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Thread: Help with identification please.

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  1. #1
    us
    One eyed flying purple people eater.

    Sep 2013
    Somewhere directly above the center of the Earth.
    3,145
    2658 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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    SD51 likes this.
    "There’s nothing stronger than the heart of a volunteer”
    Lt. Col. Jimmy Doolittle

    "Of all the things I've lost, I miss my mind the most."
    Mark Twain

    “An armed society is a polite society. Manners are good when one may have to back up his acts with his life.”
    Robert A. Heinlein

    2019 Update..
    God is Great, Education is Important, but Beer is more Importanter.

  2. #2
    us
    May 2015
    West Lower Peninsula, MI
    419
    443 times
    Prospecting
    yep, chalcopyrite. Nice one
    BC1969, SD51 and Clay Diggins like this.

  3. #3
    us
    May 2015
    West Lower Peninsula, MI
    419
    443 times
    Prospecting
    Or Bornite. Streak test would differentiate

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

  4. #4
    us
    One eyed flying purple people eater.

    Sep 2013
    Somewhere directly above the center of the Earth.
    3,145
    2658 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:	1679984
    SD51 likes this.
    "There’s nothing stronger than the heart of a volunteer”
    Lt. Col. Jimmy Doolittle

    "Of all the things I've lost, I miss my mind the most."
    Mark Twain

    “An armed society is a polite society. Manners are good when one may have to back up his acts with his life.”
    Robert A. Heinlein

    2019 Update..
    God is Great, Education is Important, but Beer is more Importanter.

  5. #5
    us
    One eyed flying purple people eater.

    Sep 2013
    Somewhere directly above the center of the Earth.
    3,145
    2658 times
    That bright purple/blue specimen streaks black.
    SD51 likes this.
    "There’s nothing stronger than the heart of a volunteer”
    Lt. Col. Jimmy Doolittle

    "Of all the things I've lost, I miss my mind the most."
    Mark Twain

    “An armed society is a polite society. Manners are good when one may have to back up his acts with his life.”
    Robert A. Heinlein

    2019 Update..
    God is Great, Education is Important, but Beer is more Importanter.

  6. #6
    se
    Sep 2006
    Sweden
    White's V3, Minelab Explorer II & XP Deus.
    6,446
    2058 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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