AM-2018-10010-A · Celestineunverified
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 | Celestine |
|---|---|
| chemical formula | SrSO₄ |
| classification | Sulfate / Barite group |
| crystal system | Orthorhombic |
| mohs hardness | 3 – 3.5 |
| density (g/cm³) | 3.99 |
| colour | Pale sky blue |
| type locality | Mavinkurve, Karnataka, India |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 451, 460, 620, 1002, 1157
notessubmitter remarks + registry
Celestine of ordinary appearance and habit. Used as a calibration reference during the analytical pass.
chain of custody8 events · 6 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. |
|---|---|---|---|
| 2018-04-23 10:33 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | M.A. |
| 2018-04-28 09:53 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | S.W. |
| 2018-05-04 13:25 UTC | pass B | Raman acquisition; 5 peaks above prominence threshold instrument: Renishaw inVia (532 nm) ref. checked: COD entry 190216 | S.W. |
| 2018-05-06 09:46 UTC | storage | re-bagged, label re-printed; placed in vault C, shelf 01, drawer 20 | M.A. |
| 2020-05-05 12:46 UTC | re-inspection | seal intact · label legible · no visible degradation | T.J. |
| 2022-05-05 08:58 UTC | re-inspection | seal intact · label legible · no visible degradation | T.J. |
| 2024-05-04 15:30 UTC | re-inspection | seal intact · label legible · no visible degradation | T.J. |
| 2026-05-04 15:40 UTC | re-inspection | seal intact · label legible · no visible degradation | T.J. |
physical location: vault C · shelf 01 · drawer 20 · last documented inspection: 2026-05-04 15:40 UTC