AM-2010-10002-A · Quartz, var. citrinearchived
physical & structuralrev. 2
| designation | Quartz, var. citrine |
|---|---|
| chemical formula | SiO₂ |
| classification | Tectosilicate / Quartz group |
| crystal system | Trigonal |
| mohs hardness | 7 |
| density (g/cm³) | 2.65 |
| colour | Smoky-yellow |
| type locality | Kovdor massif, Murmansk, Russia |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 128, 463, 1085
notessubmitter remarks + registry
Specimen accompanied by a single typewritten card listing the locality and the year of collection. No further provenance information.
chain of custody8 events · 6 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. |
|---|---|---|---|
| 2010-07-10 10:47 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | C.B. |
| 2010-07-12 10:27 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | M.A. |
| 2010-07-21 13:07 UTC | pass B | Raman acquisition; 3 peaks above prominence threshold instrument: Renishaw inVia (785 nm) ref. checked: ICDD card 04-7236 | M.A. |
| 2010-07-22 13:37 UTC | storage | re-bagged, label re-printed; placed in vault C, shelf 28, drawer 16 | C.B. |
| 2012-07-21 14:05 UTC | re-inspection | seal intact · label legible · no visible degradation | H.D. |
| 2014-07-21 15:51 UTC | re-inspection | seal intact · label legible · no visible degradation | H.D. |
| 2016-07-20 08:28 UTC | re-inspection | seal intact · label legible · no visible degradation | H.D. |
| 2018-07-20 12:58 UTC | re-inspection | seal intact · label legible · no visible degradation | H.D. |
physical location: vault C · shelf 28 · drawer 16 · last documented inspection: 2018-07-20 12:58 UTC