Willemite under shortwave UV Light



Mylonitized ore, willemite, franklinite and calcite from the 750 foot level near the zero fault, Sterling Hill, Ogdensburg, NJ under shortwave UV light. The willemite fluoresces green, calcite red-orange, and the franklinite is non-fluorescent. 5 1/2" x 3 1/2". From the collection of Zack and Ralph Bonard, photo by WP.


Mylonitized ore, willemite, franklinite and calcite from Sterling Hill, Ogdensburg, NJ under shortwave UV Light