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Interactive IRUG Spectrum

Section: 6 Minerals and pigments (MP) Page: 507

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


Details

IRUG filename:
IMP00507
Data type:
Infrared
IRUG material class:
Minerals and pigments (MP)
Sample type:
Art object / artifact
Common name(s):
Talc and calcite w/ minor CH phase
Chemical/botanical name(s):
Magnesium silicate hydroxide, calcium carbonate
CAS name:
Talc (Mg3H2(SiO3)4), Calcite (Ca(CO3))
Sample source 1:
Seated Luohan
Source location 1:
Philadelphia Museum of Art
Sample identifier 1:
2013-74-1
Color:
Off-white, light, semi-opaque
Age:
Ming Dynasty
Application:
MFTIR (Fourier transform infrared microspectroscopy)
Mode:
Tran
Originating institution name:
Philadelphia Museum of Art
Originating institution acronym:
PMA
Linear formula:
Mg3Si4O10(OH)2; CaCO3
CAS registry no:
14807-96-6 (talc) and 13397-26-7 (calcite)
Other analytical methods:
SEM (scanning electron microscopy), EDS (energy dispersive spectroscopy)