AM-2013-10009-A · Cupritearchived
physical & structuralrev. 1
| designation | Cuprite |
|---|---|
| chemical formula | Cu₂O |
| classification | Oxide |
| crystal system | Cubic |
| mohs hardness | 3.5 – 4 |
| density (g/cm³) | 6.11 |
| colour | Dark red, submetallic |
| type locality | Panasqueira, Castelo Branco, Portugal |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 218, 411, 633
notessubmitter remarks + registry
Macroscopic appearance consistent with cuprite; no surface alteration observed at the time of intake.
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. |
|---|---|---|---|
| 2013-03-19 09:23 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | L.K. |
| 2013-03-24 09:06 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | S.W. |
| 2013-03-30 12:40 UTC | pass B | Raman acquisition; 3 peaks above prominence threshold instrument: Horiba LabRAM HR (532 nm) ref. checked: AMCSD #6452 | S.W. |
| 2013-04-02 12:28 UTC | storage | re-bagged, label re-printed; placed in vault C, shelf 13, drawer 22 | L.K. |
| 2015-04-02 11:08 UTC | re-inspection | seal intact · label legible · no visible degradation | N.P. |
| 2017-04-01 11:23 UTC | re-inspection | seal intact · label legible · no visible degradation | N.P. |
| 2019-04-01 13:16 UTC | re-inspection | seal intact · label legible · no visible degradation | N.P. |
| 2021-03-31 15:44 UTC | re-inspection | seal intact · label legible · no visible degradation | N.P. |
physical location: vault C · shelf 13 · drawer 22 · last documented inspection: 2021-03-31 15:44 UTC