AM-2018-04471-A · Realgarwithdrawn
This record has been withdrawn from active circulation. Historical metadata is retained for citation purposes only. Contact the registry before referencing this accession in new publications.
physical & structuralrev. 2
| designation | Realgar |
|---|---|
| chemical formula | As₄S₄ |
| classification | Sulfide |
| crystal system | Monoclinic |
| mohs hardness | 1.5 – 2 |
| density (g/cm³) | 3.56 |
| colour | Red to orange-red |
| type locality | Shimen, Hunan, China |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 144, 183, 222, 354
notessubmitter remarks + registry
Specimen withdrawn from active display due to light-induced alteration to pararealgar. Photographic record retained.
chain of custody7 events · 4 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. |
|---|---|---|---|
| 2018-11-29 15:02 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | V.O. |
| 2018-11-30 10:42 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | V.O. |
| 2018-12-08 16:01 UTC | pass B | Raman acquisition; 4 peaks above prominence threshold instrument: Horiba LabRAM HR (532 nm) ref. checked: COD entry 157310 | V.O. |
| 2018-12-10 10:58 UTC | storage | re-bagged, label re-printed; placed in vault A, shelf 17, drawer 05 | V.O. |
| 2020-12-09 13:40 UTC | re-inspection | seal intact · label legible · no visible degradation | R.E. |
| 2022-12-09 10:20 UTC | re-inspection | seal intact · label legible · no visible degradation | R.E. |
| 2024-12-08 15:24 UTC | re-inspection | seal intact · label legible · no visible degradation | R.E. |
physical location: vault A · shelf 17 · drawer 05 · last documented inspection: 2024-12-08 15:24 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-2023-0003 | 2023-10-21 | locality | Mount Saint-Hilaire | Mont Saint-Hilaire, Québec |