Phlogopite on Calcite - Afghanistan

Phlogopite is found in matrix on marble and calcite usually. The marble is not fluorescent, but the calcite pieces are very nice - offering a striking pink/red background for the bright yellow fluorescing phlogopite crystals. Many of the crystals on this piece are nicely gemmy. On this specimen the phlogopite is bright yellow under SW UV. The calcite fluoresces under both SW and MW, but is brightest under MW. Displaying it under both lights offer the best color (first pic). The longwave pic is shown just for interest - a dull white fluorescence.

2 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!