AM-2017-10015-A · Chalcopyritearchived
physical & structuralrev. 4
| designation | Chalcopyrite |
|---|---|
| chemical formula | CuFeS₂ |
| classification | Sulfide |
| crystal system | Tetragonal |
| mohs hardness | 3.5 – 4 |
| density (g/cm³) | 4.20 |
| colour | Peacock blue, weathered surface |
| type locality | Weardale, County Durham, England |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 293, 320, 353
notessubmitter remarks + registry
Donated as part of a private estate; no individual provenance retained.
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. |
|---|---|---|---|
| 2017-01-21 14:08 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | T.J. |
| 2017-01-26 14:12 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | M.A. |
| 2017-02-04 15:45 UTC | pass B | Raman acquisition; 3 peaks above prominence threshold instrument: Horiba LabRAM HR (532 nm) ref. checked: COD entry 113960 | M.A. |
| 2017-02-05 13:47 UTC | storage | re-bagged, label re-printed; placed in vault C, shelf 18, drawer 32 | T.J. |
| 2019-02-05 16:41 UTC | re-inspection | seal intact · label legible · no visible degradation | S.W. |
| 2021-02-04 11:13 UTC | re-inspection | seal intact · label legible · no visible degradation | S.W. |
| 2023-02-04 13:48 UTC | re-inspection | seal intact · label legible · no visible degradation | S.W. |
| 2025-02-03 10:50 UTC | re-inspection | seal intact · label legible · no visible degradation | S.W. |
physical location: vault C · shelf 18 · drawer 32 · last documented inspection: 2025-02-03 10:50 UTC