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Need help with identification
  
  Index -> FOR BEGINNERS: What is it? Where is it from?
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Blackbeard700




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PostPosted: Jul 22, 2019 03:28    Post subject: Need help with identification  

Hi experts.
My son purchased this rock. The salesman said that it was a meteorite. But we are not sure. Can some help us identify it please?

Thanks



20190722_092410.jpg
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Blackbeard700




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PostPosted: Jul 22, 2019 03:32    Post subject: Re: Need help with identification  

Here is another picture


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Blackbeard700




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PostPosted: Jul 22, 2019 03:33    Post subject: Re: Need help with identification  

And one last one.


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Blackbeard700




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PostPosted: Jul 22, 2019 04:35    Post subject: Re: Need help with identification  

Adding more information. He purchased it from Marrakech in morocco. It does not appear to be magnetic... It is pretty hard and heavy.
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Bob Harman




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PostPosted: Jul 22, 2019 04:35    Post subject: Re: Need help with identification  

The example is absolutely NOT a meteorite! The example looks like botryoidal hematite, sometimes called kidney ore. BOB
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Blackbeard700




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PostPosted: Jul 22, 2019 05:44    Post subject: Re: Need help with identification  

Thanks for the info.
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alfredo
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PostPosted: Jul 22, 2019 06:28    Post subject: Re: Need help with identification  

I agree with Bob. Definitely not a meteorite, and probably mammilary hematite. The only other mineral that can look like that is the "wood tin" variety of cassiterite, but that‘s a lot more rare.
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Stefan Koch




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PostPosted: Jul 22, 2019 07:46    Post subject: Re: Need help with identification  

I would go for goethite instead of hematite due to the brown Color.
A simple streak test would help to confirm brown=most likely goethite vs. Red= hematite.
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Bob Carnein




Joined: 22 Aug 2013
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PostPosted: Jul 22, 2019 08:58    Post subject: Re: Need help with identification  

I'm with Stefan--it looks like goethite to me. Try scraping it on the ring on the bottom of a teacup or the back of a porcelain tile. If the mark (streak) is yellowish brown, it's goethite; if reddish brown, it's hematite.
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Kevin Schofield




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PostPosted: Jul 22, 2019 11:40    Post subject: Re: Need help with identification  

Hi Blackbeard,

I agree with the analysis goethite/hemAtite streak test that Bob C suggests. Both minerals are iron oxides, and both occur in Morocco, so your son has, if nothing else, got something for his mineral collection that does indeed come from the country he bought it, so it's a good souvenir ;-)

Kevin

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alfredo
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PostPosted: Jul 23, 2019 03:56    Post subject: Re: Need help with identification  

Right, I should have written goethite rather than hematite, or better yet "iron oxides", because color and streak give good guidance but are not really definitive. More than once I‘ve been pretty sure I had goethite based on streak color, but X-ray showed dominantly hematite.
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