AM-2015-10006-A · Chalcopyritearchived
physical & structuralrev. 3
| designation | Chalcopyrite |
|---|---|
| chemical formula | CuFeS₂ |
| classification | Sulfide |
| crystal system | Tetragonal |
| mohs hardness | 3.5 – 4 |
| density (g/cm³) | 4.19 |
| colour | Brass yellow with iridescent tarnish |
| type locality | Kashio mine, Nagano, Japan |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 293, 324, 349
notessubmitter remarks + registry
Chalcopyrite of ordinary appearance and habit. Retained for completeness of the locality record.
chain of custody8 events · 6 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. |
|---|---|---|---|
| 2015-12-15 11:06 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | C.B. |
| 2015-12-20 13:28 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | P.S. |
| 2015-12-28 09:36 UTC | pass B | Raman acquisition; 3 peaks above prominence threshold instrument: Renishaw inVia (532 nm, low-power head) ref. checked: COD entry 114670 | P.S. |
| 2015-12-30 14:42 UTC | storage | re-bagged, label re-printed; placed in vault A, shelf 27, drawer 22 | C.B. |
| 2017-12-29 09:10 UTC | re-inspection | seal intact · label legible · no visible degradation | N.P. |
| 2019-12-29 10:51 UTC | re-inspection | seal intact · label legible · no visible degradation | N.P. |
| 2021-12-28 09:12 UTC | re-inspection | seal intact · label legible · no visible degradation | N.P. |
| 2023-12-28 12:25 UTC | re-inspection | seal intact · label legible · no visible degradation | N.P. |
physical location: vault A · shelf 27 · drawer 22 · last documented inspection: 2023-12-28 12:25 UTC