AM-2021-10008-A · Cupritearchived
physical & structuralrev. 3
| designation | Cuprite |
|---|---|
| chemical formula | Cu₂O |
| classification | Oxide |
| crystal system | Cubic |
| mohs hardness | 3.5 – 4 |
| density (g/cm³) | 6.10 |
| colour | Slightly tarnished, dark red, submetallic |
| type locality | Outokumpu, North Karelia, Finland |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 147, 220, 411, 634
notessubmitter remarks + registry
Specimen accompanied by a single typewritten card listing the locality and the year of collection. No analytical data was supplied.
chain of custody6 events · 3 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. |
|---|---|---|---|
| 2021-01-18 11:24 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | T.J. |
| 2021-01-21 10:21 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | R.E. |
| 2021-01-26 08:17 UTC | pass B | Raman acquisition; 4 peaks above prominence threshold instrument: Renishaw inVia (532 nm, low-power head) ref. checked: AMCSD #1686 | R.E. |
| 2021-01-28 08:37 UTC | storage | re-bagged, label re-printed; placed in vault C, shelf 07, drawer 31 | T.J. |
| 2023-01-28 14:07 UTC | re-inspection | seal intact · label legible · no visible degradation | S.W. |
| 2025-01-27 15:49 UTC | re-inspection | seal intact · label legible · no visible degradation | S.W. |
physical location: vault C · shelf 07 · drawer 31 · last documented inspection: 2025-01-27 15:49 UTC