public catalogue · open access · last index pass 2026-05-08 08:14:02 UTChost: cat-pub-04 · build 0.14.3-prototype · rev rA9F2
overviewcatalogueAM-2018-10005-A

AM-2018-10005-A · Magnetitearchived

physical & structuralrev. 3
designationMagnetite
chemical formulaFe₃O₄
classificationOxide / Spinel group
crystal systemCubic
mohs hardness5.5 – 6.5
density (g/cm³)5.11
colourSteel grey, octahedral habit
type localityFreiberg district, Saxony, Germany
raman spectroscopy532 nm · pass A
200400600800100012001400Raman shift (cm⁻¹)intensity (arb.)303538670
λ_excitation: 532 nm · acq. 3 × 10 s · grating 1800 g/mmfig. 1 · raman.am-2018-10005-a.svg

reported peaks (cm⁻¹): 303, 538, 670

notessubmitter remarks + registry

Magnetite of ordinary appearance and habit. Used as a calibration reference during the analytical pass.