AM-2019-10020-A · Pyritearchived
physical & structuralrev. 4
| designation | Pyrite |
|---|---|
| chemical formula | FeS₂ |
| classification | Sulfide / Pyrite group |
| crystal system | Cubic |
| mohs hardness | 6 – 6.5 |
| density (g/cm³) | 5.06 |
| colour | Iridescent on weathered surface |
| type locality | Bahia, Brazil |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 343, 379, 430
notessubmitter remarks + registry
Donated as part of a university overflow consignment; no individual provenance retained.
chain of custody7 events · 4 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. |
|---|---|---|---|
| 2019-02-04 12:32 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | N.P. |
| 2019-02-08 15:32 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | H.D. |
| 2019-02-15 14:08 UTC | pass B | Raman acquisition; 3 peaks above prominence threshold instrument: Renishaw inVia (532 nm, low-power head) ref. checked: COD entry 133707 | H.D. |
| 2019-02-17 14:04 UTC | storage | re-bagged, label re-printed; placed in vault A, shelf 22, drawer 22 | N.P. |
| 2021-02-16 08:53 UTC | re-inspection | seal intact · label legible · no visible degradation | R.E. |
| 2023-02-16 08:06 UTC | re-inspection | seal intact · label legible · no visible degradation | R.E. |
| 2025-02-15 13:17 UTC | re-inspection | seal intact · label legible · no visible degradation | R.E. |
physical location: vault A · shelf 22 · drawer 22 · last documented inspection: 2025-02-15 13:17 UTC