AM-2008-10002-A · Sideriteunverified
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. 2
| designation | Siderite |
|---|---|
| chemical formula | FeCO₃ |
| classification | Carbonate / Calcite group |
| crystal system | Trigonal |
| mohs hardness | 3.5 – 4.5 |
| density (g/cm³) | 3.83 |
| colour | Pale honey brown |
| type locality | Mont Saint-Hilaire, Quebec, Canada |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 185, 281, 1733
notessubmitter remarks + registry
Siderite of ordinary appearance and habit. Used as a calibration reference during the analytical pass.
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. |
|---|---|---|---|
| 2008-06-29 08:35 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | N.P. |
| 2008-07-03 08:49 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | N.P. |
| 2008-07-06 14:18 UTC | pass B | Raman acquisition; 3 peaks above prominence threshold instrument: Renishaw inVia (785 nm) ref. checked: AMCSD #9711 | N.P. |
| 2008-07-09 13:00 UTC | storage | re-bagged, label re-printed; placed in vault C, shelf 27, drawer 24 | N.P. |
| 2010-07-09 10:07 UTC | re-inspection | seal intact · label legible · no visible degradation | M.A. |
| 2012-07-08 16:52 UTC | re-inspection | seal intact · label legible · no visible degradation | M.A. |
| 2014-07-08 09:54 UTC | re-inspection | seal intact · label legible · no visible degradation | M.A. |
| 2016-07-07 11:35 UTC | re-inspection | seal intact · label legible · no visible degradation | M.A. |
physical location: vault C · shelf 27 · drawer 24 · last documented inspection: 2016-07-07 11:35 UTC