Auriferous Sand ? Please help with Microscopic ID
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Thread: Auriferous Sand ? Please help with Microscopic ID

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  1. #1

    Sep 2013
    18
    4 times

    Auriferous Sand ? Please help with Microscopic ID

    Dear Fellow Treasureneters,

    Please assist me in identifying the following.Its a sample of blacksand under microscope from a auriferous area.

    Thanks.
    Click image for larger version. 

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  2. #2

    Mar 2016
    1,918
    2983 times
    All Types Of Treasure Hunting
    Yup definitely gold.

    Seriously though..no way of telling from photos.
    Yellow colored...doesn't mean much.
    If it WAS gold, would it be recoverable at a profit? Perhaps some assay testing would tell you that.
    Last edited by IMAUDIGGER; Aug 03, 2019 at 12:06 AM.
    DizzyDigger and BillA like this.
    All treasures found with permission on private property or on active mining claims.

  3. #3

    Sep 2013
    18
    4 times
    Okay. Thanks.

  4. #4

    Sep 2013
    18
    4 times
    Quote Originally Posted by IMAUDIGGER View Post
    Yup definitely gold.

    Seriously though..no way of telling from photos.
    Yellow colored...doesn't mean much.
    If it WAS gold, would it be recoverable at a profit? Perhaps some assay testing would tell you that.
    It was in blacksand.Nothing is visible to the eye.So it could be micron gold.Now sure anyone has profitably mined it
    et1955 likes this.

  5. #5

    Mar 2016
    1,918
    2983 times
    All Types Of Treasure Hunting
    I've heard of people selling black sand concentrates to companies that extract the precious metals.
    So on a large industrial scale...

    There are old mining ponds that are full of large quantities of black sand concentrates.
    Someday they might be worth looking into.

    Gold is not really that rare of a metal. Gold in accessible concentrations to mine profitably is what's uncommon.
    Last edited by IMAUDIGGER; Aug 04, 2019 at 11:04 PM.
    All treasures found with permission on private property or on active mining claims.

  6. #6
    Charter Member
    us
    Ed Tracy

    Jan 2015
    Shoreline,wa
    Equinox 800
    533
    879 times
    Prospecting
    Quote Originally Posted by blacksand View Post
    It was in blacksand.Nothing is visible to the eye.So it could be micron gold.Now sure anyone has profitably mined it
    Not knowing where you are mining it is hard to give you a proper analysis, if you are in a gold rich area your mining skills are poor but if you are in a gold poor area you are doing great. At least, good job on finding a piece of gold. Suggest you find a place to mine where you can see the gold in your pan , not threw a microscope. Good Luck
    Clay Diggins likes this.

  7. #7
    us
    Feb 2015
    Moses Lake WA & Provo UT
    414
    579 times
    Prospecting
    I am inclined to say it's not gold. My reason is that I recently got a look at a pan of concentrates under a microscope which was separated down so that it was almost all zircon crystals and some gold, all very fine and when you looked at the pieces of gold, they were so clean and golden, there was no mistaking them. I think it is a general rule that the finer gold is, the purer it tends to be. So I imagine whenever you are looking at microscopic placer gold, you will typically see it very pure and not attached to anything else.

  8. #8
    Charter Member
    us
    Nov 2010
    The Great Southwest
    3,530
    10246 times
    Prospecting
    I don't see any gold in your pictures. I've scoped a lot of fine placer gold deposits and as Owen says - if it's gold you will have no doubt.

    Heavy Pans

  9. #9

    Sep 2013
    18
    4 times
    Quote Originally Posted by et1955 View Post
    Not knowing where you are mining it is hard to give you a proper analysis, if you are in a gold rich area your mining skills are poor but if you are in a gold poor area you are doing great. At least, good job on finding a piece of gold. Suggest you find a place to mine where you can see the gold in your pan , not threw a microscope. Good Luck
    Great.Thanks for the insight.

  10. #10

    Sep 2013
    18
    4 times
    Quote Originally Posted by OwenT View Post
    I am inclined to say it's not gold. My reason is that I recently got a look at a pan of concentrates under a microscope which was separated down so that it was almost all zircon crystals and some gold, all very fine and when you looked at the pieces of gold, they were so clean and golden, there was no mistaking them. I think it is a general rule that the finer gold is, the purer it tends to be. So I imagine whenever you are looking at microscopic placer gold, you will typically see it very pure and not attached to anything else.
    Thank you for the comment.

 

 

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