GYPSUM, MAGNETITE, fluorescent CALCITE – Sterling Mine, Sussex Co., New Jersey, USA
Colorless clear Gypsum sheets in fluorescent red SW / pink LW Calcite, with black Magnetite and green Malachite.
from Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex County, New Jersey, USA
ex "Sterling Hill Mining Museum, operated by the Hauck Family"
Measures approximately 4 x 2.5 x 1.5 inch, 8.64 oz / 102 x 63 x 38 mm, 245g
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).