Hyalite from Gallatin County, Montana

Green fluorescent hyalite on basalt matrix. The best fluorescence is under shortwave UV light, weaker under longwave. I have been told it was collected in the summer of 2019 or 2020, from a locality close to the Hyalite Canyon, near Bozeman in Gallatin County, Montana. The exact locality is currently being kept confidential.

7x5x4cm, 85g.


27 views0 comments

Email comments or suggestions:


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!