Sphalerite under longwave UV Light



Sphalerite, willemite, franklinite and chrysotile from Sterling Hill Mine, NJ under longwave UV light. The sphalerite fluoresces golden orange and lavender (caused by phosphorescence), the franklinite, willemite 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 longwave UV Light