Agate in rhyolite / thunderegg from Germany - fluorescent - old find - cabinet size

€35.00

Agate in rhyolite / thunderegg from the Teufelskanzel, Leistberg, Sankt Wandel, Germany
Strong green fluorescent under SW (caused by uranyl ions)
Found in the 1970’s. The collecting is strictly forbidden since the 1980’s
8 cm x 5 cm
196 gram