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472 Views 4 Replies Last post: May 15, 2013 6:38 PM by 1bear RSS Branched to a new thread.
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May 10, 2013 12:32 PM

fossil cocoon?

Hello Again

(by the way thanks Mike for help)

 

The same story, I found this item on the beach,

its hard, size 2x50p coins

I would be grateful if you could help me to identify it.

 

Thanks

 

kokon 002.JPGkokon 003.JPG

  • Currently Being Moderated
    May 10, 2013 3:52 PM (in response to 1bear)
    Re: fossil cocoon?

    You're welcome!

     

    On this occasion, however, I'm stumped!

    It looks like it contains filaments/fibres, which can occur in rocks/minerals, but not really like that.

     

    I get the feeling it may be man-made, perhaps waste glass-fibre and resin (from GRP manufacture), but that's just a guess. It might be useful to try a scratch test for hardness.

    http://www.oakton.edu/user/4/billtong/eas100lab/hardness.htm

    I'd also see if it floats or sinks in water, as a rough guide to density. If it floats, it could have come from a long way away; if not, it might have come from a local industry (but could still have come from far away if part of a wrecked cargo).

     

    Mike

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