Blu-Ray 6x plus UVA LEDs fluorescense

A straw yellow filter helps filter out the strong violet/blue and leave the fluorescent colors.   But the darn dot is so bright, it overwhelms everything...

You'll find many rocks that glow; common ones include calcite (found most everywhere - just go to a roadcut at night), fluorite, apatites, ruby/spinel (and probably some red garnets as mentioned), sodalite, wernerite, and lots of special FL minerals...  There are hundreds but many are only responsive to the shorter UV wavelengths.

Optical calcite can be neat - it splits the beam in some cases....  Bring your laser to a local rock show (not the music kind) and you'll find lots of different glow rox.

Mike - glad you liked 'em (check out my auctions on Ebay for *real* glowrox - seller: minershop  (not an ad, just tryin' to convert a few people to glow hounds ;-))

Mark

Here's a pic of sodalite lit up by 405nm.....  The background is a sheet of white paper.

Here's another picture I took this morning.  It shows a piece of sodalite in natural light, then lit by the laser.  I "Waved" the laser over the rock to iluuminate the entire specimen somewhat evenly; trying to eliminate the laser hotspots.

The fluorescent pic was taken with a 1 second time exposure (f16, iso100) and a deep yellow lens filter (eliminates the violet/blue of the laser).  The fluorescent color and brightness of the sodalite is quite accurate.
Mark

And here's a fluorescent pic of the same rock above but lit by the LW LEDs in my laser unit (I have both the LD and 10 UV LEDs in my housing).

Thanks for the eye candy

Yuuuuuuummmmmmmmmyyyyyy