four color fluorescent HARDYSTONITE, WILLEMITE, BUSTAMITE and CLINOHEDRITE - Franklin Mine, Sussex Co., New Jersey, USA
Violet-blue SW LW fluorescing Hardystonite, orange SW fluorescent Clinoherite, black Franklinite, green SW fluorescent Willemite - much exsolved in pale pink, weak red LW fluorescing Bustamite, with minor light brown Diopside "Schefferite".
Hardystonite is found at only a handful of localities worldwide, only two of which are "natural" (of non-anthropogenic origin)
Clinohedrite is found in 4 localities worldwide
from Franklin Mine, Franklin, Franklin Mining District, Sussex County, New Jersey, USA - Franklinite, Bustamite, Hardystonite and Clinohedrite type locality
the mine is closed since 1954
Measures approximately 2.5 x 2.25 x 1 inch, 6.70 oz / 63 x 57 x 25 mm, 190g
Price: 180.00 USD
Item # A0450514
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).