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584 Views 3 Replies Last post: Oct 27, 2016 8:16 AM by Dr T RSS
Currently Being Moderated

Jul 3, 2014 1:07 PM

Need help identifying a rock

Hi , after having this rock for over 40 years now i suspect its time to get advice on what exactly it is !

It has been in the family since the early 70's now i believe it was found around the High Peak/Derbyshire area

Ive tried to make the images as detailed/clear as possible

 

 

ANY help would be great !

 

Please see attached images:

 

rock1.jpgrock2.jpgrock3.jpgrock4.jpgrock6.jpgrock5.jpg

  • Currently Being Moderated
    Oct 27, 2016 4:55 AM (in response to aps67)
    Re: Need help identifying a rock

    Ok.

    It looks extraterestial.

    It has all the markings of meteorite.

    Try putting hydrogen peroxide on it...

    If it bubbles it means it contains platinum.

    ( Platinum being a catalyst and the only rock to react to peroxide.

    If you have an accurate scale take the exact dry weight down.

    Then put enough water in a container that will completely immerse the rock suspended by a string without touching the sides or back of container.

    Now zero out the scale with just the water in the container.

    Suspend the rock by string and completely immerse without touching the sides or back or bottom of the container.

    Read the scale.

    Divide first dry weight of stone by the weight just read.

    This will give you the specific gravity of the stone.

    Now look online and see what matches your result.

    Example: 3.2-3.6 would likely be lonsdaleite. (Impact Diamond)..

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  • Currently Being Moderated
    Oct 27, 2016 4:59 AM (in response to aps67)
    Re: Need help identifying a rock

    Oh, I must add,...

    Use purified water as that the rock will weigh different if you have minerals or chlorine in the water.

    ( Very important).

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  • Currently Being Moderated
    Oct 27, 2016 8:16 AM (in response to aps67)
    Re: Need help identifying a rock

    Before assuming it is a meteorite (the odds are very much against that but never say no), please work through these three websites and let us know what you conclude:-

     

    http://meteorite-identification.com/streak.html

     

    http://www.aerolite.org/found-a-meteorite.htm

     

    http://geology.com/meteorites/meteorite-identification.shtml

     

    Thanks

    (It could be a by-product of the Peak District former mining industry)

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