Superb, gem and lustrous small Carletonite cube. The Carletonite is one of the very rare mineral species unique for the type locality Mont Saint-Hilaire, Quebec, Canada. It has blue color in the center to colorless at the rims. The Carletonite is glassy and transparent. It is complete-all-around 7mm x 3mm x 3mm cube. In very good condition. On acrylic base.

Rare splendor!