Description
Good smoky quartz crystal of the gwindel type with quite visible hourglass discoloration.
Gwindels are rare twisted quartz crystals with helical growth.
The edges are intact, the base broken.
Gwindel quartz crystal from the Talèfre glacier basin in the heart of the Mont Blanc massif, Chamonix, Haute-Savoie, France.
This post is also available in: French