Material Index for the Spectroscopy Database

Material Index

Name	Formula	Classifications	Members	Image	Lines	Spectra	Techniques	Tags
Helvite	Mn₄Be₃(SiO₄)₃S	—	—	Helvite 12 mm crystal of Helvite (orange) in matrix of feldspar (pink) with microcrystals of muscovite (green), from Tongbai County, Nanyang Prefecture, Henan Province, China © Rob Lavinsky, iRocks.com – CC-BY-SA-3.0	1	0	—	Sulphide , Silicate
Hematite	Fe₂O₃	Hematite (group), Iron(III) oxide	Titanohematite	Hematite Specimen of hematite, from Paraburdoo, Western Australia. Specimen M 41658, Museums Victoria. © Photo by John Bosworth, Copyright Museums Victoria / CC BY (Licensed as Attribution 4.0 International)	2	1	SXES	Mineral, Simple oxide
Hematite (group)	M^III₂O₃, M=Al,Cr,Fe,V,Ti	—	Eskolaite, Corundum, Karelianite, Hematite, Tistarite		0	0	—	Group , Simple oxide
Hercynite	Fe^IIAl₂O₄	Spinel (subgroup)	—	Hercynite Hercynite specimen from In den Dellen quarries, Niedermendig, Mendig, Laach lake volcanic complex, Eifel, Rhineland-Palatinate, Germany, Image width: 5 mm. © Image by Fred Kruijen (via Wikimedia Commons), CC-BY-SA-3.0-NL	0	0	—	Mineral
Herderite	CaBe(PO₄)F	Herderite (subgroup)	—	Herderite Herderite specimen from the Shigar Valley, Skardu District, Baltistan, Pakistan © Rob Lavinsky, iRocks.com – CC-BY-SA-3.0	6	0	—	Mineral, Orthophosphate , Phosphate
Herderite (group)	—	Gadolinite (supergroup)	Drugmanite (subgroup), Herderite (subgroup)		0	0	—	Group
Herderite (subgroup)	—	Herderite (group)	Herderite, Bergslagite, Hydroxylherderite		0	0	—	Subgroup
Hetaerolite	ZnMn^III₂O₄	Spinel (subgroup)	—		0	0	—	Mineral
Heulandite	(Ca,Na)_2-3Al₃(Al,Si)₂Si₁₃O₃₆·12H₂O	Zeolite (group)	—		0	0	—	Hydrated , Aluminosilicate , Subgroup
Hexacelsian	Ba(Al₂Si₂O₈)	Feldspar (group)	—		0	0	—	Mineral, Aluminosilicate
Hibonite	Ca_0.98Mn_0.02Al₁₂O₁₉, Ca[Al₁₂]O₁₉	—	—	Hibonite Hibonite, 1.6 cm sharp & lustrous crystal, from Esiva eluvials, Maromby Commune, Amboasary District, Anosy (Fort Dauphin) Region, Tuléar Province, Madagascar © Photo by Kelly Nash - http://www.mindat.org/photo-171147.html, CC BY 3.0	10	0	—	Mineral
Hiddenite	LiAlSi₂O₆	Spodumene	—	Hiddenite Crystals of spodumene (var. hiddenite) with albite and smoky quartz, from Paprok Mine, Kamdesh District, Nuristan Province, Afghanistan © Photo by Parent Géry, CC BY-SA 3.0	3	1	CL/SEM	Variety, Silicate
Hieratite	K₂SiF₆	—	—		3	0	—	Mineral, Halide
Hingganite-(Ce)	BeCe(SiO₄)(OH)	Gadolinite (subgroup)	—		0	0	—	Mineral, Hydroxide , Silicate
Hingganite-(Nd)	Nd₂☐Be₂Si₂O₈(OH)₂	Gadolinite (subgroup)	—		0	0	—	Mineral, Hydroxide , Silicate