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Section: 6 Minerals and pigments (MP) Page: 356

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


Details

IRUG filename:
IMP00356
Data type:
Infrared
IRUG material class:
Minerals and pigments (MP)
Sample type:
Reference material
Common name(s):
Coalingite
Chemical/botanical name(s):
Hydrated carbonate with hydroxyl or halogen (class), sjogrenite (mineral group)
CAS name:
Coalingite (Fe2Mg10(CO3)(OH)24.2H2O)
Sample source 1:
Near Dallas Gem Mine
Source location 1:
San Benito County, California, US
Sample source 2:
British Museum
Source location 2:
Great Russell Street, London, WC1B-3DG, UK
Sample identifier 2:
BM1977,102
Sample source 3:
The Natural History Museum, National Museums of Scotland
Source location 3:
Cromwell Road, London, SW7 5BD, UK, Edinburgh, UK
Color:
Bronze
Other:
X-ray powder diffraction pattern of this sample displayed some differences c.f. PDF 26-1217 possibly due to preferred orientation in the PDF sample, spectrum differs from that shown in the original description (Mumpton)
Application:
Transmission FTIR spectroscopy
Mode:
Tran
Literature Reference:
Jones, G. C., and B. Jackson. Infrared Transmission Spectra of Carbonate Minerals. London: Chapman & Hall, 1993., Delvanaz, H., and R. Allmann. "Fe-brucite, Coalingite and Pyroaurite in the System MgO-Fe-O2-H2O(CO2)." Proceedings and Posters: 66th Annual Meeting of the German Mineralogical Society, Fortschritte Der Mineralogie, Beiheft 66.1 (1988): 23., Mumpton, F. A., H. W. Jaffe, and C. S. Thompson. "Coalingite, a New Minderal from the New Idria Serpentine, Fresno and San Benito Counties, California." American Mineralogist 50.11, 12 (1965): 1893-913., Pastor, R. J., and H. F. W. Taylor. "Crystal Structure of Coalingite." Mineralogical Magazine 38.295 (1971): 286-94.
Originating institution name:
Natural History Museum, National Museums of Scotland
Originating institution acronym:
NHM
Linear formula:
Fe2Mg10(CO3)(OH)24*2H2O
CAS registry no:
12179-78-1
Other analytical methods:
EDS (Mg:Fe:Mn=9:2:0.3), SEM, XRD (7962F NHM std=coalingite)