AM-2022-10006-A · Sphaleritearchived
physical & structuralrev. 4
| designation | Sphalerite |
|---|---|
| chemical formula | (Zn,Fe)S |
| classification | Sulfide / Sphalerite group |
| crystal system | Cubic |
| mohs hardness | 3.5 – 4 |
| density (g/cm³) | 4.04 |
| colour | Slightly tarnished, black, opaque |
| type locality | Mibladen, Khénifra, Morocco |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 274, 346, 620, 662
notessubmitter remarks + registry
Submitter cited the type locality. Specimen retained for reference; no chain-of-custody documentation available beyond the submission packet.
chain of custody5 events · 2 seal-breaks
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. |
|---|---|---|---|
| 2022-10-26 14:26 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | P.S. |
| 2022-10-29 16:59 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | L.K. |
| 2022-11-09 10:22 UTC | pass B | Raman acquisition; 4 peaks above prominence threshold instrument: Renishaw inVia (785 nm) ref. checked: RRUFF R05007 | L.K. |
| 2022-11-11 08:13 UTC | storage | re-bagged, label re-printed; placed in vault C, shelf 11, drawer 10 | P.S. |
| 2024-11-10 08:20 UTC | re-inspection | seal intact · label legible · no visible degradation | P.S. |
physical location: vault C · shelf 11 · drawer 10 · last documented inspection: 2024-11-10 08:20 UTC