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-2011-04099-A

AM-2011-04099-A · Hematite, var. speculararchived

physical & structuralrev. 1
designationHematite, var. specular
chemical formulaFe₂O₃
classificationOxide / Hematite group
crystal systemTrigonal
mohs hardness5 – 6
density (g/cm³)5.26
colourSteel grey to black, red streak
type localityRio Marina, Elba, Italy
raman spectroscopy532 nm · pass A
200400600800100012001400Raman shift (cm⁻¹)intensity (arb.)2252452924114976121320
λ_excitation: 532 nm · acq. 3 × 10 s · grating 1800 g/mmfig. 1 · raman.am-2011-04099-a.svg

reported peaks (cm⁻¹): 225, 245, 292, 411, 497, 612, 1320

notessubmitter remarks + registry

Tabular crystals on matrix; specularite habit dominant.