AM-2016-10008-A · Topazarchived
physical & structuralrev. 4
| designation | Topaz |
|---|---|
| chemical formula | Al₂SiO₄(F,OH)₂ |
| classification | Nesosilicate |
| crystal system | Orthorhombic |
| mohs hardness | 8 |
| density (g/cm³) | 3.58 |
| colour | Pale yellow |
| type locality | Mont Saint-Hilaire, Quebec, Canada |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 265, 288, 400
notessubmitter remarks + registry
Crystals up to 5 mm on edge, with euhedral faces. On quartz matrix.