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Interactive IRUG Spectrum
| Section: 6 | Minerals and pigments (MP) | Page: 238 |
Copyright © 1993-2024 Infrared and Raman Users Group (IRUG)
Details
IRUG filename: RMP00238 | Data type: Raman | IRUG material class: Minerals and pigments (MP) |
Sample type: Reference material | Common name(s): Ultramarine, genuine (natural), Pigment Blue 29 (PB29), CI77007 | Chemical/botanical name(s): Sodium calcium aluminum silicate sulfate |
CAS name: Lazurite | Sample source 1: Roberson | Source location 1: London |
Sample identifier 1: Genuine Ultramarine, No. 67 | 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: 8.02.19 | Sample source 3: Forbes Pigment Collection, Winterthur Museum | Source location 3: 5105 Kennett Pike, Winterthur, DE 19735, US |
Color: Blue | Age: 1933, dated | Application: Raman microscopy/microspectroscopy |
Excitation source (nm): 514 | Mode: Scat | Originating institution name: Winterthur Museum, Garden & Library |
Originating institution acronym: WM | Linear formula: (Na,Ca)7-8(Al,Si)12(O,S)24[(SO4),Cl2,(OH)2] (ideal) | CAS registry no: 1302-83-6 |