineral, Hydroxide
Feldspar (group)	KAlSi₃O₈ - NaAlSi₃O₈ - CaAl₂Si₂O₈	—	Buddingtonite, Hexacelsian, Alkali feldspar, Paracelsian, Celsian, Plagioclase, Kumdykolite, Reedmergnerite, Svyatoslavite, Banalsite, Filatovite, Slawsonite, Stronalsite	Feldspar (group) Plagioclase feldspar displaying cleavage © Photo via USGS, Public Domain	23	—	Aluminosilicate , Group
Feldspathoid (group)	—	—	Sodalite (group), Calcrinite (group), Nepheline, Trinepheline, Leucite, Davidsmithite, Trikalsilite, Kalsilite, Yoshiokaite		0	—	Aluminosilicate , Group
Fergusonite-(Y)	YNbO₄	—	—		7	—	Mineral, Niobate
Fergusonite-(Y)-β	YNbO₄	—	—		0	—	Mineral, Niobate
Feroxyhyte	Fe^IIIO(OH)	Iron oxide/hydroxide	—		0	—	Mineral, Hydroxide
Ferri-hellandite-(Ce)	(Ca₃Ce)Ce₂Fe^III☐₂B₄Si₄O₂₂(OH)₂	Hellandite (group)	—		0	—	Mineral, Hydroxide , Borosilicate
Ferri-mottanaite-(Ce)	Ca₄Ce₂Fe^III(Be_1.5☐_0.5)[Si₄B₄O₂₂]O₂	Hellandite (group)	—		0	—	Mineral, Borosilicate
Ferriakasakaite-(Ce)	CaCeFe^IIIAlMn^II(Si₂O₇)(SiO₄)O(OH)	Allanite (group)	—		0	—	Mineral, Aluminosilicate , Hydroxide
Ferriakasakaite-(La)	CaLa(Fe^IIIAlMn^II)[Si₂O₇][SiO₄]O(OH)	Allanite (group)	—		0	—	Mineral, Aluminosilicate , Hydroxide
Ferriallanite-(Ce)	CaCe(Fe^IIIAlFe^II)[Si₂O₇][SiO₄]O(OH)	Allanite (group)	—		0	—	Mineral, Aluminosilicate , Hydroxide
Ferriallanite-(La)	CaLa(Fe^IIIAlFe^II)[Si₂O₇][SiO₄]O(OH)	Allanite (group)	—		0	—	Mineral, Aluminosilicate , Hydroxide