WILLEMITE FRANKLINITE CALCITE ROCK
A stunning specimen of Willemite Franklinite Calcite Rock showing off the brightest fluorescence of all natural minerals Willemite. This rare special specimen of Willemite Franklinite Calcite Rock is short and long wave fluorescent. Willemite (Green) is associated with Zinc ore and Zinc mining. Shown in pics with short wave UV light, long wave UV light and in normal light. Very cool stuff and this is one of my very favorite rocks. To view this spectacular specimen you will need a UVC Shortwave Lamp and UVA Longwave Lamp. Make sure you wear safety glasses. This specimen shows some Phosphorescence, which is when you take your UVA long wave away it will phosphoresce for a second or less.
Sterling Hill Mine, Franklin, New Jersey, USA.
9cm x 8.4cm x 5.5cm, 724g.
Willemite: Zn2Sio4, Zinc Silicate.
Franklinite: Zn2+Fe23+O4, Zinc Iron Manganese Oxide.
Calcium Carbonate: CaCO3 .