Fluorescent Yellow Chert/Chalcedony. Milwaukee Co, Wisconsin. 76 grams. Video

Description

LONG WAVE UV
Interesting White/Grey Chalcedony/Chert nodule that fluoresces a nice golden yellow under long wave UV light.
Found in Northern Milwaukee County, Wisconsin along the lake Michigan shoreline.
I am not certain of the reactive element that causes it but likely a carbonate mineral.
Chalcedony/Chert nodules like this are not that unusual of a find along the lake Michigan beaches but ones that fluoresce this well are.
76 grams.
2-1/8" in length.
NOTE!
Photos taken with a 365nm Convoy2 bandpass filtered Long Wave UV light, if you use any other type of UV light you may get different results.
White and Grey Chert/Chalcedony. Milwaukee County Wisconsin, Lake Michigan shoreline.
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