How to use the DICHROSCOPE to test gemstones for pleochroism

[@caroljahnke8263]

I'm so glad I read comments, because I have the one on the left, and I thought have been looking though the wrong end, but thanks to a few of the people watching, I know that I had it right. Thats a pretty big mistake to make for someone working with gem tools.

[@mstreasureseeker]

Great video except one thing the dichroscope on the left you use in the reverse the knob/bolt side down...

[@gemologypro]

Very nice demonstration. Well done!

[@mstreasureseeker814]

The only problem is you are using the calcite dichroscope UPSIDE DOWN as the bolt or knob side should be down toward the stone !

[@beatrizboccheciampe4941]

mstreasureseeker Ja Ja!

[@tariqumar9189]

Yes! you are right.

[@idonthaveaname42]

@@beatrizboccheciampe4941 thank you that was getting on my nerves

[@geralynbussnick600]

I am curious as to what light you are using. I can't seem to find anything like this anywhere.

[@bhushanthorat5951]

its really good but, there not properly shows in camera, hos to show two colour in dicroscope.

[@ruwanindrajith7701]

I would like to buy that light source he's using. can anybody tell me what's the name of that instrument and where can i buy it.? plz help me..

[@jesseechavarria2411]

Dam dude that was great!! Thank you!!

[@roberthamblett9619]

Dichroscope upside down and reflected light from side giving false pleochrosim ( look at the light source through the scope change colour a it is turned)

[@m.paulabel9538]

Does anyone know what light source he is using? I can't find it anywhere.

[@MegaMansoory]

adjusting the aperture of the camera accordingly would've allowed you to use the light source.

[@gaborf.7086]

Where can I buy this lamp? Or how find it in Google?

[@kienmm]

use phone screen with white backgroud

[@rajwarnakulasuriya5935]

You need to rotate the stone not the instrument

[@tekksavvy2242]

!