AM-2017-10001-B · Magnetite, 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. 6
| designation | Magnetite, anomaly under review |
|---|---|
| chemical formula | Fe₃O₄ |
| classification | Oxide / Spinel group |
| crystal system | Cubic |
| mohs hardness | 5.5 – 6.5 |
| density (g/cm³) | 5.19 |
| colour | Steel grey, octahedral habit |
| type locality | Kongsberg, Buskerud, Norway |
raman spectroscopy532 nm · pass B
reported peaks (cm⁻¹): 304, 540, 667
notessubmitter remarks + registry
Magnetic moment measured at room temperature is approximately 14% above the theoretical maximum for stoichiometric magnetite of the cited mass. Moment retains its magnitude through demagnetisation cycling to 600 K. No mechanism has been advanced.