MCGOVERNITE with fluorescent WILLEMITE - Sterling Hill, Sussex Co., New Jersey, USA
Green SW LW fluorescent Willemite, black Franklinite and shiny bronze plates of Mcgovernite on Calcite. Some of the Willemite is short lived phosphorescent. Minor pink LW fluorescence on Calcite.
Mcgovernite is a rare mineral, found only one locality worldwide
from Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex County, New Jersey, USA – Franklinite and Mcgovernite type locality
Measures approximately 3 x 2 x 1.75 inch, 13.86 oz / 76 x 51 x 44 mm, 393g
Price: 250.00 USD
Item # A3
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).