Superb crystals of hexagonal catapleiite from the famous Mont Saint-Hilaire, Quebec, Canada. It displays crystals to 16mm. They are sharp and well formed, with a strong light reflection and beige color. Black aegirine crystals grow above. For references see the 1990 issue of The Mineralogical Record vol. 21, # 4. Some aegirine damages. On acrylic base.

Excellent catapleiite!