Fluorescent Quartz, Cato Township, Wisconsin

This is an interesting specimen of colorless, banded, quartz that was dug up in a farm field in Cato Township, Manitowoc County, Wisconsin. Under short wave UV, a blue, banded, fluorescent response is seen with teal green streaks. The long wave response is a more uniform blue/purple color. This specimen is also dimly phosphorescent following exposure to short wave UV. 10.2 x 7.6 x 6.4 cm, 685 gms.

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