Larisa Nesheva, Denka Yanakieva, P. Petrov, Stela Atanasova-Vladimirova, Nadia Petrova, R. Vassileva, Ivanina Sergeeva, Z. Cherkezova-Zheleva, Daniela Paneva
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Planerite with aheylite and faustite from the Chala deposit, Spahievo Ore Field
Planerite, aheylite and faustite are minerals of the turquoise group. They were found in samples from the Chala deposit, Spahievo Ore Field. The samples consist of a small crystalline mass of the investigated mineral phases among quartz. Single spherulites up to 2 mm in size and aggregates of spherulites with a yellowish-greenish color are observed in small cavities. Transparent, colorless wavellite crystals and aggregates are crystallized on spherulites. For the first time in Bulgaria, the presence of aheylite was established.