Sphalerite under shortwave UV Light



Sphalerite, willemite, franklinite and chrysotile from Sterling Hill Mine, NJ under shortwave UV light. The sphalerite fluoresces dark orange and lavender (caused by phosphorescence) and the willemite green, the franklinite and chrysotile are non-fluorescent. From the collection of J. Thomas Jacob. Photo by WP.


Sphalerite, willemite, franklinite and chrysotile from Sterling Hill Mine, NJ. under shortwave UV Light