Section: 6 | Minerals and pigments (MP) | Page: 105 |
IRUG filename: IMP00105 | Data type: Infrared | IRUG material class: Minerals and pigments (MP) |
Sample type: Reference material | Common name(s): Gypsum | Chemical/botanical name(s): Calcium sulfate dihydrate |
CAS name: Gypsum (Ca(SO4).2H2O) | Source location 1: Fort Washington, Prince George's Co., Maryland (MD), US | 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: 117907 | Sample source 3: Philadelphia Museum of Art, Scientific Laboratory |
Source location 3: Box 7646, Philadelphia, PA, 19101, US | Color: Colorless to white, translucent | Application: MFTIR (Fourier transform infrared microspectroscopy) |
Mode: Tran | Originating institution name: Philadelphia Museum of Art | Originating institution acronym: PMA |
Linear formula: CaSO4*2H2O | CAS registry no: 13397-24-5 | Other analytical methods: XRF (x-ray fluorescence) |