rare
yooperlite
fluorescent sodalite syenite
The tell
In daylight it is an unremarkable grey rock, and no amount of looking will tell you. It takes a 365nm UV torch after dark, and then the sodalite veins blaze orange.
365nm specifically, because the cheap 395nm torches barely work. Grand Marais is the beach. Go after dark, and know that the glow is a scatter of blebs and short veins, never a bolt across the whole stone.
What it gets mistaken for
The facts
- also calledfluorescent sodalite syenite
- age~1.1 billion yrs
- where it turns upGrand Marais ยท 365nm UV, after dark
- on the chartrare · 250 stickers ever
Put it on the shelf
Every stone on this chart is drawn and kiss-cut at three inches. The rarer the stone, the fewer exist: only 250 yooperlite will ever be printed, then the run is retired.
10% of every order goes to the Roscommon County Animal Shelter.