Beautiful 3-Color Rock from Franklin, New Jersey

This is a truly classic 3-color fluorescent rock from the Franklin Mine, Franklin, New Jersey, that provides a spectacular example of why Franklin is known as the Fluorescent Mineral Capital of the World. This specimen contains light colored hardystonite, willemite and calcite, and dark olive/brown andradite garnet. Under short wave UV, the hardystonite fluoresces blue, the willemite bright green, and the calcite red/orange. The andradite is not fluorescent. The size of this specimen is 6.4 x 6.0 x 4.8 cm, and it weighs 268 grams.

Email comments or suggestions:

Home

Nature’s Rainbows is a non-commercial web site maintained entirely by volunteer hobbyists and contributors.  Our mission is to provide information about UV and luminescence, premium fluorescent mineral photos, and a fluorescent mineral database for the enjoyment of FL mineral collectors around the world.  Information on this web site is covered under a Creative Commons License.


Feel free to contact us with comments and suggestions.

Like us on Facebook!

  • reddit
  • Facebook Social Icon

Subscribe to our RSS (Real Simple Syndication) feed to get new posts delivered directly to your desktop!