CIBJO releases Gemmological Special Report: considers process of separating measurable facts from opinion; See Gemological Articles below.
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 Post subject: Identifying Rock
PostPosted: Sun Sep 15, 2019 11:46 pm 
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Can you please help me identifying this stone?


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 Post subject: Re: Identifying Rock
PostPosted: Tue Sep 17, 2019 12:24 pm 
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I have my suspicions.....but I would like more information.
Hardness?
Translucent? Opaque?
Look inside with some magnification. What do you see?


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 Post subject: Re: Identifying Rock
PostPosted: Wed Sep 18, 2019 5:18 am 
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Barbra Voltaire, FGG wrote:
I have my suspicions.....but I would like more information.
Hardness?
Translucent? Opaque?
Look inside with some magnification. What do you see?


All I can tell you that it looks heavy ,please Check this video?
https://youtu.be/HIKVo5_TnLk


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 Post subject: Re: Identifying Rock
PostPosted: Wed Sep 18, 2019 12:14 pm 
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I suspect it is glass slag.


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 Post subject: Re: Identifying Rock
PostPosted: Wed Sep 18, 2019 1:20 pm 
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Barbra Voltaire, FGG wrote:
I suspect it is glass slag.


Thank you barbra, still need confirmation.


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 Post subject: Re: Identifying Rock
PostPosted: Wed Sep 18, 2019 2:39 pm 
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Bring the specimen to someone who can physically test it.
Pictures are not sufficient for positive ID.
Perhaps the geology department in a local college or university.
If you live in the US, your closest Rock & Mineral Club could help.


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 Post subject: Re: Identifying Rock
PostPosted: Thu Sep 19, 2019 4:21 pm 
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That's a weird one. Look for spherical bubbles or voids on the surface. Still, almost looks like it has cleavage and metallic luster, odd.

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 Post subject: Re: Identifying Rock
PostPosted: Thu Sep 19, 2019 8:21 pm 
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Occam's razor.


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 Post subject: Re: Identifying Rock
PostPosted: Thu Sep 19, 2019 8:29 pm 
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I'm not disagreeing, but if it's slag it is atypical slag, maybe silicon or an odder industrial one like that. If local testing is done please share the results.

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 Post subject: Re: Identifying Rock
PostPosted: Sat Oct 12, 2019 6:28 pm 
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the pics are too blurry to see any details, still first things that came to my mind were slag or galena


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 Post subject: Re: Identifying Rock
PostPosted: Thu Oct 17, 2019 5:56 pm 
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At first glance, I was thinking galena myself due to the metallic luster and what appears to be 90 degree cleavage in multiple directions. Interested to hear the results of physical testing.

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