AM-2014-10003-A · Goethiteunverified
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. 4
| designation | Goethite |
|---|---|
| chemical formula | FeO(OH) |
| classification | Oxide-hydroxide |
| crystal system | Orthorhombic |
| mohs hardness | 5 – 5.5 |
| density (g/cm³) | 4.29 |
| colour | Brown to yellowish brown |
| type locality | Andriamena, Betsiboka, Madagascar |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 247, 385, 477, 548, 686
notessubmitter remarks + registry
Photographic record retained. Specimen temperature held at lab ambient throughout 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. |
|---|---|---|---|
| 2014-07-01 12:48 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | S.W. |
| 2014-07-05 14:24 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | H.D. |
| 2014-07-19 08:14 UTC | pass B | Raman acquisition; 5 peaks above prominence threshold instrument: Renishaw inVia (532 nm, low-power head) ref. checked: COD entry 192660 | H.D. |
| 2014-07-20 08:01 UTC | storage | re-bagged, label re-printed; placed in vault C, shelf 19, drawer 01 | S.W. |
| 2016-07-19 11:36 UTC | re-inspection | seal intact · label legible · no visible degradation | N.P. |
| 2018-07-19 14:54 UTC | re-inspection | seal intact · label legible · no visible degradation | N.P. |
| 2020-07-18 11:15 UTC | re-inspection | seal intact · label legible · no visible degradation | N.P. |
| 2022-07-18 15:43 UTC | re-inspection | seal intact · label legible · no visible degradation | N.P. |
physical location: vault C · shelf 19 · drawer 01 · last documented inspection: 2022-07-18 15:43 UTC