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Interactive IRUG Spectrum

Section: 6 Minerals and pigments (MP) Page: 566

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Details

IRUG filename:
IMP00566
Data type:
Infrared
IRUG material class:
Minerals and pigments (MP)
Sample type:
Reference material
Common name(s):
Cornwallite, some phosphate substitution, phosphatian cornwallite
Chemical/botanical name(s):
Copper arsenate hydroxide
Sample source 1:
Copper Stope, Majuba Hill Mine
Source location 1:
Pershing County, Nevada, US
Sample source 2:
Excalibur Mineral Company
Source location 2:
1885 Seminole Trail, Charlottesville, VA, US
Color:
Green
Other:
EDS (qualitative): Cu, As, low P
Application:
MFTIR (Fourier transform infrared microspectroscopy)
Mode:
Tran
Originating institution name:
Philadelphia Museum of Art
Originating institution acronym:
PMA
Linear formula:
Cu5(AsO4)2(OH)4 (ideal)
Other analytical methods:
EDS (energy dispersive spectroscopy), SEM (scanning electron microscopy), Raman spectroscopy