Analcime, Feldspar, Polylithionite - Mt. St. Hilaire, Canada

Contributed by: Mark Cole
Date: Mar 27th, 2026
Locality: Poudrette quarry (De-Mix quarry; Demix quarry; Uni-Mix quarry; Carrière Mont Saint-Hilaire; MSH), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada (See on Mindat)

Description:
Originally posted by Mark Cole on Nature's Rainbows in 2015.

Fluorescence under shortwave UV light.

Summary of luminescence responses:

Analcime (Mindat) (RRUFF)

• Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Green

• Fluorescence under Shortwave (254nm Lamp/Mercury) UV light: Red