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black diamond?
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Author:  kosmomar [ Fri Sep 21, 2018 9:25 am ]
Post subject:  black diamond?

I have this very impressive black stone can sobody check if
it's a black diamond?
Thank you!

Attachments:
7.png
7.png [ 1.87 MiB | Viewed 1428 times ]

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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