* Red/brown Willemite crystals variety Troostite in calcite with Franklinite. From the Sterling Hill Mine, Ogdendburg, Sussex Co. New Jersey. Highly fluorescent short wave. Excellent old time thumb nail specimen. 

* Specimen size: 20 x 18 x 15 mm approx. Largest crystal is 14 mm. long approx.

* All fluorescent photo's where taken using a powerful 8 watt fluorescent

lamp at varying distances in total darkness. Depending on you lamp, fluorescent

response may differ.