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Article Dans Une Revue The Journal of Gemmology Année : 2023

An Historical Alexandrite from the Mineralogy Museum of Paris School of Mines

Résumé

A spectacular 42.54 ct faceted alexandrite belonging to the collection of the Mineralogy Museum of Paris School of Mines was non-destructively characterised for this report. This historical gem was exhibited in at least one exposition in Paris during the late 1870s and/or in 1880 before it was donated to the museum by lapidary Henri Garreaud in 1882. However, its geographic origin was not stated, and its gemmological properties have not been examined until now. Our study reveals that the gem's microscopic, chemical and spectroscopic characteristics are similar to those of alexandrite from Sri Lanka.
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hal-04379191 , version 1 (10-01-2024)

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Éloïse Gaillou, Stefanos Karampelas, Ugo Hennebois, Annabelle Herreweghe, Farida Maouche, et al.. An Historical Alexandrite from the Mineralogy Museum of Paris School of Mines. The Journal of Gemmology, 2023, 38 (8), pp.796-803. ⟨10.15506/JoG.2023.38.8.796⟩. ⟨hal-04379191⟩
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