Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers



(A) Mineral phosphorescence

paul1598419

Well-known member
Joined
Sep 20, 2013
Messages
18,418
Points
113
I also have a piece of Icelandic calcite and indeed it does not fluoresce, the birefringence is really interesting though! I always show my students when I teach my optics class, you can actually get a similar effect by laminating multiple pieces of glass with different refractive indices :)
I also have other samples of calcite that don't fluoresce and some that are green/yellowish, but the orange/red ones are the only ones that seem to trail behind the beam for a second.

There are many birefringent minerals. Quartz and Mica just off the top of my head are, and are used as wave plates. As for fluorescing; I have had many examples of Icelandic Calcite and not a one ever gave off a bit of fluorescing light. The ones that do are often opaque to translucent.
 
Last edited:







Top