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  1. #16
    us
    Oct 2011
    5,176
    3699 times
    Beach and Shallow Water Hunting
    slag

  2. #17

    Aug 2014
    California
    De Havilland Canada DHC-7-102 Dash 7 - Fugro
    1,005
    2391 times
    All Types Of Treasure Hunting
    Slag vs. Rock vs. Clinker
    How about all three ?


    I'm leaning with old digger, ... natural rock ... and I'm with others ... slag ... and gotta go with coal clinkers, also.

    When asked how might a sedimentary rock become a metamorphic rock, this was his answer:



    Steve Dutch, Retired geoscience professor; 36 years

    Melting it. As a general rule, by the time it melts, it will technically have become a metamorphic rock.

    However, this is very common in Wyoming and North Dakota

    The black stuff is slag, formed by melting sedimentary rocks as coal seams burned underground. The pink stuff is baked shale, basically clay cooked into brick, but naturally. So technically itís metamorphic.



    Burning underground coal seams leaving slag and "clinkers".

    Click image for larger version. 

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    I'm beginning to realize I've gone through life without knowing what anything is ...

 

 
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