AM-2008-10007-A · Galenaunverified
The classification below is preliminary. Spectroscopic confirmation is incomplete; values shown reflect the most recent analytical pass and may be revised without notice.
physical & structuralrev. 3
| designation | Galena |
|---|---|
| chemical formula | PbS |
| classification | Sulfide / Galena group |
| crystal system | Cubic |
| mohs hardness | 2.5 – 2.75 |
| density (g/cm³) | 7.41 |
| colour | Tarnished dull grey |
| type locality | Anjanabonoina, Madagascar |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 72, 97, 134, 438
notessubmitter remarks + registry
Photographic record retained. Single-pass examination only; no follow-up planned.
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. |
|---|---|---|---|
| 2008-08-05 13:04 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | P.S. |
| 2008-08-06 11:18 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | S.W. |
| 2008-08-20 15:10 UTC | pass B | Raman acquisition; 4 peaks above prominence threshold instrument: Renishaw inVia (785 nm) ref. checked: ICDD card 04-9641 | S.W. |
| 2008-08-21 11:39 UTC | storage | re-bagged, label re-printed; placed in vault B, shelf 24, drawer 13 | P.S. |
| 2010-08-21 13:31 UTC | re-inspection | seal intact · label legible · no visible degradation | P.S. |
| 2012-08-20 11:05 UTC | re-inspection | seal intact · label legible · no visible degradation | P.S. |
| 2014-08-20 08:58 UTC | re-inspection | seal intact · label legible · no visible degradation | P.S. |
| 2016-08-19 14:03 UTC | re-inspection | seal intact · label legible · no visible degradation | P.S. |
physical location: vault B · shelf 24 · drawer 13 · last documented inspection: 2016-08-19 14:03 UTC