AM-2025-10002-A · Gypsumarchived
physical & structuralrev. 3
| designation | Gypsum |
|---|---|
| chemical formula | CaSO₄·2H₂O |
| classification | Sulfate |
| crystal system | Monoclinic |
| mohs hardness | 1.5 – 2 |
| density (g/cm³) | 2.32 |
| colour | Colourless, transparent |
| type locality | Broken Hill, NSW, Australia |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 413, 1009, 1137
notessubmitter remarks + registry
Gypsum of ordinary appearance and habit. Used as a calibration reference during the analytical pass.