AM-2011-10008-A · Pyromorphitearchived
withdrawal on file: withdrawn pending reconciliation of conflicting Raman and XRD findings (recorded 2025-01-09; classification withdrawn).
physical & structuralrev. 2
| designation | Pyromorphite |
|---|---|
| chemical formula | Pb₅(PO₄)₃Cl |
| classification | Phosphate / Apatite supergroup |
| crystal system | Hexagonal |
| mohs hardness | 3.5 – 4 |
| density (g/cm³) | 7.02 |
| colour | Yellow-green, barrel-shaped |
| type locality | Imider mine, Drâa-Tafilalet, Morocco |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 406, 920, 1040
notessubmitter remarks + registry
Crystals up to 5 mm on edge, partly etched. Specimen mounted on a fragment of host rock.
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. |
|---|---|---|---|
| 2011-09-06 09:32 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | H.D. |
| 2011-09-08 15:10 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | S.W. |
| 2011-09-19 10:05 UTC | pass B | Raman acquisition; 3 peaks above prominence threshold instrument: Renishaw inVia (532 nm, low-power head) ref. checked: COD entry 115609 | S.W. |
| 2011-09-20 10:21 UTC | storage | re-bagged, label re-printed; placed in vault A, shelf 11, drawer 17 | H.D. |
| 2013-09-19 09:22 UTC | re-inspection | seal intact · label legible · no visible degradation | M.A. |
| 2015-09-19 09:38 UTC | re-inspection | seal intact · label legible · no visible degradation | M.A. |
| 2017-09-18 14:44 UTC | re-inspection | seal intact · label legible · no visible degradation | M.A. |
| 2019-09-18 16:31 UTC | re-inspection | seal intact · label legible · no visible degradation | M.A. |
physical location: vault A · shelf 11 · drawer 17 · last documented inspection: 2019-09-18 16:31 UTC