Fluorescent Nepheline Syenite "Yooperlite", Milwaukee Co. Wisconsin. 33 grams.

Description

LONG WAVE UV
This is a broken half of a  Nepheline Syenite "Yooperlite" rock with fluorescent orange Sodalite. I break many of these to get a look at a fresh interior to examine the minerals under high magnification.
Fluoresces under long wave UV (Convoy S2 recommended, I have some in my store)
Weathered exterior from tumbling around in lake Michigan.
Collected in Milwaukee County Wisconsin along the Lake Michigan shoreline.
33 grams.
1-1/4" length.
NOTE!
I use a ConvoyS2 LONG WAVE 365nm UV flashlight with a band pass filter installed for finding these and the photos, you will need one as well to see the fluorescence as nicely as seen in photos.