AM-2025-10008-A · Magnetitearchived
physical & structuralrev. 4
| designation | Magnetite |
|---|---|
| chemical formula | Fe₃O₄ |
| classification | Oxide / Spinel group |
| crystal system | Cubic |
| mohs hardness | 5.5 – 6.5 |
| density (g/cm³) | 5.16 |
| colour | Black, metallic to submetallic |
| type locality | Kovdor massif, Murmansk, Russia |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 303, 539, 666
notessubmitter remarks + registry
Standard magnetite reference specimen. Supplied as a single piece on a small fragment of host matrix.