Dredged this up! Any Ideas
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  1. #1
    jog
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    jog

    Nov 2008
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    Dredged this up! Any Ideas

    Found this in my pan after dredging. I was in a creek in Northwest Oregon. Have looked in my Gem book but can't find anything like this.
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    Those Who Say It Can't Be Done Shouldn't Interupt Those That Are Doing It.

  2. #2
    se
    Sep 2006
    Sweden
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    Re: Dredged this up! Any Ideas

    Would you mind taking pics from the side to?

    And test the hardness.
    Geologists are gneiss, tuff, and a little wacke.

  3. #3
    jog
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    Re: Dredged this up! Any Ideas

    Thanks for looking!
    Does this help?
    Also can't check the hardness because I pulled a dumb a#% move and broke it ! I think it was already fractured.
    I had it checked today and was told possibly an odd shaped Garnet. Guess I will have to go try find another.
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    Those Who Say It Can't Be Done Shouldn't Interupt Those That Are Doing It.

  4. #4
    se
    Sep 2006
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    Re: Dredged this up! Any Ideas

    Zircon? Maybe Vesuvianite?

    A quick hardness test will settle that issue.
    Zircon is about as hard as Quartz.
    Vesuvianite is some-what softer then quartz.
    Geologists are gneiss, tuff, and a little wacke.

  5. #5
    se
    Sep 2006
    Sweden
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    Re: Dredged this up! Any Ideas

    Oh, and you can still test the hardness.
    The crystal in general is still in tact isn't it??

    I think you have a tetragonal crystal there, not a cubic like garnets.
    But I am uncertain, some angles from the top might indicate another cystal form.. Or a crystal that hasn't grown as it should..

    Vesuvianite:
    http://www.trinityminerals.com/tucson2006/chv6.jpg

    Zircon:
    http://www.mindat.org/photo-1405.html
    Geologists are gneiss, tuff, and a little wacke.

  6. #6
    jog
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    Nov 2008
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    Re: Dredged this up! Any Ideas

    Thanks for all the help and good info!
    Those Who Say It Can't Be Done Shouldn't Interupt Those That Are Doing It.

  7. #7
    us
    Jan 2008
    Villa Rica georgia
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    Re: Dredged this up! Any Ideas

    it's a garnet, i dredge them up all the time . some are irregular,but quite a few are perfectly [natural] faceted. there are several color varieties,some black like schorl tourmaline,some are red to a purplish hue. they can be quite small to very decent size. and usually hit quite a few when i am in good color.
    no matter where you go,there you are!

  8. #8
    se
    Sep 2006
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    Re: Dredged this up! Any Ideas

    Garnets usally form rhombic dodecahedrons. But come in a bunch of other forms, never seen nor heard about this one though!

    This is probably a bipyramidal tetragonal crystal with cleavage that removed the tips.

    And Garnets come in many colours, indeed. Grossular garnet, for example can also come in green to.
    But please, show me a confirmed garnet with that crystal form!
    (that is not a Pseudomorph)
    Geologists are gneiss, tuff, and a little wacke.

  9. #9
    us
    Jan 2008
    Villa Rica georgia
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    Re: Dredged this up! Any Ideas

    in the gold section he posted this question.i answered garnet ,because i find them regularly where i dredge,this may not be a common form of garnet -but never the less -it is a garnet. he also said he took it to a jeweler.who said it was a garnet.
    no matter where you go,there you are!

  10. #10
    se
    Sep 2006
    Sweden
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    Re: Dredged this up! Any Ideas

    Quote Originally Posted by strickman
    in the gold section he posted this question.i answered garnet ,because i find them regularly where i dredge,this may not be a common form of garnet -but never the less -it is a garnet. he also said he took it to a jeweler.who said it was a garnet.
    Hmm.. Interesting. I think he said, I quote:
    I had it checked today and was told possibly an odd shaped Garnet.
    I am pretty certain this is no Garnet. Mindat, anyone?
    More tests are required to be certain.

    // Eu

    PS. Check on Austrobouncers reply in the prospecting topic.
    Geologists are gneiss, tuff, and a little wacke.

  11. #11
    jog
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    Nov 2008
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    Re: Dredged this up! Any Ideas

    Hey! Am I going to have to put you two in the corner for a time out. No! just kidding
    Today I took the kids and walked up the little creek almost to the head. Found another but was not complete, but is more intact so I can try and get a hardness test on this one. Also have the pics from the first.
    The jeweler that I went to believed it was a Garnet but wasn't positive, just wasn't sure about the shape. He did get a Little bit of light to show through and he said it was a very light red and brown color.
    I will let you know what I find out on the hardness test.
    Those Who Say It Can't Be Done Shouldn't Interupt Those That Are Doing It.

  12. #12
    us
    Jan 2008
    Villa Rica georgia
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    Re: Dredged this up! Any Ideas

    the shape is odd for a garnet, i'll give you that .... but it's still a garnet....................i don't know why , but it does happen.
    no matter where you go,there you are!

  13. #13
    us
    Jan 2008
    Villa Rica georgia
    gold bug pro,garret,whites,tesoro,bounty-hunter,,.....
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    Re: Dredged this up! Any Ideas

    here's a few ,i just gave a bunch away. i'll have more when i go thru more cons. they a common where i go .might not be common everywhere .but plentiful where i go.
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    no matter where you go,there you are!

  14. #14
    jog
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    Nov 2008
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    Re: Dredged this up! Any Ideas

    Strickman..
    Are those worth anything, and what do you do with them?
    Those Who Say It Can't Be Done Shouldn't Interupt Those That Are Doing It.

  15. #15
    se
    Sep 2006
    Sweden
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    Re: Dredged this up! Any Ideas

    Stickman,
    I am quite familiar with Garnets.
    And I have seen and picked out even more from schist.

    Both brown, red and other coloured Garnets.

    The only possibility that I can see if it would be garnet would be a pseudomorph where it replaced a earlier mineral.

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    Oh and here is a lovely little Garnet twin.
    Geologists are gneiss, tuff, and a little wacke.

 

 
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