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 & structural rev. 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 spectroscopy 532 nm · pass A
200 400 600 800 1000 1200 1400 Raman shift (cm⁻¹) intensity (arb.) 247 385 477 548 686 λ_excitation: 532 nm · acq. 3 × 10 s · grating 1800 g/mm fig. 1 · raman.am-2014-10003-a.svg
reported peaks (cm⁻¹): 247, 385, 477, 548, 686
notes submitter remarks + registry
Photographic record retained. Specimen temperature held at lab ambient throughout intake.
provenance
accession AM-2014-10003-A submitted 2014-07-01 last modified 2022-07-01 submitter (hash) 9b2210 record revision 4 status unverified proof-hash 2a874c05743a9607976fe2605ffa96cfc250893e35c5147decae301f79e63706 citation
anonymousmaterials.com (n.d.). Record AM-2014-10003-A: Goethite. Public catalogue accession. Retrieved from https://anonymousmaterials.com/sample/AM-2014-10003-A
files
filename size raman.am-2014-10003-a.svg 2.0 KB meta.am-2014-10003-a.json 667 B photo.am-2014-10003-a.jpg —
Original photographic plate not retained in the public mirror; consult the registry for high-resolution scans.