Black shiny rock unknown help us!?!?!?
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Thread: Black shiny rock unknown help us!?!?!?

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  1. #1

    Feb 2016
    2
    All Types Of Treasure Hunting

    Black shiny rock unknown help us!?!?!?

    Hello all, we need some help. My 8yr old son was digging in the back yard a few minutes ago and found this black rock. He hit it with his shovel and it broke apart. The pieces are very sharp. I was thinking obsidian and then my imagination started going with his about meteorite tektites....

    Can anyone help determine what it really is? We are in NJ USA and found it a bit 4 inches in the soil. It's not quite as heavy as we would think for its size.

    Jim & Carter
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  2. #2
    hr
    Feb 2016
    8
    5 times
    All Types Of Treasure Hunting
    hematite or glass from a smelter

  3. #3
    us
    dirt dog

    Mar 2014
    upstate ny
    whites dfx,xlt,idx,prism,tm 808,fisher gold bug,1280x,xp deuse
    182
    161 times
    All Types Of Treasure Hunting
    ditto

  4. #4
    us
    steve andermatt

    Apr 2013
    California
    AT GOLD/Garrett /Garrett pro pointer/ 5x8 double d coil and sniper coil/Lesche digger
    5,251
    5123 times
    All Types Of Treasure Hunting
    Looks like melted glass not obsidian.All the obsidian I have has sharp flake type of edges.Also that looks bubbled like glass would do.
    back of the boat

  5. #5
    us
    Dec 2009
    in your back yard
    excal 2 Fisher F75 SE
    1,826
    586 times
    All Types Of Treasure Hunting
    Well being that your located in NJ. I would say it is anthracite coal, not obsidian or glass. Anthracite is found in 2 types hard and soft, yours being the hard variety. It fractures just like glass with sharp edges . HH
    And welcome aboard Tnet.
    BK
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    Last edited by Broken knee; Feb 28, 2016 at 05:57 PM.

  6. #6
    Educator

    Feb 2006
    Occupied CSA (Richmond VA)
    White's 6000, Nautilus DMC-1, Minelab
    5,936
    9841 times
    Relic Hunting
    The thin-est edges of the broken pieces seem to show not even a slight amount of transparency. So, I've got to agree with Broken Knee that it is hard Anthracite coal. Obsidian and melted "black glass" will show at least a slight amount of transparency on a very-thin edge. Jim & Carter, please hold some pieces next to a strong light, to see if the edges are even slightly transparent, and let us know.

    JimnCarter, I see that your ID-request post is your very first post here. Welcome to TreasureNet and the What-Is-It? forum, the best place on the internet to get unknown objects CORRECTLY identified.
    Last edited by TheCannonballGuy; Feb 28, 2016 at 06:48 PM. Reason: Forgot to include the Welcome note.
    "Let The Christ be a light to you in dark places, when all other lights go out."

  7. #7

    Feb 2016
    2
    All Types Of Treasure Hunting
    Thanks so much everyone. Carter and I followed your recommendations to find that no light shines through, not even on the thin edges. If there are any other tests you recommend, please let us know. Thanks for welcoming us to tnet. We are looking forward to many more finds and sharing with you all.

    Jim & Carter

  8. #8
    us
    Dec 2009
    in your back yard
    excal 2 Fisher F75 SE
    1,826
    586 times
    All Types Of Treasure Hunting
    You can take one of those broken parts and put a torch to it and it should burn? HH
    BK

  9. #9

    Apr 2005
    Massachusetts
    302
    138 times
    All Types Of Treasure Hunting
    looks like coal to me

 

 

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