AM-2017-10010-A · Garnet, var. almandinearchived
physical & structuralrev. 1
| 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) | 4.35 |
| colour | Deep red-brown |
| type locality | Chuquicamata, Antofagasta, Chile |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 351, 551, 918
notessubmitter remarks + registry
Donated as part of a private estate; no individual provenance retained.
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. |
|---|---|---|---|
| 2017-06-19 08:21 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | S.W. |
| 2017-06-22 09:35 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | R.E. |
| 2017-06-24 08:50 UTC | pass B | Raman acquisition; 3 peaks above prominence threshold instrument: Renishaw inVia (785 nm) ref. checked: RRUFF R05006 | R.E. |
| 2017-06-27 09:00 UTC | storage | re-bagged, label re-printed; placed in vault C, shelf 02, drawer 28 | S.W. |
| 2019-06-27 12:37 UTC | re-inspection | seal intact · label legible · no visible degradation | V.O. |
| 2021-06-26 11:52 UTC | re-inspection | seal intact · label legible · no visible degradation | V.O. |
| 2023-06-26 10:54 UTC | re-inspection | seal intact · label legible · no visible degradation | V.O. |
| 2025-06-25 12:05 UTC | re-inspection | seal intact · label legible · no visible degradation | V.O. |
physical location: vault C · shelf 02 · drawer 28 · last documented inspection: 2025-06-25 12:05 UTC