MCGOVERNITE, fluorescing WILLEMITE - Sterling Mine, Ogdensburg, New Jersey, USA
Brown Mcgovernite, green SW LW fluorescing Willemite, and black Franklinite, in Calcite (fluorescent weak pink LW, weak red SW).
from Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex County, New Jersey, USA - Mcgovernite and Franklinite type locality
Mcgovernite occurs in Sterling Mine only
ex Franklin Mineral Museum
Measures approximately 3.5 x 2 x 1.5 inch, 8.11 oz / 89 x 51 x 38 mm, 230g
Price: 250.00 USD
Item # A0080516
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).