Fluorescent phosphorescent WILLEMITE with FRANKLINITE in CALCITE - Sterling Hill, New Jersey, USA
Brilliant green SW fluorescent and phosphorescent Willemite in intense red SW fluorescing Calcite, in association with black Franklinite. Under LW UV there is some white fluorescence in the veins.
Momentary phosphorescence on Calcite - move lamp away quickly to observe.
from Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex County, New Jersey, USA - Franklinite type locality
Measures approximately 5 x 2 x 2 inch, 1 lb 15.60 oz / 127 x 51 x 51 mm, 896g
Price: 250.00 USD
Item # A0160115
To show the fluorescent response the specimen was illuminated using 6 watt 254nm (Short Wave) / 366nm (Long Wave) UVGL-58 lamp (you need a proper UV light source to observe the fluorescence, more powerful lamp = brighter response).