fluorescent BARYTE and CALCITE - Franklin Mine, Sussex Co, New Jersey, USA
White-cream SW fluorescing Baryte (Barite) with yellow-brown Andradite garnet, and part of Calcite (outside of the "baryte zone") fluorescent bright red SW.
ex Grace and Kennard Borden, ex Morris Museum
the mine is closed since 1954
Measures approximately 2.5 x 1.75 x 1.5 inch, 6.41 oz / 63 x 44 x 38 mm, 182g
this specimen is featured on mindat, minID: 9L7-VK3
Price: 600.00 USD
Item # A1401214
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).