Crystal Prospect

fluorescent SODALITE with Aegirine - Mont Saint-Hilaire, Quebec, Canada

Orange LW fluorescent Sodalite with dark Aegirine (Acmite). The SW response is in moderate shades of red.

from Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire; MSH), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

at this locality, in 2017 , "collecting is restricted to one or two field trips per year, to small groups (drawn by lottery) of members of the Club de Minéralogie de Montréal, under very strict rules" (mindat.org)

Measures approximately 5 x 3 x 1.5 inch, 1 lb 3.15 oz / 127 x 76 x 38 mm, 543g

Item # A5431014

SOLD

To show the fluorescent response the specimen was illuminated using 6 watt 254nm (Short Wave) / 366nm (Long Wave) UVGL-58 lamp (you need a proper UV light source to observe the fluorescence, more powerful lamp = brighter response).