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Interactive IRUG Spectrum

Section: 6 Minerals and pigments (MP) Page: 323

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Details

IRUG filename:
IMP00323
Data type:
Infrared
IRUG material class:
Minerals and pigments (MP)
Sample type:
Reference material
Common name(s):
Ultramarine, natural (?), Pigment Blue 29 (PB29), CI77007
Chemical/botanical name(s):
Sodium calcium aluminum silicate sulfate
Sample source 1:
C. Roberson Co.
Sample source 2:
Forbes Pigment Collection, Straus Conservation Center, Fogg Art Museum
Source location 2:
32 Quincy St, Cambridge, MA, 02138, US
Sample identifier 2:
Display 79
Color:
Blue
Application:
MFTIR (Fourier transform infrared microspectroscopy)
Mode:
Tran
Originating institution name:
Straus Center for Conservation, Harvard University Art Museums
Originating institution acronym:
HUAM
Linear formula:
(Na,Ca)7-8(Al,Si)12(O,S)24[(SO4),(Cl)2,(OH)2]
Other analytical methods:
Polarized Light Microscopy, December 1998