Interactive IRUG Spectrum

Details

IRUG filename:
IMP00228
Data type:
Infrared
IRUG material class:
Minerals and pigments (MP)
Sample type:
Reference material
Common name(s):
Anhydrite with minor gypsum impurity (from bassinite specimen)
Chemical/botanical name(s):
Anhydrous calcium sulfate with calcium sulfate dihydrate impurity
CAS name:
Anhydrite (Ca(SO4)​)
Sample source 1:
Twenty Mule Team Canyon; Death Valley National Monument
Source location 1:
Death Valley, CA, US
Sample identifier 1:
Inyo Co., California, 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:
124370
Sample source 3:
Philadelphia Museum of Art, Scientific Laboratory
Source location 3:
Box 7646, Philadelphia, PA, 19101, US
Color:
Off-white, translucent
Application:
MFTIR (Fourier transform infrared microspectroscopy)
Mode:
Tran
Originating institution name:
Philadelphia Museum of Art
Originating institution acronym:
PMA
Molecular formula:
Ca O4 S
Linear formula:
CaSO4
CAS registry no:
14798-04-0
Density
(g/cc):
2.97 (average)
Other analytical methods:
XRF