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Section: 6 Minerals and pigments (MP) Page: 474

 Copyright © 1993-2024 Infrared and Raman Users Group (IRUG)


Details

IRUG filename:
IMP00474
Data type:
Infrared
IRUG material class:
Minerals and pigments (MP)
Sample type:
Reference material
Common name(s):
Scarbroite
Chemical/botanical name(s):
Hydrated carbonate with hydroxyl or hydrogen (class)
Source location 1:
Scarborough, Yorkshire, UK
Sample source 2:
British Museum
Source location 2:
Great Russell Street, London, WC1B-3DG, UK
Sample identifier 2:
BM984,898
Sample source 3:
The Natural History Museum, National Museums of Scotland
Source location 3:
Cromwell Road, London, SW7 5BD, UK, Edinburgh, UK
Color:
White, creamy
Other:
Specimen contains impurities due to exposure to sea water, the major one, halite, does not contribute to the spectrum which is close to that given in Dufflin (1960), but some relative peak intensities are different
Application:
Transmission FTIR spectroscopy
Mode:
Tran
Literature Reference:
Brindley, G. W. "Scarbroite, Al5(OH)13(CO3)*5H2O, Compared with Gibbsite and Hydrotalcite." Mineralogical Magazine 43 (1980): 615-18., Duffin, W. J., and J. Goodyear. Nature 180 (1957): 977. Duffin, W. J., and J. Goodyear. "A Thermal and X-ray Investigation of Scarborite." Mineralogical Magazine 32 (1960): 353-62. Jones, G. C., and B. Jackson. Infrared Transmission Spectra of Carbonate Minerals. London: Chapman & Hall, 1993.
Originating institution name:
Natural History Museum, National Museums of Scotland
Originating institution acronym:
NHM
Molecular formula:
C H23 Al5 O21
Linear formula:
Al5(OH)13(CO3)*5H2O
Other analytical methods:
EDS (Al with minor Cl, Na, Si, S and trace Ca, Mg), SEM, XRD (4208F NHM std=scarbroite + halite)