Sphalerite under longwave UV Light



Mahogany sphalerite with sphalerite vein, willemite, calcite, franklinite from Sterling Hill Mine, Ogdensburg, NJ under longwave UV light. The mahogany sphalerite fluoresces red-orange, sphalerite vein orange, willemite green, the franklinite and calcite are non-fluorescent. 4 1/4" x 2". Photo by WP.


Mahogany sphalerite with sphalerite vein, willemite, calcite, franklinite from Sterling Hill Mine, Ogdensburg, NJ under longwave UV Light