AM-2016-10001-B · Pyrite, anomaly under reviewunverified
withdrawal on file: metadata insufficient for re-verification after the 2014 reorganisation (recorded 2019-02-21; classification withdrawn).
The classification below is preliminary. Spectroscopic confirmation is incomplete; values shown reflect the most recent analytical pass and may be revised without notice.
physical & structuralrev. 3
| designation | Pyrite, anomaly under review |
|---|---|
| chemical formula | FeS₂ |
| classification | Sulfide / Pyrite group |
| crystal system | Cubic |
| mohs hardness | 6 – 6.5 |
| density (g/cm³) | 5.03 |
| colour | Brass yellow, fresh fracture |
| type locality | Outokumpu, North Karelia, Finland |
raman spectroscopy532 nm · pass B
reported peaks (cm⁻¹): 344, 381, 431
notessubmitter remarks + registry
Resistivity at 280 K is one decade lower than the published bulk value for stoichiometric pyrite. The discrepancy persists after 600 K thermal anneal. EDX confirms stoichiometric Fe:S ratio within instrument precision.
chain of custody8 events · 5 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. |
|---|---|---|---|
| 2016-10-23 14:57 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | P.S. |
| 2016-10-25 14:24 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | P.S. |
| 2016-10-28 11:52 UTC | pass B | Raman acquisition; 3 peaks above prominence threshold instrument: Renishaw inVia (532 nm, low-power head) ref. checked: ICDD card 04-8878 | P.S. |
| 2016-10-30 08:03 UTC | storage | re-bagged, label re-printed; placed in vault B, shelf 12, drawer 26 | P.S. |
| 2018-10-30 16:47 UTC | re-inspection | seal intact · label legible · no visible degradation | T.J. |
| 2020-10-29 16:27 UTC | re-inspection | seal intact · label legible · no visible degradation | T.J. |
| 2022-10-29 13:53 UTC | re-inspection | seal intact · label legible · no visible degradation | T.J. |
| 2024-10-28 15:13 UTC | re-inspection | seal intact · label legible · no visible degradation | T.J. |
physical location: vault B · shelf 12 · drawer 26 · last documented inspection: 2024-10-28 15:13 UTC