AM-2018-10009-A · Cupriteunverified
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. 1
| designation | Cuprite |
|---|---|
| chemical formula | Cu₂O |
| classification | Oxide |
| crystal system | Cubic |
| mohs hardness | 3.5 – 4 |
| density (g/cm³) | 6.14 |
| colour | Brick red |
| type locality | Dalnegorsk, Primorsky Krai, Russia |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 146, 217, 411, 633
notessubmitter remarks + registry
Submitter cited the type locality. Specimen retained for reference; no chain-of-custody documentation available beyond the submission packet.
chain of custody7 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. |
|---|---|---|---|
| 2018-11-03 14:37 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | P.S. |
| 2018-11-07 16:48 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | L.K. |
| 2018-11-19 12:02 UTC | pass B | Raman acquisition; 4 peaks above prominence threshold instrument: Renishaw inVia (532 nm, low-power head) ref. checked: AMCSD #7079 | L.K. |
| 2018-11-21 14:34 UTC | storage | re-bagged, label re-printed; placed in vault C, shelf 28, drawer 25 | P.S. |
| 2020-11-20 12:29 UTC | re-inspection | seal intact · label legible · no visible degradation | H.D. |
| 2022-11-20 13:17 UTC | re-inspection | seal intact · label legible · no visible degradation | H.D. |
| 2024-11-19 09:16 UTC | re-inspection | seal intact · label legible · no visible degradation | H.D. |
physical location: vault C · shelf 28 · drawer 25 · last documented inspection: 2024-11-19 09:16 UTC