AM-2018-10001-A · Goethitearchived
physical & structuralrev. 1
| designation | Goethite |
|---|---|
| chemical formula | FeO(OH) |
| classification | Oxide-hydroxide |
| crystal system | Orthorhombic |
| mohs hardness | 5 – 5.5 |
| density (g/cm³) | 4.32 |
| colour | Botryoidal black-brown |
| type locality | Ratnapura, Sabaragamuwa, Sri Lanka |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 248, 386, 477, 548, 684
notessubmitter remarks + registry
Standard goethite reference specimen. Supplied as a single piece on a small fragment of host matrix.