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!

Red Fluorescent Spinel, Yenbai Province, Vietnam


This specimen consists of raspberry red, octahedral spinel crystals in a white marble matrix, from the An Phu Marble Mine, Luc Yen, Yenbai Province, Vietnam.  Under long wave UV, the spinel fluoresces deep, rich, red, and the marble matrix shows a moderate blue/white response.  Not all red spinel is created equal in terms of fluorescence.  Some fluoresces dimly, or not at all.  This is a particularly bright fluorescing specimen.  Size 36 x 32 x 24 mm, 25 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