AM-2008-10008-A · Marcasitearchived
physical & structuralrev. 3
| designation | Marcasite |
|---|---|
| chemical formula | FeS₂ |
| classification | Sulfide / Marcasite group |
| crystal system | Orthorhombic |
| mohs hardness | 6 – 6.5 |
| density (g/cm³) | 4.85 |
| colour | Pale brass yellow with greenish cast |
| type locality | Imider mine, Drâa-Tafilalet, Morocco |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 325, 386
notessubmitter remarks + registry
Specimen accompanied by a single typewritten card listing the locality and the year of collection. Original collection number illegible due to ink fade.
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. |
|---|---|---|---|
| 2008-12-02 13:36 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | L.K. |
| 2008-12-06 16:30 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | T.J. |
| 2008-12-09 16:38 UTC | pass B | Raman acquisition; 2 peaks above prominence threshold instrument: Renishaw inVia (532 nm) ref. checked: ICDD card 04-6751 | T.J. |
| 2008-12-10 09:28 UTC | storage | re-bagged, label re-printed; placed in vault D, shelf 17, drawer 10 | L.K. |
| 2010-12-10 15:23 UTC | re-inspection | seal intact · label legible · no visible degradation | L.K. |
| 2012-12-09 14:26 UTC | re-inspection | seal intact · label legible · no visible degradation | L.K. |
| 2014-12-09 08:54 UTC | re-inspection | seal intact · label legible · no visible degradation | L.K. |
| 2016-12-08 09:18 UTC | re-inspection | seal intact · label legible · no visible degradation | L.K. |
physical location: vault D · shelf 17 · drawer 10 · last documented inspection: 2016-12-08 09:18 UTC
errata · corrections of record1 entry
The following corrections have been issued for this record since accession. Original values are retained here for citation purposes; the canonical metadata above reflects the most recent correction.
| id | issued | field | was | now |
|---|---|---|---|---|
| ERR-2010-0004 | 2010-07-25 | color | white | milky white, occasionally translucent |