Marvelous rare crystals of gemmy Carletonite. The Carletonite is one of the very rare mineral species unique for the type locality Mont Saint-Hilaire. Crystals are not often seen. The specimen has one dominant 18mm cubic crystal and some smaller. The Carletonite has from rich royal blue color to lighter blue. The Carletonite is very well shaped and sharp, glassy, gemmy - beautifully exhibit its lovely colors. Some contacts. On acrylic base.

Superb Carletonite!