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Thread: Help with identification please.

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  1. #1
    us
    Sep 2013
    Somewhere directly above the center of the Earth.
    4,663
    7774 times

    Question Help with identification please.

    Okay, I've been collecting these types of rocks for a couple of years now.
    I don't know what they are.
    Maybe chalcopyrite, iron pyrite or??
    These are completely natural, in other words, I haven't treated them.
    I cannot tell you where they are from.. I don't know.
    This rock was brought into this area.
    I'd say where, but knowing how many Michigander's are present in these forums.. NOPE!
    Click image for larger version. 

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ID:	1679971Click image for larger version. 

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ID:	1679972
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ID:	1679973
    IAMZIM and SD51 like this.

  2. #2
    us
    May 2015
    West Lower Peninsula, MI
    458
    515 times
    Prospecting
    yep, chalcopyrite. Nice one
    BC1969, IAMZIM, SD51 and 1 others like this.

  3. #3
    us
    May 2015
    West Lower Peninsula, MI
    458
    515 times
    Prospecting
    Or Bornite. Streak test would differentiate

    Bornite - gray/black
    Chalcopyrite - greenish black
    Clay Diggins, BC1969 and SD51 like this.

  4. #4
    us
    Sep 2013
    Somewhere directly above the center of the Earth.
    4,663
    7774 times
    Here are some more. Same area.
    Note the green staining denotes copper.
    The top pic has copper/silver.
    The three bottom pics are some white metal.
    The bottom one has a vein of metal running through it.
    Click image for larger version. 

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ID:	1679979
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ID:	1679980
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ID:	1679981
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ID:	1679983
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ID:	1679984
    SD51 likes this.

  5. #5
    us
    Sep 2013
    Somewhere directly above the center of the Earth.
    4,663
    7774 times
    That bright purple/blue specimen streaks black.
    SD51 likes this.

  6. #6
    se
    Sep 2006
    Sweden
    White's V3, Minelab Explorer II & XP Deus.
    6,454
    2067 times
    Prospecting
    I'd say its easier to see if a knife can scratch it. Pyrite won't be scratched by a knife.
    SD51 and stdenis_jd like this.
    Geologists are gneiss, tuff, and a little wacke.

 

 

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