AM-2014-10017-A · Cassiteritearchived
physical & structuralrev. 1
| designation | Cassiterite |
|---|---|
| chemical formula | SnO₂ |
| classification | Oxide / Rutile group |
| crystal system | Tetragonal |
| mohs hardness | 6 – 7 |
| density (g/cm³) | 7.05 |
| colour | Weakly zoned, brown to black, adamantine |
| type locality | South Crofty mine, Cornwall, England |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 476, 634, 774
notessubmitter remarks + registry
Crystals up to 24 mm on edge, sharply terminated. Specimen mounted on a fragment of host rock.