AM-2012-10017-A · Cupritearchived
physical & structuralrev. 2
| designation | Cuprite |
|---|---|
| chemical formula | Cu₂O |
| classification | Oxide |
| crystal system | Cubic |
| mohs hardness | 3.5 – 4 |
| density (g/cm³) | 6.13 |
| colour | Brick red |
| type locality | Kashio mine, Nagano, Japan |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 147, 413, 634
notessubmitter remarks + registry
Photographic record retained. Specimen temperature held at lab ambient throughout 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. |
|---|---|---|---|
| 2012-07-17 08:27 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | T.J. |
| 2012-07-19 10:07 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | M.A. |
| 2012-07-24 09:33 UTC | pass B | Raman acquisition; 3 peaks above prominence threshold instrument: Horiba LabRAM HR (532 nm) ref. checked: RRUFF R05008 | M.A. |
| 2012-07-25 11:41 UTC | storage | re-bagged, label re-printed; placed in vault D, shelf 23, drawer 35 | T.J. |
| 2014-07-25 09:03 UTC | re-inspection | seal intact · label legible · no visible degradation | N.P. |
| 2016-07-24 13:41 UTC | re-inspection | seal intact · label legible · no visible degradation | N.P. |
| 2018-07-24 16:38 UTC | re-inspection | seal intact · label legible · no visible degradation | N.P. |
| 2020-07-23 09:34 UTC | re-inspection | seal intact · label legible · no visible degradation | N.P. |
physical location: vault D · shelf 23 · drawer 35 · last documented inspection: 2020-07-23 09:34 UTC