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Interactive IRUG Spectrum

Section: 6 Minerals and pigments (MP) Page: 286

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


Details

IRUG filename:
IMP00286
Data type:
Infrared
IRUG material class:
Minerals and pigments (MP)
Sample type:
Reference material
Common name(s):
Alstonite, bromlite
Chemical/botanical name(s):
Barium calcium carbonate, aragonite group, carbonate class
CAS name:
Alstonite (BaCa(CO3)2)
Source location 1:
Northumberland, England, UK
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:
78840 03
Sample source 3:
Philadelphia Museum of Art, Scientific Laboratory
Source location 3:
Box 7646, Philadelphia, PA, 19101, US
Color:
White, translucent
Application:
MFTIR (Fourier transform infrared microspectroscopy)
Mode:
Tran
Originating institution name:
Philadelphia Museum of Art
Originating institution acronym:
PMA
Molecular formula:
C2 Ba Ca O6
Linear formula:
BaCa(CO3)2 (ideal)
CAS registry no:
24189-28-4
Other analytical methods:
Trimorphous with barytocalcite and paralstonite