Material Index for the Spectroscopy Database

Material Index

Name	Formula	Classifications	Members	Image	Lines	Spectra	Techniques	Tags
Potassium chloride	KCl	—	Sylvite	Potassium chloride Sylvite (red) with halite (clearish grey). Field of view: 2.6 cm across. Photo by James St. John (https://www.flickr.com/photos/47445767@N05/31861250380/), CC-BY 2.0	10	0	PL	Halide , Synthetic , Compound
Potassium hydroxide	KOH	—	—		5	0	IR	Hydroxide , Compound
Potassium iodide	KI	—	—	Potassium iodide Crystals of potassium iodide Photo by Ondřej Mangl (via Wikimedia Commons), Public Domain	1	0	Unknown	Halide , Synthetic , Compound
Potassium magnesium fluoride	KMgF₃	Perovskite (structure)	Parascandolaite		4	0	IR, Unknown	Halide , Synthetic , Compound
Potassium strontium vanadate	K₂Sr(VO₃)₄	—	—		8	0	CL, PL	Compound, Synthetic
Powellite	CaMoO₄	Scheelite (group), Calcium molybdate, Minerals containing Mo[VI]O4	—	Powellite Powellite from Nasik District, Maharashtra, India. Size: 5 x 3.7 x 3.3 cm. Rob Lavinsky, iRocks.com – CC-BY-SA-3.0	18	2	CL/SEM, SXES	Mineral, Molybdate
Praseodymium fluoride	PrF₃	REE fluoride	—		12	1	CL/SEM	REE, Halide , Synthetic , Compound
Praseodymium ultraphosphate	PrP₅O₁₄	REE ultraphosphate	—		18	2	CL/SEM, SXES	Phosphate , REE, Synthetic , Compound , Ultraphosphate
Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂	Minerals containing OH	—	Prehnite Specimen of prehnite, from Goboboseb Mountain, Erongo Region, Namibia. Specimen M 53300, Museums Victoria Photo by Rodney Start, Copyright Museums Victoria / CC BY (Licensed as Attribution 4.0 International)	7	1	Reflectance	Hydroxide , Mineral, Aluminosilicate
Preobrazhenskite	Mg₃B₁₁O₁₅(OH)₉	Minerals containing OH	—	Preobrazhenskite Outstanding yellow very shiny microcrystals of the rare borate mineral preobrazhenskite from the type locality: Inder B Deposit, Atyrau, Atyrau Oblysy, Kazakhstan. Photo by David Hospital (via Wikimedia Commons), CC-BY-SA-4.0	2	0	PL/XL	Mineral, Hydroxide
Priceite	Ca₂B₅O₇(OH)₅·H₂O	Minerals containing OH, Minerals containing H2O	—		1	0	PL	Hydroxide , Mineral, Hydrated , Borate
Prosopite	CaAl₂F₄(OH)₄	Minerals containing OH	—	Prosopite Lavender prosopite with green amazonite on one end and micro xls. of ralstonite & tomsenolite on the other end, from Morefield Pegmatite Mine; Amelia Co., Virginia, USA Photo by Mark Joseph Wylie (via Wikimedia Commons), Public Domain	6	0	PL, PL/XL	Hydroxide , Mineral, Halide
Pyrite	FeS₂	Pyrite (group)	—	Pyrite Cubic crystals of pyrite (7.0 × 5.0 × 2.5 cm). Found from Huanzala mine, Huallanca, Bolognesi, Ancash, Peru Photo by Ivar Leidus (via Wikimedia Commons), CC-BY-SA 4.0	3	2	CL, SXES	Mineral, Sulphide
Pyrochlore	(Na,Sr,Ca,Ce)₂Nb₂O₆(OH,F), (Sr,Na)₂Nb₂O₆(OH,F), (Ca,Na)₂Nb₂O₆(OH,F)	Pyrochlore (group)	Calciopyrochlore	Pyrochlore Pyrochlore crystals (brown), from Vishnovogorsk, Chelyabinsk Oblast', Southern Urals, Urals Region, Russia. 7.7 x 5.8 x 3.0 cm Rob Lavinsky, iRocks.com – CC-BY-SA-3.0	5	0	PL, PL/Laser	Hydroxide , Niobate
Pyromorphite	Pb₅(PO₄)₃Cl	Apatite (group), Minerals containing PO4	—	Pyromorphite Crystals of pyromorphite Photo by Parent Géry, (via Wikimedia Commons), Public Domain	12	0	PL, PL/Laser	Mineral, Phosphate , Orthophosphate