fluorescent HARDYSTONITE, WILLEMITE with FRANKLINITE - Franklin Mine, New Jersey
Blue SW LW fluorescing Hardystonite, green SW LW fluorescing Willemite, red SW fluorescent Calcite, black Franklinite, and light brown Zn-Diopside ("Zinc Schefferite").
from Franklin Mine, Franklin, Franklin Mining District, Sussex County, New Jersey - Hardystonite and Franklinite type locality
the mine is closed since 1954
Measures approximately 2.5 x 2 x 2 inch, 10.47 oz / 63 x 51 x 51 mm, 297g
Item # A0340414
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).