Many specimens from Franklin and Sterling Hill light up with beautiful reds and greens under short wave and green under long wave UV - light. This is small but stunning highly fluorescent specimen. Calcite glows red and willemite bright green, in a great pattern, under Short Wave (SW) UV light. Measures approximately 55x32x30 mm and weighs approximately 0,075 kilogramme.
hundred different minerals were found at these mines and most are listed in The Minerals of Franklin and Sterling Hill Table. The mines of Franklin and the Sterling Hill Mine at Ogdensburg, Sussex County in northwestern New Jersey are world famous and deservingly so. No other site can boast the same assortment of rare and interesting minerals.