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445nm through calcite = red

  • Thread starter Thread starter Deleted member 16589
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Deleted member 16589

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OK so i got bored today and fired my 445 build into a peace of calcite ( don't ask me why I was just bored ) and was surprised at what I saw.
The laser left a red streak through the stone that lasted a second or 2 after cutting off the laser.
here are some pictures
DSC09560.jpg

DSC09559.jpg

DSC09563.jpg

DSC09562.jpg

DSC09570.jpg


Thought I would share for all you rock collectors out there. :wave:
 





Cool pictures.
Too bad your 405nm is dead.
Have you tried it with anything but the 445nm?
 
i believe its called phosphorescence, ive got some stone dresser tops that glow red when i pass my 405 across them
 
i believe its called phosphorescence, ive got some stone dresser tops that glow red when i pass my 405 across them

Close. It's fluorescence.
Phosphorescence means that it keeps glowing after the light is turned off.

The majority (but not all) calcite fluoresces red/orange under light stimulation

Usually it is UV light, but sometimes things react to light in the visible spectrum as well

There are lots more ;)

800px-Fluorescent_minerals_hg.jpg


Peace,
dave
 
Last edited:
Dave,
Please post a pic of the Septarian under normal light. That's the wierdest response i've ever seen (under short wave, right?).

@OP, sorry for the thread jack....
 
Sorry to perpetuate the threadjack but...
Where did you get the picture from there Dave ?
Does it include a caption or anything telling of all the minerals shown ?
(Looking for a simple quick reference guide that I can take camping now that I see it.)
 
Sorry to perpetuate the threadjack but...
Where did you get the picture from there Dave ?
Does it include a caption or anything telling of all the minerals shown ?
(Looking for a simple quick reference guide that I can take camping now that I see it.)

The Photo is from Hannes Grobe.

Here's the link to find out the name of each mineral in the photo.
 


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