▲ Bourse minéraux et fossiles de Sainte Marie aux Mines (Alsace) - 24>28 juin 2026 ▲

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Bourse minéraux Sainte Marie aux Mines 2026, avec fossiles et gemmes.

Tourmaline noire et quartz

Vraisemblablement de la tourmaline noire fibreuse (Dixit les experts du forum), dans du quartz. Et quelques grenats. La face est polie.

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