An outstanding specimen of rich blue to light purple carletonite crystals decorated with quartz from this famous locality - Mont Saint-Hilaire, Quebec, Canada. The carletonite is one of the very rare mineral species unique for the type locality Mont Saint-Hilaire. It occurs only there and none has been found for many years. Crystals are not often seen and most of the pieces are just cleavages. This piece shows many crystals to 14mm with a good luster. The color varies from light purple to colorless and saturated royal blue. For references see the 1990 issue of The Mineralogical Record vol. 21, # 4. In very good condition – some contacts. On acrylic base.

World grade quality carletonite!