AM-2009-10004-A · Cupriteactive
physical & structuralrev. 3
| designation | Cuprite |
|---|---|
| chemical formula | Cu₂O |
| classification | Oxide |
| crystal system | Cubic |
| mohs hardness | 3.5 – 4 |
| density (g/cm³) | 6.13 |
| colour | Dark red, submetallic |
| type locality | Ratnapura, Sabaragamuwa, Sri Lanka |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 147, 217, 412
notessubmitter remarks + registry
Standard cuprite reference specimen. Supplied as a single piece on a small fragment of host matrix.
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. |
|---|---|---|---|
| 2009-11-05 10:16 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | N.P. |
| 2009-11-10 09:30 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | L.K. |
| 2009-11-15 14:19 UTC | pass B | Raman acquisition; 3 peaks above prominence threshold instrument: Horiba LabRAM HR (532 nm) ref. checked: AMCSD #2884 | L.K. |
| 2009-11-17 12:04 UTC | storage | re-bagged, label re-printed; placed in vault B, shelf 10, drawer 02 | N.P. |
| 2011-11-17 12:11 UTC | re-inspection | seal intact · label legible · no visible degradation | S.W. |
| 2013-11-16 16:23 UTC | re-inspection | seal intact · label legible · no visible degradation | S.W. |
| 2015-11-16 13:02 UTC | re-inspection | seal intact · label legible · no visible degradation | S.W. |
| 2017-11-15 10:50 UTC | re-inspection | seal intact · label legible · no visible degradation | S.W. |
physical location: vault B · shelf 10 · drawer 02 · last documented inspection: 2017-11-15 10:50 UTC