AM-2022-10013-A · Calcitewithdrawn
This record has been withdrawn from active circulation. Historical metadata is retained for citation purposes only. Contact the registry before referencing this accession in new publications.
physical & structuralrev. 4
| designation | Calcite |
|---|---|
| chemical formula | CaCO₃ |
| classification | Carbonate / Calcite group |
| crystal system | Trigonal |
| mohs hardness | 3 |
| density (g/cm³) | 2.72 |
| colour | Pale honey |
| type locality | Příbram, Central Bohemian Region, Czech Republic |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 714, 1087, 1749
notessubmitter remarks + registry
Standard calcite reference specimen. Supplied as a single piece on a small fragment of host matrix.
chain of custody5 events · 2 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. |
|---|---|---|---|
| 2022-11-28 16:06 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | R.E. |
| 2022-11-29 08:57 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | S.W. |
| 2022-12-07 12:34 UTC | pass B | Raman acquisition; 3 peaks above prominence threshold instrument: Renishaw inVia (532 nm, low-power head) ref. checked: RRUFF R05006 | S.W. |
| 2022-12-09 11:56 UTC | storage | re-bagged, label re-printed; placed in vault B, shelf 07, drawer 13 | R.E. |
| 2024-12-08 16:56 UTC | re-inspection | seal intact · label legible · no visible degradation | N.P. |
physical location: vault B · shelf 07 · drawer 13 · last documented inspection: 2024-12-08 16:56 UTC