Zunyite, Big Bertha Mine, La Paz County, Arizona


Named after its type locality, the Zuni mine in San Juan County, Colorado, zunyite is an uncommon aluminum sorosilicate mineral that shows a soft, cherry red fluorescent response under short wave UV.  The specimen shown here features hundreds of small fluorescent zunyite crystals in a matrix of mostly non-fluorescent quartz.  This example is from a classic location for this material- the Big Bertha mine in La Paz County, Arizona.  This size of this specimen is 67 x 30 x 27 mm and it weighs 52 grams.

Small octahedral crystals of zunyite show a rich, soft red fluorescent response under short wave UV (254 nm).


Same specimen shown under visible light.  Small tan colored octahedral crystals of zunyite in a light/white matrix of milky quartz.

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:


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!