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Interactive IRUG Spectrum

Section: 6 Minerals and pigments (MP) Page: 412

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


Details

IRUG filename:
IMP00412
Data type:
Infrared
IRUG material class:
Minerals and pigments (MP)
Sample type:
Reference material
Common name(s):
Kolwezite
Chemical/botanical name(s):
Anhydrous carbonate with hydroxyl or halogen (class), malachite (mineral group)
Source location 1:
Kolwezi, Shaba, Zaire
Sample source 2:
British Museum
Source location 2:
Great Russell Street, London, WC1B-3DG, UK
Sample identifier 2:
BM1985,311
Sample source 3:
The Natural History Museum, National Museums of Scotland
Source location 3:
Cromwell Road, London, SW7 5BD, UK, Edinburgh, UK
Color:
Brown, pale
Other:
Spectrum is very similar to those of rosasite, glaukosphaerite and mcguinnessite, but is distinguishable from that of rosasite in the 3400 and 700 cm-1 regions, also compare malachite, matches partial spectrum given in Deliens
Application:
Transmission FTIR spectroscopy
Mode:
Tran
Literature Reference:
Jones, G. C., and B. Jackson. Infrared Transmission Spectra of Carbonate Minerals. London: Chapman & Hall, 1993. Deliens, M., and P. Piret. "Kolwezite, Cu Co Hydroxycarbonate, Analogue of Glaukosphaerite and Rosasite." Bulletin De La Societe Francaise De Mineralogie Et De Christallographie 103.2 (1980): 179-84.
Originating institution name:
Natural History Museum, National Museums of Scotland
Originating institution acronym:
NHM
Linear formula:
(Cu,Co)2(CO3)(OH)2
Other analytical methods:
EDS (Cu:Co:Mg=1:0.6:0.1 with trace Mn, Fe, Zn, S), SEM, XRD (6562F NHM std)