GEMMOLOGIE

GEMMOLOGIE

Faten Hammami / Riadh Abidi

65,80 €
IVA incluido
Disponible
Editorial:
KS OmniScriptum Publishing
Año de edición:
2025
ISBN:
9786209266836
65,80 €
IVA incluido
Disponible

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La gemmologie est une discipline scientifique issue de la minéralogie qui étudie les gemmes, naturelles ou synthétiques, caractérisées par leur beauté, leur rareté et leur durabilité. Elle vise à déterminer la nature, la composition et l’origine des pierres précieuses et ornementales à travers leurs propriétés physiques, chimiques, optiques et cristallographiques. Les principales méthodes d’analyse reposent sur la mesure de la dureté, de la densité, de l’indice de réfraction, de la biréfringence et sur l’observation des phénomènes optiques tels que le pléochroïsme, la fluorescence ou la dispersion. Les instruments utilisés incluent le réfractomètre, le spectroscope, le polariscope, le dichroscope et la microscopie optique. Les gemmes se forment dans des environnements magmatiques, métamorphiques, sédimentaires ou organiques. La gemmologie étudie également les gemmes synthétiques et les traitements destinés à modifier leurs propriétés esthétiques. Elle occupe une place essentielle dans la certification, l’expertise et la valorisation des pierres précieuses, reliant ainsi la science des minéraux à leur usage artistique et économique.

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