Willemite+Calcite + Franklinite 123.64 ct.

Willemite+Calcite + Franklinite

Is an important zinc ore ,mainly found at Franklin, New Jersey. A zinc oxide with formula: Zn2SiO4 and hardness of 5.5. In this case is associated with calcite ( red) and Franklinite ( black)

Is highly fluorescent in green at short wave U.V. light

A real must for a collector who want something special.

Size:27.6x28.1x15.8 mm.

Weight: 123.64 ct.

CODE#5658