Interactive IRUG Spectrum


IRUG filename:
Data type:
IRUG material class:
Minerals and pigments (MP)
Sample type:
Reference material
Common name(s):
Chemical/botanical name(s):
Anhydrous carbonate with hydroxyl or halogen (class), malachite (mineral group)
CAS name:
Rosasite ((Cu0.5-​1Zn0-​0.5)​2(CO3)​(OH)​2)
Source location 1:
Tsumeb, Namibia
Sample source 2:
British Museum
Source location 2:
Great Russell Street, London, WC1B-3DG, UK
Sample identifier 2:
Sample source 3:
The Natural History Museum, National Museums of Scotland
Source location 3:
Cromwell Road, London, SW7 5BD, UK, Edinburgh, UK
Green, dark
Spectrum is very similar to those of other members of the rosasite group i.e. glaukosphaerite, kolowezite and mcguinessite, except in the 700 cm-1 region, spectrum is easily distinguished from that of the chemically related aurichalcite
Transmission FTIR spectroscopy
Literature Reference:
Jones, G. C., and B. Jackson. Infrared Transmission Spectra of Carbonate Minerals. London: Chapman & Hall, 1993.Braithwaite, R. S., and G. Ryback. "Rosasite, Aurichalcite, and Associated Minerals from Heights of Abraham, Matlock Bath, Derbyshire, with a Note on Infra-red Spectra." Mineralogical Magazine 33 (1963): 441-49. Nickel, E. H., and L. G. Berry. "The New Mineral Nullaginite and Additional Data on the Related Minerals Rosasite and Glaukosphaerite." Canadian Mineralogist 19.2 (1981): 315-24. Schmetzer, K., and G. Tremmel. "McGuinnessit (Mg, CU)2Co3(OH)2 Aus Bou Azzer, Marokko: Ein Neuer Fundpunkt (McGuinnessite from Bou Azzer, Morocco: A New Discovery)." Neues Jahrbuch Fur Mineralogie, Monatshefte (1981): 443-51.
Originating institution name:
Natural History Museum, National Museums of Scotland
Originating institution acronym:
Linear formula:
CAS registry no:
Other analytical methods:
EDS (Cu:Zn=approx. 1.6:1 with trace Mg & Si), SEM, XRD (16163 NHM std=rosasite)