AM-2009-10008-A · Cinnabararchived
withdrawal on file: later analysis reclassified the specimen below the registry's retention threshold (recorded 2025-01-21; classification withdrawn).
physical & structuralrev. 4
| designation | Cinnabar |
|---|---|
| chemical formula | HgS |
| classification | Sulfide |
| crystal system | Trigonal |
| mohs hardness | 2 – 2.5 |
| density (g/cm³) | 8.07 |
| colour | Brownish red, dull |
| type locality | Mavinkurve, Karnataka, India |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 254, 283, 343
notessubmitter remarks + registry
Crystals up to 17 mm on edge, sharply terminated. On dolomite matrix.
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. |
|---|---|---|---|
| 2009-05-30 14:46 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | M.A. |
| 2009-05-31 16:03 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | N.P. |
| 2009-06-12 14:03 UTC | pass B | Raman acquisition; 3 peaks above prominence threshold instrument: Renishaw inVia (785 nm) ref. checked: COD entry 133318 | N.P. |
| 2009-06-14 14:27 UTC | storage | re-bagged, label re-printed; placed in vault B, shelf 28, drawer 26 | M.A. |
| 2011-06-14 14:56 UTC | re-inspection | seal intact · label legible · no visible degradation | T.J. |
| 2013-06-13 10:53 UTC | re-inspection | seal intact · label legible · no visible degradation | T.J. |
| 2015-06-13 14:57 UTC | re-inspection | seal intact · label legible · no visible degradation | T.J. |
| 2017-06-12 13:30 UTC | re-inspection | seal intact · label legible · no visible degradation | T.J. |
physical location: vault B · shelf 28 · drawer 26 · last documented inspection: 2017-06-12 13:30 UTC