CIBJO releases Gemmological Special Report: considers process of separating measurable facts from opinion; See Gemological Articles below.
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 Post subject: Conoscopy
PostPosted: Thu Feb 02, 2006 11:39 am 
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For those of you that enjoy searching out optic figures with your polariscope, the link below will show you some advanced or at least different techniques using equipment that may be more familiar to the petrologist.

I believe Doos has been researching the use of wave plates and quartz wedge for determining optic sign.

Some great photos, so enjoy.

http://users.skynet.be/jm-derochette/conoscopy.htm


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PostPosted: Thu Feb 02, 2006 11:44 am 
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Yes a very good site, nice guy aswell.


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PostPosted: Thu Feb 02, 2006 12:24 pm 
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Here's one more with a simple explaination of interference figures. I know you had a chat on this at one time but pictures and diagrams are always helpful.

http://www.uwgb.edu/dutchs/petrolgy/intfig1.htm


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PostPosted: Thu Feb 02, 2006 3:27 pm 
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AHA!

I saw some other pages by Prof. Dutch but this one escaped me. The biaxial images are very helpfull, thanks!


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PostPosted: Wed Mar 01, 2006 4:58 pm 
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Doos,
You may find this helpful with your research if you haven't ran across it yet.

http://v5o5jotqkgfu3btr91t7w5fhzedjaoaz ... 0&%208.pdf


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PostPosted: Wed Mar 01, 2006 5:24 pm 
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Thanks, didn't see that one yet.
Good to see that the idea is rubbing off on you aswell. It really is fun.


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PostPosted: Wed Mar 01, 2006 5:28 pm 
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Nah, I'm just an enabler. :P


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PostPosted: Sun Apr 23, 2006 12:24 am 
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OMG! I can't believe I misse this!
Thanks JB!! This is really helping me!!

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~Knowledge is Power and Power Corrupts, so Study and be Evil~


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