Laser illumination of satin spar obelisk

[Lux Nitida]

Wanted to see how my phone camera would do with taking some photos. I illuminated a satin spar obelisk with some of my lasers here are the results:

The obelisk:

650nm:

445nm:

650nm + 445nm:

532nm:

532nm + 445nm:

532nm + 650nm:

589nm:

589nm + 445nm:

589nm + 532nm:

I did try both 589nm and 650nm together but the camera didn't seem to capture any change between just the 589nm alone. To my eyes it got ever so slightly deeper orange. The way this was carried out was I illuminated the obelisk at the base and when two lasers were used I overlapped the beam spots on top of each other. Anyway, I enjoyed this little exercise, have a great day everyone!

 

[CurtisOliver]

Very nice images. Two other minerals I recommend looking into for optical properties are calcite (optical calcite) and boron ore (Ulexite or trade name tv rock). Optical calcite has strong birefringence so you get double refraction when shining lasers through it. And Ulexite like gypsum (selenite) that you have, has perfect cleavage on one plane. But instead it features parallel fibres so you can get a very cool fibre optic effect from the bottom surface of the fibres to the top. You can project light through the entirety of the mineral.

 

[RedCowboy]

Just playing with some glue sticks, the more transparent stick glows deeper in this case, crystals may be the same.