AM-2020-10016-A · Cupritearchived
physical & structuralrev. 3
| designation | Cuprite |
|---|---|
| chemical formula | Cu₂O |
| classification | Oxide |
| crystal system | Cubic |
| mohs hardness | 3.5 – 4 |
| density (g/cm³) | 6.11 |
| colour | Deep dark red, submetallic |
| type locality | Touissit, Oriental, Morocco |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 146, 218, 410, 635
notessubmitter remarks + registry
Standard cuprite reference specimen. Supplied as a single piece on a small fragment of host matrix.
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. |
|---|---|---|---|
| 2020-08-22 10:48 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | T.J. |
| 2020-08-23 14:53 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | P.S. |
| 2020-08-31 16:16 UTC | pass B | Raman acquisition; 4 peaks above prominence threshold instrument: Renishaw inVia (532 nm, low-power head) ref. checked: ICDD card 04-1119 | P.S. |
| 2020-09-01 08:23 UTC | storage | re-bagged, label re-printed; placed in vault A, shelf 16, drawer 09 | T.J. |
| 2022-09-01 14:41 UTC | re-inspection | seal intact · label legible · no visible degradation | S.W. |
| 2024-08-31 12:33 UTC | re-inspection | seal intact · label legible · no visible degradation | S.W. |
physical location: vault A · shelf 16 · drawer 09 · last documented inspection: 2024-08-31 12:33 UTC