fluorescent WILLEMITE with FRANKLINITE - Franklin Mine, New Jersey, USA
Green SW LW fluorescent Willemite, red Zincite, and black Franklinite.
from Franklin Mine, Franklin, Franklin Mining District, Sussex County, New Jersey, USA - Franklinite and Zincite type locality
the mine is closed since 1954
Measures approximately 2.5 x 2 x 1 inch, 4.47 oz / 63 x 51 x 25 mm, 127g
Price: 60.00 USD
Item # A0141014
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).