Fluorescent Nepheline Syenite Yooperlite, Milwaukee Co. Wisconsin, 19 grams.

Description

Nepheline Syenite rock "Yooperlite" with fluorescent (long wave) orange Sodalite. Very nice brightness, high quality. Flat "skipping stone" form.
Worn round and smooth from wave action of lake Michigan.
Collected in Milwaukee county Wisconsin along the lake Michigan shoreline.
19 grams.
1-1/2" length.
I can combine shipping.
NOTE!
I use a Convoy2 long wave 365nm UV flashlight with a band pass filter installed for finding these and photos, you will need one as well to see the fluorescence as nicely as seen in photos.