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Interactive IRUG Spectrum

Section: 6 Minerals and pigments (MP) Page: 197

 Copyright © 1993-2024 Infrared and Raman Users Group (IRUG)


Details

IRUG filename:
IMP00197
Data type:
Infrared
IRUG material class:
Minerals and pigments (MP)
Sample type:
Reference material
Common name(s):
Anorthite w/ minor CH stretches
Chemical/botanical name(s):
Calcium aluminum silicate, plagioclase feldspar, feldspar group, silicate class
CAS name:
Anorthite ((Ca0.9-1Na0-0.1)(Si2-2.1Al1.9-2)O8)
Source location 1:
Sitkin Island, Aleutian Islands, Alaska, US
Sample source 2:
Smithsonian Institution, National Museum of Natural History, Department of Mineral Sciences (NMNH)
Source location 2:
Washington, DC, 20560, US
Sample identifier 2:
137041
Sample source 3:
Philadelphia Museum of Art, Scientific Laboratory
Source location 3:
Box 7646, Philadelphia, PA, 19101, US
Application:
MFTIR (Fourier transform infrared microspectroscopy)
Mode:
Tran
Originating institution name:
Philadelphia Museum of Art
Originating institution acronym:
PMA
Linear formula:
CaAl2Si2O8 (ideal)
CAS registry no:
1302-54-1
Other analytical methods:
XRF