AM-2008-08443-A · Quartz, var. amethystarchived
physical & structuralrev. 1
| designation | Quartz, var. amethyst |
|---|---|
| chemical formula | SiO₂ |
| classification | Tectosilicate / Quartz group |
| crystal system | Trigonal |
| mohs hardness | 7 |
| density (g/cm³) | 2.65 |
| colour | Pale violet, weakly zoned |
| type locality | Boudi, Souss-Massa, Morocco |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 128, 207, 464
notessubmitter remarks + registry
Standard amethyst spectrum. Specimen accompanied by a single typewritten card; no further provenance.