AM-2026-00024-A · Bornite (Cu₅FeS₄)archived
physical & structuralrev. 1
| designation | Bornite (Cu₅FeS₄) |
|---|---|
| chemical formula | Cu₅FeS₄ |
| classification | Sulfide |
| crystal system | Orthorhombic |
| mohs hardness | 3 |
| density (g/cm³) | 5.07 |
| colour | Copper-red on fresh fracture, iridescent purple-blue tarnish |
| type locality | Wheal Jane, Cornwall, England, United Kingdom |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 263, 473
notessubmitter remarks + registry
Massive habit with copper-red colouration on fresh fracture surfaces, passing to iridescent purple-blue tarnish on exposed faces. Submitted as part of a small consignment of Cornish mine-dump material; locality recorded to mine level only.
chain of custody1 events · 0 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. |
|---|---|---|---|
| 2026-10-21 13:06 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | L.K. |
physical location: vault C · shelf 06 · drawer 12 · last documented inspection: 2026-10-21 13:06 UTC