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Definitely not a peridot!

Daisys and Diamonds

Super_Ideal_Rock
Joined
Apr 30, 2019
Messages
10,693
Lol - I’m not exactly sure either, but the first shows figures that look like bubbles under the girdle. We couldn’t see them with the loupe, though.

The second and third photos are the same. I think it shows the same lines that are visible in the regular light photos. Possibly (probably) slightly curved striae.

It was very tricky. I was hand holding the stone, in regular tweezers (my hands are super tired now) and using lenses from sunglasses taped to the light box and microscope. and taking photos. It was a sight to see. Anyway, all in the service of learning.

Reminds me of making a pinhole camera at school
 

chrono

Super_Ideal_Rock
Premium
Joined
Apr 22, 2004
Messages
37,853
This has been a fascinating thread! Do you still think it is coated?
 

bright&shiny

Brilliant_Rock
Joined
May 11, 2009
Messages
538
This has been a fascinating thread! Do you still think it is coated?

I’m glad you are enjoying it, too! It doesn’t seem to be coated. We followed advice and soaked it it acetone. Along with some super scrubbing, most of the traces are gone. It’s been suggested it could be flux - which makes a lot of sense and would explain the brush marks. Those are completely gone now.
 
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