Sphalerite under shortwave UV Light



Sphalerite, willemite, franklinite and minor calcite, from Franklin, NJ under shortwave UV light. The sphalerite fluoresces red, willemite green, calcite orange-red and the franklinite is non-fluorescent. 2 1/2" x 1 1/2". From the collection of, and photo by Robert A. Boymistruk.


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