AM-2023-10011-A · Pyritearchived
physical & structuralrev. 1
| designation | Pyrite |
|---|---|
| chemical formula | FeS₂ |
| classification | Sulfide / Pyrite group |
| crystal system | Cubic |
| mohs hardness | 6 – 6.5 |
| density (g/cm³) | 5.02 |
| colour | Iridescent on weathered surface |
| type locality | Ouro Preto, Minas Gerais, Brazil |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 343, 380, 429
notessubmitter remarks + registry
Pyrite of ordinary appearance and habit. Retained for completeness of the locality record.
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. |
|---|---|---|---|
| 2023-02-26 12:51 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | C.B. |
| 2023-03-03 14:03 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | L.K. |
| 2023-03-17 13:45 UTC | pass B | Raman acquisition; 3 peaks above prominence threshold instrument: Horiba LabRAM HR (532 nm) ref. checked: COD entry 184441 | L.K. |
| 2023-03-20 13:15 UTC | storage | re-bagged, label re-printed; placed in vault B, shelf 21, drawer 03 | C.B. |
| 2025-03-19 09:06 UTC | re-inspection | seal intact · label legible · no visible degradation | S.W. |
physical location: vault B · shelf 21 · drawer 03 · last documented inspection: 2025-03-19 09:06 UTC
errata · corrections of record1 entry
The following corrections have been issued for this record since accession. Original values are retained here for citation purposes; the canonical metadata above reflects the most recent correction.
| id | issued | field | was | now |
|---|---|---|---|---|
| ERR-2008-0003 | 2008-09-07 | crystalSystem | trigonal | trigonal (R3̄c) |