AM-2012-10001-B · Hematite, anomaly under reviewunverified
The classification below is preliminary. Spectroscopic confirmation is incomplete; values shown reflect the most recent analytical pass and may be revised without notice.
physical & structuralrev. 2
| designation | Hematite, anomaly under review |
|---|---|
| chemical formula | Fe₂O₃ |
| classification | Oxide / Hematite group |
| crystal system | Trigonal |
| mohs hardness | 5 – 6 |
| density (g/cm³) | 5.23 |
| colour | Tabular, specular |
| type locality | Ratnapura, Sabaragamuwa, Sri Lanka |
raman spectroscopy532 nm · pass B
reported peaks (cm⁻¹): 223, 293, 410, 612, 1319
notessubmitter remarks + registry
Polarised micro-Raman maps over a 200 µm × 200 µm area show that the 612 cm⁻¹ feature varies in intensity in a coherent spatial pattern with an apparent characteristic length of approximately 22 µm. The pattern reproduces on rotation of the specimen. No textural correlate is visible by SEM. The 612 cm⁻¹ wavenumber matches the unattributed band reported elsewhere in the registry.