AM-2013-10005-A · Goethitewithdrawn
This record has been withdrawn from active circulation. Historical metadata is retained for citation purposes only. Contact the registry before referencing this accession in new publications.
physical & structuralrev. 3
| designation | Goethite |
|---|---|
| chemical formula | FeO(OH) |
| classification | Oxide-hydroxide |
| crystal system | Orthorhombic |
| mohs hardness | 5 – 5.5 |
| density (g/cm³) | 4.29 |
| colour | Botryoidal black-brown |
| type locality | Bancroft, Ontario, Canada |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 247, 299, 383, 478, 683
notessubmitter remarks + registry
Crystals up to 15 mm on edge, with euhedral faces. On dolomite 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. |
|---|---|---|---|
| 2013-12-22 16:39 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | V.O. |
| 2013-12-25 13:38 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | C.B. |
| 2013-12-30 14:50 UTC | pass B | Raman acquisition; 5 peaks above prominence threshold instrument: Renishaw inVia (532 nm, low-power head) ref. checked: AMCSD #2812 | C.B. |
| 2013-12-31 10:21 UTC | storage | re-bagged, label re-printed; placed in vault D, shelf 28, drawer 08 | V.O. |
| 2015-12-31 13:37 UTC | re-inspection | seal intact · label legible · no visible degradation | R.E. |
| 2017-12-30 09:55 UTC | re-inspection | seal intact · label legible · no visible degradation | R.E. |
| 2019-12-30 09:45 UTC | re-inspection | seal intact · label legible · no visible degradation | R.E. |
| 2021-12-29 10:59 UTC | re-inspection | seal intact · label legible · no visible degradation | R.E. |
physical location: vault D · shelf 28 · drawer 08 · last documented inspection: 2021-12-29 10:59 UTC