AM-2012-10002-A · Marcasitearchived
physical & structuralrev. 2
| designation | Marcasite |
|---|---|
| chemical formula | FeS₂ |
| classification | Sulfide / Marcasite group |
| crystal system | Orthorhombic |
| mohs hardness | 6 – 6.5 |
| density (g/cm³) | 4.91 |
| colour | Pale brass yellow with greenish cast |
| type locality | Skardu, Gilgit-Baltistan, Pakistan |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 322, 385
notessubmitter remarks + registry
Submitter cited the type locality. Specimen retained for reference; no chain-of-custody documentation available beyond the submission packet.
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. |
|---|---|---|---|
| 2012-02-24 11:22 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | N.P. |
| 2012-02-28 12:24 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | P.S. |
| 2012-03-02 10:43 UTC | pass B | Raman acquisition; 2 peaks above prominence threshold instrument: Renishaw inVia (785 nm) ref. checked: ICDD card 04-2654 | P.S. |
| 2012-03-03 12:07 UTC | storage | re-bagged, label re-printed; placed in vault C, shelf 13, drawer 04 | N.P. |
| 2014-03-03 12:56 UTC | re-inspection | seal intact · label legible · no visible degradation | V.O. |
| 2016-03-02 13:40 UTC | re-inspection | seal intact · label legible · no visible degradation | V.O. |
| 2018-03-02 10:33 UTC | re-inspection | seal intact · label legible · no visible degradation | V.O. |
| 2020-03-01 16:40 UTC | re-inspection | seal intact · label legible · no visible degradation | V.O. |
physical location: vault C · shelf 13 · drawer 04 · last documented inspection: 2020-03-01 16:40 UTC