Superb aegirine blade from this famous locality - Mont Saint-Hilaire, Quebec, Canada. It is an elongated 60mm crystal with a black color and strong luster. It is very well shaped and quite big for the mine. It has an attractive display from both sides. For references see the 1990 issue of The Mineralogical Record vol. 21, # 4. In very good condition – some small contacts. On acrylic base.

Magnificent!