AM-2024-10001-A · Gypsumarchived
physical & structuralrev. 3
| designation | Gypsum |
|---|---|
| chemical formula | CaSO₄·2H₂O |
| classification | Sulfate |
| crystal system | Monoclinic |
| mohs hardness | 1.5 – 2 |
| density (g/cm³) | 2.35 |
| colour | Milky white |
| type locality | Inder, Atyrau, Kazakhstan |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 416, 491, 620, 670, 1006, 1138
notessubmitter remarks + registry
Specimen accompanied by a single typewritten card listing the locality and the year of collection. No further provenance information.