AM-2010-10006-A · Cupritearchived
physical & structuralrev. 2
| designation | Cuprite |
|---|---|
| chemical formula | Cu₂O |
| classification | Oxide |
| crystal system | Cubic |
| mohs hardness | 3.5 – 4 |
| density (g/cm³) | 6.14 |
| colour | Dark red, submetallic |
| type locality | Shimen, Hunan, China |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 150, 218, 410, 634
notessubmitter remarks + registry
Crystals up to 21 mm on edge, in random orientation. Specimen mounted on a fragment of host rock.
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. |
|---|---|---|---|
| 2010-11-20 14:08 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | H.D. |
| 2010-11-24 08:07 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | C.B. |
| 2010-11-27 15:13 UTC | pass B | Raman acquisition; 4 peaks above prominence threshold instrument: Horiba LabRAM HR (532 nm) ref. checked: RRUFF R05001 | C.B. |
| 2010-11-30 11:56 UTC | storage | re-bagged, label re-printed; placed in vault B, shelf 17, drawer 27 | H.D. |
| 2012-11-29 15:52 UTC | re-inspection | seal intact · label legible · no visible degradation | V.O. |
| 2014-11-29 11:40 UTC | re-inspection | seal intact · label legible · no visible degradation | V.O. |
| 2016-11-28 12:29 UTC | re-inspection | seal intact · label legible · no visible degradation | V.O. |
| 2018-11-28 12:24 UTC | re-inspection | seal intact · label legible · no visible degradation | V.O. |
physical location: vault B · shelf 17 · drawer 27 · last documented inspection: 2018-11-28 12:24 UTC