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One more of....what is this?
  
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Steinen




Joined: 18 Sep 2017
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Location: Bergen

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PostPosted: Sep 19, 2017 05:56    Post subject: One more of....what is this?  

I found this in a small cave...I`m not familiar with minerals, but I am often walking in the mountains here and never seen something similar that big before...so I got curious.
What is this?



stein.jpg
 Description:
Bergen
100cm
 Viewed:  610 Time(s)

stein.jpg


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Josele




Joined: 10 Apr 2012
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Location: Tarifa, Cádiz


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PostPosted: Sep 19, 2017 11:10    Post subject: Re: One more of....what is this?  

Is not a mineral but a rock.
Hard to say which kind of rock just seeing this photo but for the whitish color and eroded forms could be a marble.
You can check with a drop of hydrochloric acid, if there is effervescence will confirm marble. If there is not effervescence then try to estimate the hardness trying to scratch a bottle glass.
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kushmeja




Joined: 28 Jul 2014
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PostPosted: Sep 19, 2017 11:22    Post subject: Re: One more of....what is this?  

Given the layered appearance, it looks like travertine / flowstone, which is essentially limestone.
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Volkmar Stingl




Joined: 23 Sep 2012
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PostPosted: Sep 19, 2017 13:18    Post subject: Re: One more of....what is this?  

Marble.
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