Interactive IRUG Spectrum

Section: 6

Minerals and pigments (MP)

Page: 333

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Details

IRUG filename: IMP00333	Data type: Infrared	IRUG material class: Minerals and pigments (MP)
Sample type: Reference material	Common name(s): Alstonite with minor amount of strontium	Chemical/botanical name(s): Anhydrous normal carbonate (class), aragonite (mineral group)
CAS name: Alstonite (BaCa(CO3)2)	Sample source 1: Brownley Hill Mine	Source location 1: Nenthead, Alston, Cumbria, UK
Sample source 2: British Museum	Source location 2: Great Russell Street, London, WC1B-3DG, UK	Sample identifier 2: BM41707
Sample source 3: The Natural History Museum, National Museums of Scotland	Source location 3: Cromwell Road, London, SW7 5BD, UK, Edinburgh, UK	Color: White
Other: Trimorphous w/ barytocalcite and paralstonite, spectrum differs from that of paralstonite only in the 700 cm-1 region and is similar to, but distinguishable from, that of barytocalcite, 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., Kaushansky, P., and S. Yariv. "The Interaction between Calcite Particles and Aqueous Solutions of Magnesium, Barium or Zinc Chlorides." Applied Geochemistry 1.5 (1986): 607-18., Rossman, G. R., and R. L. Squires. "The Occurence of Alstonite at Cave-in-Rock, Illinois." Mineralogical Record 5.6 (1974): 266-69., Scheetz, B. E., and W. B. White. "Vibrational Spectra of the Alkaline Earth Double Carbonates." American Mineralogist 62.12 (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	CAS registry no: 24189-28-4
Other analytical methods: EDS (Ba:Ca:Sr=1:1:0.2), SEM, XRD (7451F NHM std)