AM-2026-00014-A · Aegirinearchived
physical & structuralrev. 1
| designation | Aegirine |
|---|---|
| chemical formula | NaFe³⁺Si₂O₆ |
| classification | Inosilicate / Pyroxene group |
| crystal system | Monoclinic |
| mohs hardness | 5.5 – 6 |
| density (g/cm³) | 3.55 |
| colour | Dark green to black |
| type locality | Hotazel, Kalahari Manganese Field, South Africa |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 323, 671, 997
notessubmitter remarks + registry
Prismatic crystals of dark green to black colouration with vitreous lustre on prism faces. Submitted as part of a small consignment of Kalahari Manganese Field material; locality recorded to mine area only.
chain of custody4 events · 1 seal-break
Events recorded against this accession in the registry's printed custody book. Operator initials are anonymous. Storage codes follow the convention vault-shelf-drawer.
| timestamp | stage | detail | op. |
|---|---|---|---|
| 2026-08-03 08:42 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | M.A. |
| 2026-08-06 09:15 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | L.K. |
| 2026-08-18 08:52 UTC | pass B | Raman acquisition; 3 peaks above prominence threshold instrument: Renishaw inVia (532 nm, low-power head) ref. checked: RRUFF R05004 | L.K. |
| 2026-08-19 15:50 UTC | storage | re-bagged, label re-printed; placed in vault A, shelf 08, drawer 16 | M.A. |
physical location: vault A · shelf 08 · drawer 16 · last documented inspection: 2026-08-19 15:50 UTC