AM-2015-10003-A · Olivine (forsterite)archived
physical & structuralrev. 1
| designation | Olivine (forsterite) |
|---|---|
| chemical formula | (Mg,Fe)₂SiO₄ |
| classification | Nesosilicate / Olivine group |
| crystal system | Orthorhombic |
| mohs hardness | 6.5 – 7 |
| density (g/cm³) | 3.34 |
| colour | Pale greenish-yellow |
| type locality | Schneeberg, Saxony, Germany |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 823, 856
notessubmitter remarks + registry
Crystals up to 18 mm on edge, with euhedral faces. No accompanying 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. |
|---|---|---|---|
| 2015-05-26 16:15 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | R.E. |
| 2015-05-28 11:38 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | M.A. |
| 2015-06-10 14:05 UTC | pass B | Raman acquisition; 2 peaks above prominence threshold instrument: Horiba LabRAM HR (532 nm) ref. checked: RRUFF R05003 | M.A. |
| 2015-06-13 12:54 UTC | storage | re-bagged, label re-printed; placed in vault D, shelf 04, drawer 23 | R.E. |
| 2017-06-12 15:37 UTC | re-inspection | seal intact · label legible · no visible degradation | H.D. |
| 2019-06-12 15:05 UTC | re-inspection | seal intact · label legible · no visible degradation | H.D. |
| 2021-06-11 11:10 UTC | re-inspection | seal intact · label legible · no visible degradation | H.D. |
| 2023-06-11 16:48 UTC | re-inspection | seal intact · label legible · no visible degradation | H.D. |
physical location: vault D · shelf 04 · drawer 23 · last documented inspection: 2023-06-11 16:48 UTC