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Interactive IRUG Spectrum

Section: 6 Minerals and pigments (MP) Page: 62

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Details

IRUG filename:
IMP00062
Data type:
Infrared
IRUG material class:
Minerals and pigments (MP)
Sample type:
Art object / artifact
Common name(s):
Atacamite, paratacamite mixture
Chemical/botanical name(s):
Copper chloride hydroxide, basic copper chloride
CAS name:
Atacamite (Cu2Cl(OH)​3), Paratacamite (Cu2Cl(OH)​3)
Sample source 1:
Nuzi nail head
Sample identifier 1:
Number 3
Sample source 2:
Freer Gallery of Art
Source location 2:
Washington, DC, US
Color:
Green
Other:
Trimorphous w/ paratacamite, botallackite
Application:
MFTIR (Fourier transform infrared microspectroscopy)
Mode:
Tran
Originating institution name:
Freer Gallery of Art, Smithsonian Institution
Originating institution acronym:
FGA
Molecular formula:
Cl Cu2 H3 O3 (for both)
Linear formula:
(Cu)2(OH)3Cl (for both)
CAS registry no:
1306-85-0 (Atacamite), 12186-00-4 (Paratacamite)
Other analytical methods:
XRF (x-ray fluorescence)