Interactive IRUG Spectrum

Details

IRUG filename:
RMP00225
Data type:
Raman
IRUG material class:
Minerals and pigments (MP)
Sample type:
Reference material
Common name(s):
Bassanite from Forbes Collection sample labeled: 'Gypsum, from Alabaster (terra alba)'
Chemical/botanical name(s):
Calcium sulfate hemihydrate
CAS name:
Bassanite (Ca(SO4)​.1​/2H2O)
Sample source 1:
Munich
Sample source 2:
Forbes Pigment Collection, Fogg Art Museum (Harvard Art Museums)
Source location 2:
32 Quincy St, Cambridge, MA 02138, US
Sample identifier 2:
1.01.01, Gypsum from Alabaster (terre alba)
Sample source 3:
Forbes Pigment Collection, Winterthur Museum
Source location 3:
5105 Kennett Pike, Winterthur, DE 19735, US
Color:
White
Age:
1914, dated
Application:
Raman microscopy/microspectroscopy
Excitation source (nm):
785
Mode:
Scat
Originating institution name:
Winterthur Museum, Garden & Library
Originating institution acronym:
WM
Linear formula:
CaSO4*0.5H2O
CAS registry no:
17033-35-1