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Home Coffee Corner General Geology & Rock Identification

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What is this rock? 
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subby613

Joined: Mon Jun 25, 2012 9:26 pm
Posts: 1
Post What is this rock?
I went to Arizona and found this rock at the Wave Rock site. Could someone tell me what it is?


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Mon Jun 25, 2012 9:28 pm
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O_Stevens

Joined: Wed Jun 09, 2010 9:25 pm
Posts: 43
Post Re: What is this rock?
subby613,

Welcome to the forums. Difficult to say what kind of rock this is. I would either go for a extrusive lava (igneous) or for iron concretions in a sandstone (sedimentary with diagenetic overprint).

Are there loose sand (quartz) grains to be seen. Does it scratch into metal? If so, it's probably a sandstone.
Mon Jun 25, 2012 10:03 pm
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Patrick898

Joined: Wed Mar 27, 2013 12:18 pm
Posts: 10
Post Re: What is this rock?
A rock is formed naturally solid and the combination of two or more that two minerals. For instance, the granite is the aggregate of quartz, feldspar and biotite minerals. I think It is like sedimentary type of rock.

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Road Salt

Tue Apr 02, 2013 6:18 am
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