Smoky quartz from Argentière Glacier, Chamonix, Chamonix-Mont-Blanc, Auvergne-Rhône-Alpes, France

Bi-terminated smoky quartz crystal perfectly placed on a well-sized granite matrix plate. A great example of the alpine mineralogy that can be found on the steep slopes of the Mont-Blanc mountains. The main crystal itself is 3.5 cm.