Interactive IRUG Spectrum

Section: 6

Minerals and pigments (MP)

Page: 395

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Details

IRUG filename: IMP00395	Data type: Infrared	IRUG material class: Minerals and pigments (MP)
Sample type: Reference material	Common name(s): Pokrovskite	Chemical/botanical name(s): (hydrated)? carbonate with hydroxyl or halogen (class), rosasite (mineral group)
CAS name: Pokrovskite (Mg2(CO3)(OH)2.1/2H2O)	Sample source 1: KCA Quarry	Source location 1: San Benito County, California, US
Sample source 2: British Museum	Source location 2: Great Russell Street, London, WC1B-3DG, UK	Sample identifier 2: BM1988,74
Sample source 3: The Natural History Museum, National Museums of Scotland	Source location 3: Cromwell Road, London, SW7 5BD, UK, Edinburgh, UK	Color: Pink, pale
Other: Isostructural w/ malachite, spectrum similar to rosasite and malachite groups, compare with artinite, presence of H2O not confirmed by spectrum which matches that given in the original description in Ivanov	Application: Transmission FTIR spectroscopy	Mode: Tran
Literature Reference: Jones, G. C., and B. Jackson. Infrared Transmission Spectra of Carbonate Minerals. London: Chapman & Hall, 1993., Fitzpatrick, J. J. "Pokrovsite: Its Possible Relationship to Mcguinnessite and the Problem of Excess Water." Ed. C. T. Prewitt. Abstracts and Programme of the Fourteenth General Meeting of the International Mineralogical Association (1986): 101., Ivanov, O. K., Yu. A. Malinovskii, and Yu. V. Mozherin. "Pokrovskite, Mg2(CO3)(OH)2*0.5H20, a New Mineral from the Zlatogorskaya Layered Intrusive, Kazakhstan." Zapiski Vsesoyunznyi Mineralogicheskoe Obshchestva 113 (1984): 90-95., White, J. S. "Pokrovskite, a Common Mineral." The Mineralogical Record 18 (1987): 135-36.	Originating institution name: Natural History Museum, National Museums of Scotland	Originating institution acronym: NHM
Linear formula: Mg2(CO3)(OH)2*0.5H2O	CAS registry no: 89885-19-8	Other analytical methods: EDS (Mg only), SEM, XRD (6610F or near NHM std=pokrovskite)