fluorescent SPHALERITE and WILLEMITE - Taylor Road, Franklin, New Jersey, USA
Orange LW SW fluorescing adamantine Sphalerite “Cleiophane” with green SW fluorescing Willemite, a trace of blue SW fluorescent Hydrozincite, and black Magnetite crystals, in Calcite.
the Sphalerite is short lived phosphorescent. A few small spots of red SW fluorescence on Calcite.
Measures approximately 2.75 x 2 x 2 inch, 14.49 oz / 70 x 51 x 51 mm, 411g
Item # A1551213
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).