| Section: 6 | Minerals and pigments (MP) | Page: 227 | 
IRUG filename: RMP00227  | Data type: Raman  | IRUG material class: Minerals and pigments (MP)  | 
Sample type: Reference material  | Common name(s): Ultramarine blue, Pigment Blue 29 (PB29), CI77007  | Chemical/botanical name(s): Sodium calcium aluminum silicate sulfate, sodium polysulfide aluminosilicate sodalite-type  | 
CAS name: C.I. Pigment Blue 29  | Sample source 1: Forbes Pigment Collection, Fogg Art Museum (Harvard Art Museums)  | Source location 1: 32 Quincy Street, Cambridge, MA 02138, US  | 
Sample identifier 1: 8.02.11  | Sample source 2: Forbes Pigment Collection, Winterthur Museum  | Source location 2: 5105 Kennett Pike, Winterthur, DE 19735, US  | 
Sample identifier 2: 8.02.11  | Color: Blue  | Application: Raman microscopy/microspectroscopy  | 
Excitation source (nm): 514  | Mode: Scat  | Originating institution name: Winterthur Museum, Garden & Library  | 
Originating institution acronym: WM  | Linear formula: 3Na2O*3Al2O3*6SiO2*2Na2S, approximately  | CAS registry no: 57455-37-5  |