Fluorescent Sodalite, “Yooperlite”
Just back from the Mobile, Rock and Gem. Society’s annual rock show. Scored this interesting rock while I was there and always learn SOOOOOO much!
Fluorescent Sodalite “Yooperlite”
Found in syenite casts (holes). Syenite is a coarse granite material high in alkali feldspar (>65%) and does not contain quartz.
Fluorescent sodalite is high in sodium with a hardness of 5.5 to 6.
It is most commonly blue but can be pink, purple, brown, green, white, clear or blue with streaks.
This is what happens when you subject it to a black light.