Dims: 4.7 x 3.3 x 2.9" (11.9 x 8.4 x 7.4 cm)
Wt: 3 lbs., 1.7 oz. (1.410 kg)
Franklin, New Jersey, U.S.A.
This large display piece consists almost entirely of massive Hardystonite. The material shows no definable tetragonal form, and has a dull gray color and a dull waxy luster. It is opaque, and appears thoroughly unremarkable under normal light. However, when bathed in shortwave ultraviolet light, it glows a faint violet color. Bright green veins of willemite and a few small orange patches of clinohedrite will also be visible under UV irradiation.