AM-2026-00020-A · Erythritewithdrawn
This record has been withdrawn from active circulation.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. 1
| designation | Erythrite |
|---|---|
| chemical formula | Co₃(AsO₄)₂·8H₂O |
| classification | Arsenate |
| crystal system | Monoclinic |
| mohs hardness | 1.5 – 2.5 |
| density (g/cm³) | 3.18 |
| colour | Crimson to peach-red |
| type locality | Cripple Creek, Colorado, United States |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 327, 825, 859
notessubmitter remarks + registry
Acicular to tabular crystals of crimson to peach-red colouration forming thin crusts on a quartz-bearing matrix. Specimen withdrawn from active handling owing to friability and progressive loss of adherent material during examination. Photographic and spectroscopic records retained.
chain of custody4 events · 1 seal-break
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. |
|---|---|---|---|
| 2026-10-01 16:54 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | T.J. |
| 2026-10-05 14:22 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | V.O. |
| 2026-10-11 14:50 UTC | pass B | Raman acquisition; 3 peaks above prominence threshold instrument: Renishaw inVia (532 nm, low-power head) ref. checked: RRUFF R05007 | V.O. |
| 2026-10-13 12:33 UTC | storage | re-bagged, label re-printed; placed in vault B, shelf 22, drawer 10 | T.J. |
physical location: vault B · shelf 22 · drawer 10 · last documented inspection: 2026-10-13 12:33 UTC