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 Post subject: A mysterious gem pictures! Need experts help
PostPosted: Wed Nov 09, 2016 12:51 am 
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Hello guys
How are you all? I'm Ahmed and I am an Egyptian Geology researcher. A friend showed me a wonderful brown sphere with sun like color when exposed to the light. pics are on this link https://www.researchgate.net/post/pictu ... emologists
If any one of you saw like it before please tell the name of it. Or you can even give me your guess
Image

Thx experts


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 Post subject: Re: A mysterious gem pictures! Need experts help
PostPosted: Thu Nov 10, 2016 3:36 am 
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Location: North Carolina
I responded over on researchgate, but it looks to have a conchoidal fracture. My guess is that it's a marble that has been outside for a while.

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 Post subject: Re: A mysterious gem pictures! Need experts help
PostPosted: Mon Dec 12, 2016 5:11 pm 
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There are a dozen things that it could be. Does your research dept have a Raman spectrometer? Also some basic tests could start eliminating what it isn't.


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