AM-2016-10018-A · Garnet, var. almandinearchived
physical & structuralrev. 2
| designation | Garnet, var. almandine |
|---|---|
| chemical formula | Fe₃Al₂(SiO₄)₃ |
| classification | Nesosilicate / Garnet group |
| crystal system | Cubic |
| mohs hardness | 6.5 – 7.5 |
| density (g/cm³) | 4.38 |
| colour | Wine red, dodecahedral |
| type locality | Tsumeb, Otjikoto, Namibia |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 351, 551, 915, 1050
notessubmitter remarks + registry
Photographic record retained. Specimen temperature held at lab ambient throughout intake.
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. |
|---|---|---|---|
| 2016-12-11 09:56 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | C.B. |
| 2016-12-12 14:23 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | V.O. |
| 2016-12-20 15:21 UTC | pass B | Raman acquisition; 4 peaks above prominence threshold instrument: Horiba LabRAM HR (532 nm) ref. checked: RRUFF R05005 | V.O. |
| 2016-12-22 13:08 UTC | storage | re-bagged, label re-printed; placed in vault B, shelf 18, drawer 29 | C.B. |
| 2018-12-22 16:46 UTC | re-inspection | seal intact · label legible · no visible degradation | L.K. |
| 2020-12-21 15:35 UTC | re-inspection | seal intact · label legible · no visible degradation | L.K. |
| 2022-12-21 15:25 UTC | re-inspection | seal intact · label legible · no visible degradation | L.K. |
| 2024-12-20 09:08 UTC | re-inspection | seal intact · label legible · no visible degradation | L.K. |
physical location: vault B · shelf 18 · drawer 29 · last documented inspection: 2024-12-20 09:08 UTC