Description

Remarkable specimen of billietite and uranotile from the former Marganc I uranium mine in the Haute Vienne department.

Billitite is a very rare mineral found in the oxidation zone of uranium deposits. It is named after the Belgian crystallographer Valère Louis Billiet. Its crystals are tabular, yellow with pseudohexagonal outlines, sometimes elongated.

Specimen by the naturalist dealer Deyrolle, delivered with box and original handwritten label.

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