Old 09-23-2011, 07:46 PM #1
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Default Strange fluorescent phenomenon

Today I tried to enlighten my mineral collection (more than 100 pieces) with a blue-ray laser (405 nm) and a mineral called fuchsite showed a strange phenomenon, it start glowing for a few seconds only in some located points of the rock. If I have time in the future I will try to investigate the phenomenon




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Strange fluorescent phenomenon-fuchsite.jpg   Strange fluorescent phenomenon-p9230003.jpg  


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Old 09-23-2011, 07:49 PM #2
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Default Re: Strange fluorescent phenomenon

AWESOME!!

michel.
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Old 09-23-2011, 08:00 PM #3
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Default Re: Strange fluorescent phenomenon

That is pretty cool! Natural glow-in-the-dark, just scrape some off and glue it to some paper.
I'v always been a rock hound, would love to see a bit more of your collection.
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Old 09-23-2011, 08:06 PM #4
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Default Re: Strange fluorescent phenomenon

What you got happening there is simular to something I noticed with a few of my samples of Fluorescent minerals. Notably, (correction: Flourite CaF2) There is a phenomena known as delayed fluorescence or after fluorescence. Your sample is the longest delay I have seen so far. Interesting. Are you able to get a closeup of the glowing area? I am very curious!!

FYI, Fuchsite also quite commonly contains red ruby. I can see from your picture that you do indeed have ruby in your sample.
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Old 09-23-2011, 08:09 PM #5
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Default Re: Strange fluorescent phenomenon

Quote:
Originally Posted by chipdouglas View Post
AWESOME!!


Quote:
Originally Posted by 532 with Envy
would love to see a bit more of your collection.
Thanks I'll post them in "off topic" section

EDIT:
Quote:
Originally Posted by Seoul_lasers
What you got happening there is simular to something I noticed with a few of my samples of Fluorescent minerals. Notably, Willemite, Zn2SiO4. There is a phenomena known as delayed fluorescence or after fluorescence. Your sample is the longest delay I have seen so far. Interesting. Are you able to get a closeup of the glowing area? I am very curious!!

FYI, Fuchsite also quite commonly contains red ruby. I can see from your picture that you do indeed have ruby in your sample.

thanks, I didn't know this phenomenon ...have you posted your minerals on the forum?
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Old 09-23-2011, 08:52 PM #6
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Default Re: Strange fluorescent phenomenon

yes, I have a video of the Willemite exhibiting (briefly) an orange after fluorescence.
CORRECTION : Sorry, actually it was Flourite that had the delayed fluorescence. CaF2. pink under UV and 405nm.
Willemite does glow bright orange/yellow.

http://laserpointerforums.com/f48/vi...ray-66905.html
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Old 09-23-2011, 09:02 PM #7
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Default Re: Strange fluorescent phenomenon

Pretty cool ! I can say ! I love fluorescent phenomenons!
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Old 09-23-2011, 09:38 PM #8
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Default Re: Strange fluorescent phenomenon

I love these fluorescence effects...can't wait to get my hands on an 405nm laser
Thanks for posting your finding!
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