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256 Views 1 Reply Last post: May 16, 2014 7:53 AM by MikeHardman RSS
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May 16, 2014 1:13 AM

What rock/fossil is this?

I found this washed up on the Atlantic ocean. Can anybody tell me what this might be?

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    May 16, 2014 7:53 AM (in response to Kristiana216)
    Re: What rock/fossil is this?

    Looks to be a sedimentary concretion of some sort, with various modern encrustations.

    As with many concretions, it may have a fossil within.

    It would be useful to know its density - might give a clue as to rock type (or could suggest it is an indurated nut, perhaps).

    Can't say much more without thin-sectioning and examination under microscope.

     

    Mike

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