Crystal Prospect

fluorescent SPHALERITE with ZINCITE - Franklin, New Jersey, USA

Blue SW LW fluorescing Sphalerite "Cleiophane" with green SW fluorescent (some phosphorescent) Willemite, black Franklinite-Magnetite (magnetic) crystals, and red Zincite.

the association of Zincite and Sphalerite is rare

ex Franklin Mineral Museum - ex Dru Wilbur

from Franklin, Franklin Mining District, Sussex County, New Jersey, USA

Measures approximately 4.5 x 2.5 x 2 inch, 1 lb 11.67 oz / 114 x 63 x 51 mm, 784g

Price: 400.00 USD

Item # A0380614

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).