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.


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