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1595 Views 4 Replies Last post: Dec 14, 2013 8:17 AM by Dan RSS
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Dec 11, 2013 5:23 PM

plant fossil?

I think I found nice plant fossil, I have few similar examples at home, but this one is special because its very colourful

what kind of tree is it.

Thanks a lot! (especially you Mike)



  • Currently Being Moderated
    Dec 12, 2013 9:37 PM (in response to 1bear)
    Re: plant fossil?

    I see what you mean...


    Actually, it is a metamorphic rock.

    It is a slightly schistose garnet mica gneiss.

    The purplish lumps are the garnet; the silvery flecks are the mica. The white mineral is probably quartz and/or feldspar. I'm not sure about the pale orange/pink mineral; it could also be feldspar, but it could be something else.


    It would be nice if you could cut and polish your specimen. You would see its lovely pattern better, and you might be able to see other features such as crystal facets on some of the larger minerals. I know it it not easy to do such cutting and polishing; wish I could help. All I can suggest is wetting it under a tap, which will bring its colours to life. If you like the effect and wanted to make it more permanent, you could try varnishing it (having completely washed-off any loose particles first, then allowed it to dry). Practice on a rubbish pebble first.


    You're very welcome, 1bear,


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      • Currently Being Moderated
        Dec 12, 2013 9:36 PM (in response to 1bear)
        Re: plant fossil?

        They have a similar spottiness, I guess.

        The thing to do would be to saw through the specimens and see what happens inside. With the plant, the spots would be only or mainly on the outside, with the garnetiferous rock, they would be throughout.



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