Fluorite under shortwave UV Light



Fluorite, calcite, willemite and franklinite from the Parker Shaft, Franklin, NJ under shortwave UV light. The fluorite fluoresces gray, willemite green and the calcite red-orange, franklinite is non-fluorescent. From the collection of, and photo by Robert A. Boymistruk.


Fluorite, calcite, willemite and franklinite from the Parker Shaft, Franklin, NJ under shortwave UV Light