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What kind of mineral is it ?
  
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Carpathian gems




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PostPosted: Jun 23, 2021 08:14    Post subject: What kind of mineral is it ?  

I found this stone on the banks of the Cheremosh River (Ukraine, Carpathians) several years ago. The stone is heavier than ordinary sandstone. The stone is not scratched by glass, even a triangular file on metal does not scratch it, and upon impact emits a quartz smell.
Weighing about 3.5 kg (I do not have exact scales yet), it is partially illuminated by a flashlight, inside it is dark brown (almost black) with white veins. glass luster.



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Vyzhnytsia, Ukrania
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Vyzhnytsia, Ukrania
18cm x 14cm x 9cm
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B.




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PostPosted: Jun 23, 2021 08:54    Post subject: Re: What kind of mineral is it ?  

This exact same specimen has been posted for identification on the MinDat website.

To you and all responders on this site, please see the responses there. Bob
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Carpathian gems




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PostPosted: Jun 23, 2021 09:08    Post subject: Re: What kind of mineral is it ?  

There are my photos. In parallel, I asked a question on different forums, because on reddit I was told that it was something with arsenic, and on the MinDat that it was flint. I would like to hear confirmation of any version.
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alfredo
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PostPosted: Jun 23, 2021 10:10    Post subject: Re: What kind of mineral is it ?  

Reddit is obviously not the right venue to ask for mineral identifications. ;))

This stone is obviously some type of chert or jasper. No reason to think there is any arsenic in it,
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Carpathian gems




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PostPosted: Jun 23, 2021 10:18    Post subject: Re: What kind of mineral is it ?  

Thank you!
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