AM-2021-10016-A · Rhodochrositearchived
physical & structuralrev. 3
| designation | Rhodochrosite |
|---|---|
| chemical formula | MnCO₃ |
| classification | Carbonate / Calcite group |
| crystal system | Trigonal |
| mohs hardness | 3.5 – 4 |
| density (g/cm³) | 3.69 |
| colour | Pale rose |
| type locality | Broken Hill, NSW, Australia |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 184, 289, 723, 1085, 1717
notessubmitter remarks + registry
Photographic record retained. Specimen temperature held at lab ambient throughout intake.
chain of custody6 events · 3 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. |
|---|---|---|---|
| 2021-01-28 09:38 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | T.J. |
| 2021-01-29 11:54 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | P.S. |
| 2021-02-04 16:55 UTC | pass B | Raman acquisition; 5 peaks above prominence threshold instrument: Renishaw inVia (785 nm) ref. checked: AMCSD #8097 | P.S. |
| 2021-02-05 12:52 UTC | storage | re-bagged, label re-printed; placed in vault A, shelf 19, drawer 26 | T.J. |
| 2023-02-05 09:03 UTC | re-inspection | seal intact · label legible · no visible degradation | P.S. |
| 2025-02-04 16:46 UTC | re-inspection | seal intact · label legible · no visible degradation | P.S. |
physical location: vault A · shelf 19 · drawer 26 · last documented inspection: 2025-02-04 16:46 UTC
errata · corrections of record1 entry
The following corrections have been issued for this record since accession. Original values are retained here for citation purposes; the canonical metadata above reflects the most recent correction.
| id | issued | field | was | now |
|---|---|---|---|---|
| ERR-2008-0001 | 2008-12-31 | color | white | milky white, occasionally translucent |