AM-2017-01882-A · Chrysocollaarchived
physical & structuralrev. 1
| designation | Chrysocolla |
|---|---|
| chemical formula | (Cu,Al)₂H₂Si₂O₅(OH)₄·nH₂O |
| classification | Phyllosilicate / hydrous |
| crystal system | Amorphous |
| mohs hardness | 2.5 – 3.5 |
| density (g/cm³) | 2.10 |
| colour | Cyan to greenish blue |
| type locality | Inspiration mine, Arizona, USA |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 663, 1015
notessubmitter remarks + registry
Botryoidal masses on quartz matrix.
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. |
|---|---|---|---|
| 2017-06-15 11:19 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | C.B. |
| 2017-06-18 12:43 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | C.B. |
| 2017-07-02 15:35 UTC | pass B | Raman acquisition; 2 peaks above prominence threshold instrument: Renishaw inVia (532 nm, low-power head) ref. checked: AMCSD #5417 | C.B. |
| 2017-07-04 10:40 UTC | storage | re-bagged, label re-printed; placed in vault B, shelf 27, drawer 27 | C.B. |
| 2019-07-04 15:39 UTC | re-inspection | seal intact · label legible · no visible degradation | N.P. |
| 2021-07-03 16:24 UTC | re-inspection | seal intact · label legible · no visible degradation | N.P. |
| 2023-07-03 15:37 UTC | re-inspection | seal intact · label legible · no visible degradation | N.P. |
| 2025-07-02 11:27 UTC | re-inspection | seal intact · label legible · no visible degradation | N.P. |
physical location: vault B · shelf 27 · drawer 27 · last documented inspection: 2025-07-02 11:27 UTC