Brick Red Willemite (troostite) and Calcite, Franklin, New Jersey

27.9.2016

This specimen, from Franklin, New Jersey, is of mixed composition and contains brick-red willemite (troostite), white and greenish/white willemite, white calcite, and black grains of franklinite.  Under short wave UV the troostite and willemite fluoresce bright green and the calcite shows a typical red response.  The white willemite is also phosphorescent.  The size of this specimen is 54 x 52 x 51 mm, and it weighs 174 grams.

 

 

Please reload

Recent GlowNotes Posts

Please reload

Visit the GlowNotes Blog to view more - educational posts, equipment, minerals, photography and displays

Related Posts:

Please reload

Email comments or suggestions:

Home

RSS Feed
  • reddit
  • Facebook Social Icon

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

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!