Interactive IRUG Spectrum

Section: 6

Minerals and pigments (MP)

Page: 462

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Details

IRUG filename: IMP00462	Data type: Infrared	IRUG material class: Minerals and pigments (MP)
Sample type: Reference material	Common name(s): Barytocalcite	Chemical/botanical name(s): Anhydrous normal carbonate (class), aragonite (mineral group)
Source location 1: Bleagill, Alston Moor, Cumbria, UK	Sample source 2: British Museum	Source location 2: Great Russell Street, London, WC1B-3DG, UK
Sample identifier 2: BM40687	Sample source 3: The Natural History Museum, National Museums of Scotland	Source location 3: Cromwell Road, London, SW7 5BD, UK, Edinburgh, UK
Color: Colorless	Other: Trimorphous with alstonite and paralstonite, spectrum is distinguishable from those of both polymorphs, compare spectrum with those of other members of aragonite group	Application: Transmission FTIR spectroscopy
Mode: Tran	Literature Reference: Jones, G. C., and B. Jackson. Infrared Transmission Spectra of Carbonate Minerals. London: Chapman & Hall, 1993., Scheetz, B. E., and W. B. White. "A Vibrational Study of the Order/disorder in the Alkaline Earth Doublt Carbonates." Eos (Transactions of the American Geophysical Union, Washington) 56.5 (1975): 463., Scheetz, B. E., and W. B. White. "Vibrational Spectra of the Alkaline Earth Double Carbonates." American Mineralogist 62.1, 2 (1977): 36-50.	Originating institution name: Natural History Museum, National Museums of Scotland
Originating institution acronym: NHM	Molecular formula: C2 Ba Ca O6	Linear formula: BaCa(CO3)2
Other analytical methods: EDS (Ca:Ba=1:1), SEM, XRD (7452F NHM std)