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black diamond? https://www.gemologyonline.com/Forum/phpBB2/viewtopic.php?f=69&t=24699 |
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Author: | Stephen Challener [ Fri Sep 21, 2018 3:44 pm ] |
Post subject: | Re: black diamond? |
No, definitely not. The glassy conchoidal fracture suggests it is glass, likely industrial slag of some sort. |
Author: | Barbra Voltaire, FGG [ Fri Sep 21, 2018 3:50 pm ] |
Post subject: | Re: black diamond? |
Yep, I concur. Glass, most probably manufactured slag, with a very remote possibility that it could be obsidian. Not a diamond! |
Author: | kosmomar [ Sat Sep 22, 2018 4:20 am ] |
Post subject: | Re: black diamond? |
Thank you very much for your opinions! |
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