I found a black rock with my metal detector and I have been trying to find out what it is? Any ideas?

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onlyonemeg asked:

I was doing some metal detecting along the shores of Lake Ontario when I was on vacation. The mental detector went crazy beeping on this rock. I have searched several sources and even asked the guy at the metal detector store. Does anyone know what this rock might be?
It is solid, dull black and you can see many flecks of black crystal like bits in it. I unfortuntely can’t get a good picture of it?

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This entry was posted on Saturday, October 17th, 2009 at 3:29 pm and is filed under Earth Sciences & Geology. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.

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15 Responses to “I found a black rock with my metal detector and I have been trying to find out what it is? Any ideas?”

  1. Anonymous Says:
    October 19th, 2009 at 11:22 pm

    Posibly an iron meteorite if lucky :) …or maybe just iron ore. :(

    Take it the local geology dept.

  2. Anonymous Says:
    October 20th, 2009 at 10:14 am

    Black onyx, black diamond… Take it to a gemologist or a jewelry store. God bless****

  3. Anonymous Says:
    October 23rd, 2009 at 9:18 pm

    some sort of iron ore. maybe a metor. post a pic some where hehe

  4. Anonymous Says:
    October 26th, 2009 at 4:57 am

    If it is smooth and definitely a “rock” it probably just has a high iron content.

  5. Anonymous Says:
    October 27th, 2009 at 12:42 am

    most likley just basalt with some iron in it.

  6. Anonymous Says:
    October 27th, 2009 at 3:04 pm

    of the rock is a shiny black it could be a natural earth magnet rock

  7. Anonymous Says:
    October 30th, 2009 at 5:42 pm

    A picture of it might help a bit.

    The Ol’ Sasquatch Ü

  8. Anonymous Says:
    October 31st, 2009 at 5:19 pm

    it depends on the kind of soil u have in ur area u should know that firstand if there is any relations to ur stone, also try to put a magnet on it if it get attached to it it might me a metal but prolly it’s from the space idk…

  9. Anonymous Says:
    November 3rd, 2009 at 7:14 pm

    Go to a gemologyst, I am sure they can help you.

    Would you please BE A GEM and answer my questions and rate it if you think it is interesting or not?

    -;_ylv=3?qid=20071014160107AAdZgzj
    -;_ylv=3?qid=20071014202134AAQA1CG

  10. Anonymous Says:
    November 4th, 2009 at 12:26 am

    I don’t think metal detectors usually pick up rocks unless there is metal in it. Meteorites can be picked up with a metal detector it might be worth looking online if that is the rock you found.

  11. Anonymous Says:
    November 4th, 2009 at 7:41 pm

    If it’s shiny and lustrous it could be obsidian.

  12. Anonymous Says:
    November 7th, 2009 at 8:25 pm

    If it was on the lakes it is definitely an iron rock of some sort

  13. Anonymous Says:
    November 9th, 2009 at 6:07 am

    It could be some kind of iron ore?

  14. Anonymous Says:
    November 12th, 2009 at 3:05 am

    …go to
    see if that helps ya any.

  15. Anonymous Says:
    November 13th, 2009 at 12:17 pm

    Sounds like magnetite, or possibly a nickel ore.