Description

Brannerite crystals partially terminated in a pink calcite gangue, including an exceptional crystal measuring nearly 4 cm, from the Villette quarry, Aime, Savoie department.

The Villette quarry, renowned for its hyaline quartz on dolomite and calcite, has recently yielded exceptional brannerite crystals in a metasomatic enclave, sometimes associated with native gold, a discovery recently reported in the magazine “Le Règne Minéral”.

Brannerite is a naturally radioactive tetravalent uranium titanate.

Here’s a video of this very fine brannerite crystal from Savoie:

This post is also available in: French