AM-2023-10006-A · Quartzunverified
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. 2
| designation | Quartz |
|---|---|
| chemical formula | SiO₂ |
| classification | Tectosilicate / Quartz group |
| crystal system | Trigonal |
| mohs hardness | 7 |
| density (g/cm³) | 2.66 |
| colour | Colourless, transparent |
| type locality | Broken Hill, NSW, Australia |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 264, 464, 807, 1083
notessubmitter remarks + registry
Specimen accompanied by a single typewritten card listing the locality and the year of collection. No analytical data was supplied.
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. |
|---|---|---|---|
| 2023-10-15 13:22 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | V.O. |
| 2023-10-16 08:09 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | R.E. |
| 2023-10-18 10:42 UTC | pass B | Raman acquisition; 4 peaks above prominence threshold instrument: Renishaw inVia (785 nm) ref. checked: AMCSD #6139 | R.E. |
| 2023-10-20 09:56 UTC | storage | re-bagged, label re-printed; placed in vault D, shelf 25, drawer 13 | V.O. |
| 2025-10-19 16:10 UTC | re-inspection | seal intact · label legible · no visible degradation | N.P. |
physical location: vault D · shelf 25 · drawer 13 · last documented inspection: 2025-10-19 16:10 UTC
errata · corrections of record1 entry
The following corrections have been issued for this record since accession. Original values are retained here for citation purposes; the canonical metadata above reflects the most recent correction.
| id | issued | field | was | now |
|---|---|---|---|---|
| ERR-2022-0001 | 2022-06-11 | density | 3.5 | 3.49–3.55 |