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  1. #26
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    Mendip's Avatar
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    Both of those rocks look like extremely weathered pieces of granite or similar to me. The flat, black shiny surfaces are probably biotite mica, a clay mineral, which due to the large grain size indicates a slow cooling igneous rock.

    This rock is rounded, as are mountain ranges formed from granite. Mountain ranges comprised of metamorphic and sedimentary rocks tend to be more layered and jagged.

    This from my geology degree over 30 years ago... there are people on here way more knowledgeable. But if this is from a rock scarce area then maybe any piece of hard rock would have been used as a tool, without having the luxury of available flint or the like?

  2. #27
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    ^ if you are so good at geology, why is your pond full of dead fish, your vocation the deep blue sea for months on end and the largest rock formation you've shown your gardener is your penis
    Last edited by Dillinger; 07-04-2020 at 10:14 AM.

  3. #28
    Thailand Expat tomcat's Avatar
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    Quote Originally Posted by Dillinger View Post
    ^ if you are so good at geology, a) why is your pond full of dead fish, b) your vocation the deep blue sea for months on end and c) the largest rock formation you've shown your gardener is your penis
    a) unrelated
    b) there are rocks under the sea
    c) *cough*

  4. #29
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    ^ Thank you tomcat, I had no good answers to a and b.

    I'd prefer to forget all about c.

  5. #30
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    ^ It'll soon blow over

    Sorry, still feel drunk from last night. Back under my rock

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