I visited the Sterling hill zinc mine in N.J last fall and took the mine tour, well worth it if you likes mines and fluorescent minerals. After the tour I spent some time in the giant rock pile they have and came home with several cool ones. Here is about a 4 pound one that has Franklinite, Calcite, Willemite and Zincite.
The UV pics were taken using a 254nm shortwave lamp.
The UV pics were taken using a 254nm shortwave lamp.
