Color-Change Calcite, Franklin, New Jersey

This is an interesting calcite specimen that was collected during the 2017 Super Diggg at Franklin, New Jersey. Found at night on the Buckwheat Dump, this calcite shows a unique multi-wavelength fluorescent response under UV. Under short wave UV the calcite fluoresces bright red/pink, but shows a deep blue response under long wave UV. The size of this specimen is 8 x 6 x 6 cm, and it weighs 234 grams.

Mouse over the scrolling image to see wavelength information.