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Section: 6 Minerals and pigments (MP) Page: 293

 Copyright © 1993-2025 Infrared and Raman Users Group (IRUG)


Details

IRUG filename:
IMP00293
Data type:
Infrared
IRUG material class:
Minerals and pigments (MP)
Sample type:
Art object / artifact
Common name(s):
Atacamite, from bronze, minor contaminant at 1104 cm-1
Chemical/botanical name(s):
Copper chloride hydroxide, basic copper chloride
CAS name:
Atacamite (Cu2Cl(OH)3)
Sample source 1:
Straus Center for Conservation, Fogg Art Museum
Source location 1:
32 Quincy Street, Cambridge, MA 02138, US
Color:
Green
Other:
Trimorphous with paratacamite & botallackite
Application:
MFTIR (Fourier transform infrared microspectroscopy)
Mode:
Tran
Originating institution name:
Straus Center for Conservation, Harvard University Art Museums
Originating institution acronym:
HUAM
Molecular formula:
Cl Cu2 H3 O3
Linear formula:
(Cu2)2(OH)3Cl
CAS registry no:
1306-85-0
Other analytical methods:
XRD (x-ray diffraction)