fluorescent WILLEMITE with ZINCITE - Sterling Hill, New Jersey, USA
Red-orange Zincite, black Franklinite, SW LW green fluorescing Willemite, and white coating of Hydrozincite – some fluorescent weak dark blue SW. Small portions of Willemite are short lived phosphorescent.
from Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex County, New Jersey, USA – Zincite and Franklinite type locality
Measures approximately 3 x 2 x 1 inch, 8.18 oz / 76 x 51 x 25 mm, 232g
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).