Interactive IRUG Spectrum

Section: 6

Minerals and pigments (MP)

Page: 377

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Details

IRUG filename: IMP00377	Data type: Infrared	IRUG material class: Minerals and pigments (MP)
Sample type: Reference material	Common name(s): Lanthanite-(La)	Chemical/botanical name(s): Hydrated normal carbonate (class), lanthanite (mineral group)
Sample source 1: Vina de Uba	Source location 1: Minas Gerais, Brazil	Sample source 2: British Museum
Source location 2: Great Russell Street, London, WC1B-3DG, UK	Sample identifier 2: BM1975,192	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: The x-ray powder photograph matches PDF30-678 lanthanite (also La =approx. Nd), spectrum matches Suhner (5-59A) lanthanite, but has an extra peak at 1036 cm-1 possibly due to impurity
Application: Transmission FTIR spectroscopy	Mode: Tran	Literature Reference: Jones, G. C., and B. Jackson. Infrared Transmission Spectra of Carbonate Minerals. London: Chapman & Hall, 1993., Atencio, D., R. E. Bevins, M. Fleischer, C. T. Williams, and P. A. Williams. "Revision of the Lanthanite Group and New Data for Specimens from Bastnas, Sweden, and Bethlehem U.S.A." Mineralogical Magazine 53.5 (1989): 639-42., Dal Negro, A., G. Rossi, and V. Tazzoli. "The Crystal Structure of Lanthanite." American Mineralogist 62.1, 2 (1977): 142-46.
Originating institution name: Natural History Museum, National Museums of Scotland	Originating institution acronym: NHM	Linear formula: (La,Ce)2(CO3)3*8H2O
Other analytical methods: EDS (La:Nd:Ce=approx. 1:10 (La slightly>Nd), SEM, XRD (8234F NHM std=lanthanite)