Marvelous rare crystals of gemmy Carletonite. The Carletonite is one of the very rare mineral species unique for the type locality of Mont Saint-Hilaire, Canada. Crystals are not often seen. It displays cubic crystals to 5mm. The Carletonite has from rich royal blue to purple color. The crystals are glassy, lustrous and gemmy. Some contacts. On acrylic base.

Superb Carletonite!