AM-2014-10014-A · Malachitearchived
physical & structuralrev. 3
| designation | Malachite |
|---|---|
| chemical formula | Cu₂(CO₃)(OH)₂ |
| classification | Carbonate / hydrous |
| crystal system | Monoclinic |
| mohs hardness | 3.5 – 4 |
| density (g/cm³) | 4.05 |
| colour | Botryoidal dark green |
| type locality | Cavnic, Maramureș, Romania |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 155, 177, 270, 1097
notessubmitter remarks + registry
Photographic record retained. Routine intake; no anomalies noted.
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. |
|---|---|---|---|
| 2014-12-19 14:59 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | C.B. |
| 2014-12-20 09:45 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | S.W. |
| 2015-01-04 15:50 UTC | pass B | Raman acquisition; 4 peaks above prominence threshold instrument: Horiba LabRAM HR (532 nm) ref. checked: ICDD card 04-3223 | S.W. |
| 2015-01-05 15:24 UTC | storage | re-bagged, label re-printed; placed in vault B, shelf 10, drawer 07 | C.B. |
| 2017-01-04 16:18 UTC | re-inspection | seal intact · label legible · no visible degradation | V.O. |
| 2019-01-04 11:14 UTC | re-inspection | seal intact · label legible · no visible degradation | V.O. |
| 2021-01-03 13:57 UTC | re-inspection | seal intact · label legible · no visible degradation | V.O. |
| 2023-01-03 10:38 UTC | re-inspection | seal intact · label legible · no visible degradation | V.O. |
physical location: vault B · shelf 10 · drawer 07 · last documented inspection: 2023-01-03 10:38 UTC