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Journal Article

Mn 3+ and the pink color of gem-quality euclase from northeast Brazil

Lætitia Gilles-Guéry, Laurence Galoisy, Jurgen Schnellrath, Benoit Baptiste, Georges Calas
Published: 01 March 2022
American Mineralogist (2022) 107 (3): 489–494.
DOI: https://doi.org/10.2138/am-2021-7838
...-forbidden transitions of Mn 3+ and Fe 3+ in octahedral site. (Color online.) The simultaneous pink and orange hues lead to the typical pink-orange coloration of euclase. The orange hue is related to the rising slope in the UV domain combined with an additional absorption at 24 000 cm −1...
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