fluorescing CALCITE, WILLEMITE with FRANKLINITE - Sterling Hill, New Jersey, USA
Green SW LW fluorescing Willemite, black Franklinite and red SW / magenta LW fluorescing Calcite, with dark red Zincite.
One side is covered with fibrous looking "Calcozincite", over a slickenside (slip surface).
from Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex County, New Jersey, USA - Franklinite and Zincite type locality
Measures approximately 4.5 x 2.5 x 2 inch, 1 lb 5.80 oz / 114 x 63 x 51 mm, 617g
Price: 150.00 USD
Item # A0050320
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).