Ellenbergite Visible Spectra (300 - 900 nm)

Image of the ellenbergite absorption spectrum

• ellenbergite spectrum; from the Dora Maira Massif, Western Alps, Italy. Replotted from the original data in Chopin & Langer (1988) Bulletin de Mineralogie 111, 17-27. Plotted as 1.0 cm thick. The color of this material is reported to come from intervalence charge transfer between face-sharing Fe²⁺ - Ti⁴⁺ octahedra.

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