AM-2018-10018-A · Goethitearchived
physical & structuralrev. 3
| designation | Goethite |
|---|---|
| chemical formula | FeO(OH) |
| classification | Oxide-hydroxide |
| crystal system | Orthorhombic |
| mohs hardness | 5 – 5.5 |
| density (g/cm³) | 4.31 |
| colour | Brown to yellowish brown |
| type locality | Bancroft, Ontario, Canada |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 300, 384, 478, 550, 685
notessubmitter remarks + registry
Macroscopic appearance consistent with goethite; no surface alteration observed at the time of intake.
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. |
|---|---|---|---|
| 2018-05-07 08:57 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | S.W. |
| 2018-05-09 11:01 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | P.S. |
| 2018-05-11 09:35 UTC | pass B | Raman acquisition; 5 peaks above prominence threshold instrument: Horiba LabRAM HR (532 nm) ref. checked: AMCSD #1260 | P.S. |
| 2018-05-12 10:43 UTC | storage | re-bagged, label re-printed; placed in vault D, shelf 01, drawer 11 | S.W. |
| 2020-05-11 13:59 UTC | re-inspection | seal intact · label legible · no visible degradation | R.E. |
| 2022-05-11 16:54 UTC | re-inspection | seal intact · label legible · no visible degradation | R.E. |
| 2024-05-10 08:45 UTC | re-inspection | seal intact · label legible · no visible degradation | R.E. |
| 2026-05-10 11:04 UTC | re-inspection | seal intact · label legible · no visible degradation | R.E. |
physical location: vault D · shelf 01 · drawer 11 · last documented inspection: 2026-05-10 11:04 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-2025-0003 | 2025-02-21 | crystalSystem | trigonal | trigonal (R3̄c) |