David K. Joyce

Hardystonite, Willemite

12.0x9.8x8.8 cm

New Jersey, USA

Hardystonite, WillemiteHardystonite, Willemite

Item number: 29483

Bright green willemite and dark blue-purple hardystonite are the two fluorescent minerals here along with some fluorescent-red calcite and lots of non-fluorescent black franklinite. Hardystonite is a zinc silicate, that was not an ore mineral at Franklin.