fluorescent WILLEMITE and FRANKLINITE in KUTNOHORITE - Sterling Hill, New Jersey, USA
Caramel-orange Willemite crystals - fluorescent green SW and LW, with some zoning in the fluorescence - with black Franklinite, in pink Kutnohorite (Kutnahorite).
ex Rutgers Geology Museum
from Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex County, New Jersey, USA - Franklinite type locality
Measures approximately 4 x 3 x 1.5 inch, 1 lb 10.48 oz / 102 x 76 x 38 mm, 751g
this specimen is featured on mindat, minID # AM5-KEP
Price: 250.00 USD
Item # A1030114
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).