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black spot on my zircon after heating on my stovetop
https://www.gemologyonline.com/Forum/phpBB2/viewtopic.php?f=24&t=23884
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Author:  rstrouf [ Wed Aug 09, 2017 2:55 pm ]
Post subject:  black spot on my zircon after heating on my stovetop

hi all, first post here. I had a very dark red zircon 5.25ct and one of our friends on this forum told me I can just heat it on my stove to lighten the color. well, it turned out a beautiful pink rose color, however, there seems to be a black patch on one of the facets... is it possible that part of the black stovetop coil burned onto it? I put in ultrasonic, nothing. is there some kind of acid I can use on zircon to see if this black comes off? thanks for your help.

Author:  Barbra Voltaire, FGG [ Wed Aug 09, 2017 5:00 pm ]
Post subject:  Re: black spot on my zircon after heating on my stovetop

Hi rstrouf.
Your post was not a Forum Announcement.
I've moved it to a more appropriate category.

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