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Agate Dodecahedron?

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ahanninger's likes3 of 23Scandinavian? American? silver brooch.Sam Elsbi Borje 1954 Stockholm
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    Posted 5 years ago

    ho2cultcha
    (4359 items)

    i found this nice little stone dodecadron today at a junk shop. i love the colors and it's just a nice rock! i can use it as a stand for something too. very 1970s, i think.

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    Comments

    1. martika martika, 5 years ago
      I had a small pyramid from this stone. I don't think it's an agate, would rather say it's a marble, but I might be mistaken. Marble is much easier to scratch, than agate, because it's much softer.
      Carvings from different kind of marble are often sold as agate or onyx, wrongly.
    2. TallCakes TallCakes, 5 years ago
      this tetradecagon is advertised as banded onyx:
      http://images.addoway.com.s3.amazonaws.com/items/15685/3296782/15685_3_847842.jpg
    3. ho2cultcha ho2cultcha, 5 years ago
      thanks martika, TallCakes, and olebodie. i knew it wasn't agate, it was late and my brain was 3/4 sleeping!
    4. ho2cultcha ho2cultcha, 5 years ago
      tetradecagon
    5. ho2cultcha ho2cultcha, 5 years ago
      yes, this has 14 sides.
    6. kyratango kyratango, 5 years ago
      Banded jasper imho :-)
      http://agetrail.com/unt/6999-banded_jasper_rough_8___11_lbs_lapidary_cab_slab_trim_saw_rough_rock_135.html
    7. jeneric jeneric, 5 years ago
      I have one...mine is onyx

      http://www.collectorsweekly.com/stories/202313-green-onyx-paper-weight
    8. martika martika, 5 years ago
      I'm sure this is some kind of marble. Calling these onyx is so widespread and inaccurate - often these are marketed as onyx, wrongly. The real onyx is a form of microcrystalline quartz , like agate, jasper or any kind of chalcedony. Their hardness on the Mohs scale is around 7. Your stone is much softer ( I can see some obvious scratches) and not glossy compared to chalcedony type rocks when polished.
      https://en.wikipedia.org/wiki/Onyx

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