AM-2013-10008-A · Pyriteactive
physical & structuralrev. 4
| designation | Pyrite |
|---|---|
| chemical formula | FeS₂ |
| classification | Sulfide / Pyrite group |
| crystal system | Cubic |
| mohs hardness | 6 – 6.5 |
| density (g/cm³) | 5.00 |
| colour | Brass yellow, fresh fracture |
| type locality | Red Cloud Mine, La Paz County, Arizona, USA |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 343, 380, 430
notessubmitter remarks + registry
Crystals up to 13 mm on edge, in random orientation. On dolomite matrix.
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. |
|---|---|---|---|
| 2013-10-20 15:05 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | C.B. |
| 2013-10-25 14:16 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | L.K. |
| 2013-11-01 09:07 UTC | pass B | Raman acquisition; 3 peaks above prominence threshold instrument: Horiba LabRAM HR (532 nm) ref. checked: ICDD card 04-2356 | L.K. |
| 2013-11-03 09:32 UTC | storage | re-bagged, label re-printed; placed in vault B, shelf 04, drawer 12 | C.B. |
| 2015-11-03 13:13 UTC | re-inspection | seal intact · label legible · no visible degradation | M.A. |
| 2017-11-02 15:55 UTC | re-inspection | seal intact · label legible · no visible degradation | M.A. |
| 2019-11-02 10:54 UTC | re-inspection | seal intact · label legible · no visible degradation | M.A. |
| 2021-11-01 13:28 UTC | re-inspection | seal intact · label legible · no visible degradation | M.A. |
physical location: vault B · shelf 04 · drawer 12 · last documented inspection: 2021-11-01 13:28 UTC