AM-2018-10008-A · Hematitepending
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. 4
| designation | Hematite |
|---|---|
| chemical formula | Fe₂O₃ |
| classification | Oxide / Hematite group |
| crystal system | Trigonal |
| mohs hardness | 5 – 6 |
| density (g/cm³) | 5.23 |
| colour | Tabular, specular |
| type locality | Dalnegorsk, Primorsky Krai, Russia |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 223, 246, 294, 411, 498, 1318
notessubmitter remarks + registry
Crystals up to 21 mm on edge, sharply terminated. On quartz matrix.
chain of custody7 events · 4 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. |
|---|---|---|---|
| 2018-07-05 10:01 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | C.B. |
| 2018-07-08 16:14 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | V.O. |
| 2018-07-17 14:54 UTC | pass B | Raman acquisition; 6 peaks above prominence threshold instrument: Renishaw inVia (532 nm, low-power head) ref. checked: ICDD card 04-5813 | V.O. |
| 2018-07-20 16:44 UTC | storage | re-bagged, label re-printed; placed in vault A, shelf 14, drawer 27 | C.B. |
| 2020-07-19 15:48 UTC | re-inspection | seal intact · label legible · no visible degradation | H.D. |
| 2022-07-19 10:21 UTC | re-inspection | seal intact · label legible · no visible degradation | H.D. |
| 2024-07-18 10:02 UTC | re-inspection | seal intact · label legible · no visible degradation | H.D. |
physical location: vault A · shelf 14 · drawer 27 · last documented inspection: 2024-07-18 10:02 UTC