Perles naturelles · Création de bijoux · Livraison suivie

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Un guide minéralogique complet sur l’œil de tigre : matrice de quartz SiO₂, fibres d’amphibole altérées, oxydes de fer, chatoyance, formation et précautions de coupe.
Une explication claire de la formation de l’œil de tigre : fractures, crocidolite, quartz, oxydation du fer, modèles de pseudomorphose et crack-seal, puis origine de la chatoyance.

Pourquoi la bande lumineuse de l’œil de tigre semble-t-elle bouger ? Une explication gemmologique des fibres, de la réflexion, de la taille et du polissage.