Swedenborgite in calcite


You can hardly distinguish between calcite and swedenborgite in white light. In SW-UV they couldn't be more different. Micheal Gaft, H. Yeates and Lev Nagli suggested that the presence of trivalent antimony may be the cause of the blue luminescence in a paper "Laser-induced time-resolved luminescence of natural margarosanite Pb(Ca,Mn)2Si3O9, swedenborgiteNaBe4SbO7 and walstromite BaCa2Si3O9", European Journal of Mineralogy 2013.
Locality: Langban, Sweden

Source: Fluorescent Minerals Workgroup MKA



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!