Interactive IRUG Spectrum

Section: 6

Minerals and pigments (MP)

Page: 445

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Details

IRUG filename: IMP00445	Data type: Infrared	IRUG material class: Minerals and pigments (MP)
Sample type: Reference material	Common name(s): Benstonite	Chemical/botanical name(s): Anhydrous normal carbonate (class), huntite (mineral group)
Sample source 1: Cave-in-Rock	Source location 1: Hardin County, Illinois (IL), US	Sample source 2: British Museum
Source location 2: Great Russell Street, London, WC1B-3DG, UK	Sample identifier 2: BM1968,628	Sample source 3: The Natural History Museum, National Museums of Scotland
Source location 3: Cromwell Road, London, SW7 5BD, UK, Edinburgh, UK	Color: Yellow, pale	Other: Spectrum displays a closer relationship to the aragonite, rather than the calcite group, see Farmer (1974) pp. 28-259 for discussion and comparison of alkaline earth double carbonates, compare alstonite and barytocalcite
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. "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	Linear formula: (Ba,Sr)6(Ca,Mn)6Mg(CO3)13
Other analytical methods: EDS (Ba:Sr:Ca:Mn:Mg=2.4:0.2:3.1:0:1 with trace Na & Pb), SEM, XRD (13487 NHM std)