Fluorescent orange Nepheline Syenite, Yooperlite, Wisconsin, 102 grams.

Description

Nepheline Syenite rock "Yooperlite" with orange fluorescing Sodalite in long wave UV light.
Not as much Sodalite visible on this sample,  and you WILL need a filtered Convoy series UV light to see the fluorescence well as shown in the photos. There also is a coating of clay minerals that is likely covering more Sodalite on the opposite side.
This is a fragment from a large boulder (1+ ton) "The Port Boulder" that was chiseled off.
From Ozaukee Co Wisconsin, Lake Michigan.
102 grams
2-3/4" in length
I can combine shipping with other purchases.
NOTE!
Photos taken with a 365nm Convoy2 filtered Long Wave UV light. You will need one similar as well to see the fluorescence. Cheap unfiltered long wave uv lights work ok but a filtered quality light gives preferable visual results. Thx.