AM-2014-04001-A · Malachitearchived
physical & structuralrev. 1
| 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 | Banded green |
| type locality | Kolwezi, Lualaba, DR Congo |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 156, 178, 220, 270, 433, 1097
notessubmitter remarks + registry
Botryoidal masses with concentric banding.
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. |
|---|---|---|---|
| 2014-12-08 16:34 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | N.P. |
| 2014-12-10 12:14 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | C.B. |
| 2014-12-21 08:38 UTC | pass B | Raman acquisition; 6 peaks above prominence threshold instrument: Renishaw inVia (532 nm) ref. checked: RRUFF R05009 | C.B. |
| 2014-12-23 08:05 UTC | storage | re-bagged, label re-printed; placed in vault C, shelf 19, drawer 15 | N.P. |
| 2016-12-22 08:45 UTC | re-inspection | seal intact · label legible · no visible degradation | T.J. |
| 2018-12-22 11:40 UTC | re-inspection | seal intact · label legible · no visible degradation | T.J. |
| 2020-12-21 08:18 UTC | re-inspection | seal intact · label legible · no visible degradation | T.J. |
| 2022-12-21 16:57 UTC | re-inspection | seal intact · label legible · no visible degradation | T.J. |
physical location: vault C · shelf 19 · drawer 15 · last documented inspection: 2022-12-21 16:57 UTC