Copper under shortwave UV Light



Copper, willemite, franklinite and minor calcite from Franklin from Franklin, NJ under shortwave UV light. The willemite fluoresces green, calcite weak orange, the copper and franklinite are non-fluorescent. 7" x 4". From the collection of, and photo by Robert A. Boymistruk.


Copper, willemite, franklinite and minor calcite from Franklin, NJ. under shortwave UV Light