A cool specimen of quartz var. smoky from the famous Poudrette quarry, Mont Saint-Hilaire, Quebec, Canada. It has a rich and intense smoky-black color, good luster and transparency. The crystals are sharp and doubly terminated. Complete all over. For references see the 1990 issue of The Mineralogical Record vol. 21, # 4. In good condition – some contacts.
Excellent smoky quartz!