Striking blue and 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 8mm cubic crystal and some smaller. 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.

Marvelous Carletonite!