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  1. #1
    ca
    Oct 2011
    346
    318 times
    All Types Of Treasure Hunting

    Volcanic Rock Of Some Sort

    Oops...Posted this in the wrong thread...Posted again in the Rock section...
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    Last edited by Cariboo5; May 11, 2012 at 10:42 PM. Reason: posted in wrong thread

  2. #2
    Charter Member
    us
    Dennis

    Jan 2012
    Montana
    White's MXT
    4,424
    2713 times
    All Types Of Treasure Hunting
    Banner Finds (1)
    Volcanic rock or eroded limestone. Try and put a drop or two of muritac acid on it and see if it bubbles up. If it does then it may be limestone. I don't think volcanic pumice will react to the acid. ( Be sure to wash the rock and anything else off good with water when you are done.)

 

 

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