Powellite under shortwave UV Light



Powellite, calcite, franklinite and minor quartz from the Sterling Hill Mine, NJ under shortwave UV light. The powellite fluoresces light yellow and calcite red-orange, the franklinite and quartz are non-fluorescent. Photo by WP.


Powellite, calcite, franklinite and minor quartz from the Sterling Hill Mine, NJ. under shortwave UV Light