AM-2011-10018-A · Magnetitewithdrawn This record has been withdrawn from active circulation.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 & structural rev. 1
designation Magnetite chemical formula Fe₃O₄ classification Oxide / Spinel group crystal system Cubic mohs hardness 5.5 – 6.5 density (g/cm³) 5.13 colour Slightly tarnished, steel grey, octahedral habit type locality Yaogangxian mine, Hunan, China
raman spectroscopy 532 nm · pass A
200 400 600 800 1000 1200 1400 Raman shift (cm⁻¹) intensity (arb.) 304 538 667 λ_excitation: 532 nm · acq. 3 × 10 s · grating 1800 g/mm fig. 1 · raman.am-2011-10018-a.svg
reported peaks (cm⁻¹): 304, 538, 667
notes submitter remarks + registry
Macroscopic appearance consistent with magnetite; no surface alteration observed at the time of intake.
provenance
accession AM-2011-10018-A submitted 2011-11-14 last modified 2016-11-14 submitter (hash) f6c712 record revision 1 status withdrawn proof-hash e648d983d408e508dc3a34b492b4e1aa36ef41fee0df5cc826c1b4662c10e037 citation
anonymousmaterials.com (n.d.). Record AM-2011-10018-A: Magnetite. Public catalogue accession. Retrieved from https://anonymousmaterials.com/sample/AM-2011-10018-A
files
filename size raman.am-2011-10018-a.svg 1.6 KB meta.am-2011-10018-a.json 692 B photo.am-2011-10018-a.jpg —
Original photographic plate not retained in the public mirror; consult the registry for high-resolution scans.