Material Index for the Spectroscopy Database

Material Index

Name	Formula	Classifications	Members	Image	Specimens	Lines	Spectra	Techniques	Tags
Danburite	CaB₂Si₂O₈	—	—	Danburite Danburite specimen from Madagascar Photo by Ken Larsen, via Smithsonian National Museum of Natural History	2	13	4	PL/Laser, Reflectance	Mineral, Borosilicate
Dark mica	—	Mica	—		0	3	0	Reflectance	Aluminosilicate , Informal
Datolite	CaB(SiO₄)(OH)	Minerals containing SiO4, Minerals containing OH, Datolite (subgroup)	—	Datolite Datolite specimen from Prospect Park, Passaic Co., New Jersey, USA Photo by Svea Lin Rodgers, via Smithsonian National Museum of Natural History	1	11	3	PL/Laser, Reflectance	Hydroxide , Mineral, Borosilicate
Datolite (subgroup)	Ca^II₂MB^III₂Si^IV₂O₈φ₂, M=Fe,□; φ=O,OH	Gadinolite (group)	Homilite, Datolite		0	11	3	PL/Laser, Reflectance	Subgroup
Delafossite	Cu¹⁺Fe^IIIO₂	—	—		1	0	0	—	Mineral
Delhayelite	K₇Na₃Ca₅Al₂Si₁₄O₃₈F₄Cl₂	—	—	Delhayelite Outstanding grey crystals of the rare mineral delhayelite from Rasvumtchorr, Khibiny, Kola, Russian Federation Photo by David Hospital (on wikimedia.org), CC-BY-SA 4.0	0	9	0	PL, PL/XL	Mineral, Hydrated , Aluminosilicate
Diamond	C	Carbon	—	Diamond Image of the Argyle Pink Jubilee Diamond, specimen M52151 (Museums Victoria), from Argyle diamond mine, Western Australia, Australia Photograph by John Broomfield, Museums Victoria, CC-BY	2	63	4	CL, CL/SEM, SXES	Mineral
Diaspore	AlO(OH)	Minerals containing OH, Diaspore (group)	—	Diaspore Diaspore from Selçuk, Muğla Province, Aegean Region, Turkey. This is a particularly robust and gemmy, twinned crystal. It is complete-all-around, and shows unusually well-developed, broad terminations. Ex. Bill Larson Collection. Joe Budd photo Photo by Rob Lavinsky, iRocks.com – CC-BY-SA-3.0	1	5	0	IR, PL/XL	Mineral, Hydroxide
Diaspore (group)	M^IIIO(OH)	—	Groutite, Diaspore, Goethite, Tsumgallite, Montroseite, Bracewellite		0	15	0	IR, PL/XL, Reflectance	Group , Hydroxide
Dickite	Al₂Si₂O₅(OH)₄	Kaolinite (subgroup), Minerals containing OH	—		1	0	0	—	Hydroxide , Mineral, Aluminosilicate
Digenite	Cu_1.8S	Chalcocite-Digenite Group	—		9	0	0	—	Mineral, Sulphide
Dioctahedral sheet silicate	—	—	—		0	2	0	Reflectance	Group , Silicate, Informal
Diopside	Ca(Mg,V)Si₂O₆, CaMgSi₂O₆	Clinopyroxene	—	Diopside Diopside specimen from De Kalb, De Kalb Township, St Lawrence County, New York, USA. Size: 4.3 x 3.3 x 1.9 cm. 2010 Rob Lavinsky, iRocks.com, CC-BY-SA-3.0	15	21	2	Reflectance	Mineral, Silicate
Djurleite	Cu₃₁S₁₆	Chalcocite-Digenite Group	—		12	0	0	—	Mineral, Sulphide
Dolomite	CaMg(CO₃)₂	Dolomite (group), Minerals containing CO3	—	Dolomite Dolomite specimen from Serra das Éguas, Brumado, Bahia, Northeast Region, Brazil Rob Lavinsky, iRocks.com – CC-BY-SA-3.0	19	30	2	CL, PL/Laser	Carbonate , Mineral