AM-2025-10006-A · Quartz, var. citrinewithdrawn
This record has been withdrawn from active circulation.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. 3
| designation | Quartz, var. citrine |
|---|---|
| chemical formula | SiO₂ |
| classification | Tectosilicate / Quartz group |
| crystal system | Trigonal |
| mohs hardness | 7 |
| density (g/cm³) | 2.66 |
| colour | Faintly honey yellow |
| type locality | Carrock mine, Cumbria, England |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 128, 205, 265, 463, 697, 1085
notessubmitter remarks + registry
Crystals up to 17 mm on edge, with euhedral faces. Specimen mounted on a fragment of host rock.
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. |
|---|---|---|---|
| 2025-05-26 08:13 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | R.E. |
| 2025-05-30 11:18 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | T.J. |
| 2025-06-08 08:47 UTC | pass B | Raman acquisition; 6 peaks above prominence threshold instrument: Renishaw inVia (532 nm, low-power head) ref. checked: AMCSD #6764 | T.J. |
| 2025-06-09 16:04 UTC | storage | re-bagged, label re-printed; placed in vault A, shelf 03, drawer 15 | R.E. |
physical location: vault A · shelf 03 · drawer 15 · last documented inspection: 2025-06-09 16:04 UTC