Material Index for the Spectroscopy Database

Material Index

Name	Formula	Classifications	Members	Image	Specimens	Lines	Techniques	Tags
Grunerite	☐Fe^II₂Fe^II₅Si₈O₂₂(OH)₂	Mg-Fe-Mn amphibole, Minerals containing OH, Cummingtonite-Grunerite (series)	Amosite	Grunerite Spray of crystals Grunerite on matrix; Photo and collection Fernando Brederodes. From Michigamme Mine, Marquette Co., Michigan, USA (C) 2014 Fernando Brederodes (via Wikimedia Commons). Public Domain.	0	2	Reflectance	Hydroxide , Mineral, Silicate
Gypsum	Ca(SO₄)·2H₂O	Minerals containing H2O, Gypsum (supergroup), Calcium sulphate, Minerals containing SO4	Selenite	Gypsum Image of a specimen of gypsum (M 47268, Museums Victoria), from Selwyn, Queensland, Australia Photograph by John Broomfield, Museums Victoria, CC-BY	3	27	IR, PL, Raman, Reflectance	Mineral, Sulphate , Hydrated
Gypsum (supergroup)	—	—	Pharmacolite, Brushite, Churchite-(Y), Gypsum		0	27	IR, PL, Raman, Reflectance	Supergroup