Material Index for the Spectroscopy Database

Material Index

Name	Formula	Classifications	Members	Image	Specimens	Lines	Spectra	Techniques	Tags
Franklinite	ZnFe^III₂O₄	Spinel (subgroup)	—	Franklinite Franklinite (black) on calcite (white), willemite (pink), and zincite (red), from Sterling Hill, Ogdensburg, Franklin Mining District, Sussex County, New Jersey, USA Rob Lavinsky, iRocks.com – CC-BY-SA-3.0	4	0	0	—	Mineral
Frolovite	Ca[B(OH)₄]₂	Minerals containing OH	—	Frolovite Grayish-white frolovite is encased in the thumbnail matrix, from Solongo B deposit, Vitim Plateau, Buriatia Republic, Transbaikalia, Eastern-Siberian Region, Russia Rob Lavinsky, iRocks.com – CC-BY-SA-3.0	0	2	0	PL/XL	Mineral, Hydroxide
Fuchsite	K(Al,Cr)₃Si₃O₁₀(OH)₂	Muscovite	—		1	0	0	—	Hydroxide , Aluminosilicate , Variety
Gadolinium oxide	Gd₂O₃	REE oxide	—		0	9	1	CL/SEM	REE, Simple oxide , Compound
Gadolinium ultraphosphate	GdP₅O₁₄	REE ultraphosphate	—		1	13	2	CL/SEM, SXES	REE, Phosphate , Synthetic , Compound , Ultraphosphate
Gagarinite-(Y)	NaCaYF₆	REE fluoride	—	Gagarinite-(Y) Brick-red sample of gagarinite-(Y), showing crystalline shape, embeded in cryolite and sugar fluoraluminates like thomsenolite or gearksutite, from Katugin, Chitinskaya Oblast', Transbaikalia, Eastern Siberia, Russian Federation Photo by Joan Rosell, from rosellminerals.com, CC-BY-SA 4.0	0	15	1	CL/SEM	Mineral , REE, Halide
Gahnite	ZnAl₂O₄	Spinel (subgroup)	—	Gahnite Gahnite specimen from Ben Murphy Mica-Beryl Mine, Scaggsville, Howard Co., MD, USA Photo by Ken Larsen, via Smithsonian National Museum of Natural History	0	1	0	PL/XL	Mineral
Galena	PbS	Galena (group), Lead sulphide	—	Galena Galena on quartz, from Krushev dol deposit, Madan ore field, Rhodope Mts, Smolyan Oblast, Bulgaria. Size: 7.1 x 5.4 x 4.1 cm. Rob Lavinsky, iRocks.com – CC-BY-SA-3.0	12	2	1	SXES	Mineral, Sulphide
Gallium arsenide	GaAs	—	—	Gallium arsenide A crystal of gallium arsenide (C) 2007 W. Oelen (via Wikimedia Commons). CC-BY-SA-3.0	2	2	3	SXES	Synthetic , Compound, Arsenide
Gallium nitride	GaN	—	—	Gallium nitride Monocrystal of gallium nitride Photo by Opto-p , Public Domain	0	7	0	CL/SEM	Synthetic , Compound, Nitride
Gallium orthophosphate	GaPO₄	—	—		0	2	0	PL/UV	Phosphate , Orthophosphate , Compound
Gallium oxyhydroxide	GaOOH	—	—		0	4	0	IR	Hydroxide, Compound
Gallium phosphide	GaP	—	—	Gallium phosphide GaP wafer, one-side polished, S-doped n-type, sample length ~2 cm, thickness 0.430 mm Photo by Materialscientist, CC BY-SA 4.0	0	1	0	CL/SEM	Compound, Synthetic
Garnet	(Ca,Fe^II)₃Al₂(SiO₄)₃, X₃Z₂(SiO₄)₃, X=Mg,Ca,Fe,Mn, Z=Al,Fe,Cr,V, (Fe^II,Mg)₃Al₂(SiO₄)₃, (Fe^II,Mn,Ca)₃Al₂(SiO₄)₃	Nesosilicate	Skiagite, Uvarovite, Majorite, Eringaite, Calderite, Spessartine, Andradite-Grossular (series), Menzerite-(Y), Knorringite, Pyrope, Momoiite, Almandine, Morimotoite, Grossular, Fe, Goldmanite	Garnet Garnet specimen from Idaho, USA Photo by Chip Clark, via Smithsonian National Museum of Natural History	1	3	7	CL, EDS	Aluminosilicate , Silicate, Group
Garnierite	—	—	—		2	0	0	—	Informal