AM-2015-10007-A · Topazarchived
physical & structuralrev. 1
| designation | Topaz |
|---|---|
| chemical formula | Al₂SiO₄(F,OH)₂ |
| classification | Nesosilicate |
| crystal system | Orthorhombic |
| mohs hardness | 8 |
| density (g/cm³) | 3.56 |
| colour | Sherry-brown |
| type locality | Kongsberg, Buskerud, Norway |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 289, 402, 933
notessubmitter remarks + registry
Topaz of ordinary appearance and habit. Used as a calibration reference during the analytical pass.