Esperite under shortwave UV Light



Esperite, calcite, franklinite, hardystonite, minor zincite and willemite from Franklin, New Jersey under shortwave UV light. The esperite fluoresces yellow, calcite orange-red, hardystonite violet-blue, willemite green, the zincite and franklinite are non-fluorescent. 4 1/2" x 3 1/2". From the collection of Zack and Ralph Bonard, photo by WP.


Esperite, calcite, franklinite, hardystonite, zincite and willemite from Franklin, NJ under shortwave UV Light