Dawsonite with Fluorite

specimen number:
2351005

location:
Francon Quarry, Montreal, Quebec, Canada

description:
An area very rich with sparkling micro crystals of white dawsonite, dark purple crystals of fluorite present as well. In very good condition.

The Francon Quarry, located in the Saint-Michel district of Montreal, Quebec, operated as a commercial limestone quarry for decades before closing in the 1980s. Geologically, the site features flat-lying Ordovician limestone intruded by alkaline igneous sills related to the Monteregian Hills event. During its active mining years and subsequent collecting periods, mineralogists and hobbyists discovered numerous rare cavity-filling minerals within the contact zones, making it a world-famous type locality for several unique mineral species.

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