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Member needs help identifying stone

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This topic contains 11 replies, has 7 voices, and was last updated by Profile photo of swarnava swarnava 1 year ago.

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  • #199189
    Profile photo of editor
    editor
    Keymaster

    Found this stone at a site that I have been investigating as an impact site. The data that I have collected suggest that it could be black beryl. I had an edx scan done on the rock but was told afterwards that it could not detect something as light as beryllium but it did detect Si, Al, O and a trace amount of Fe, which are known to make up black beryl, but I’m aware that doesn’t mean it is black beryl.

    Any assistance is appreciated from the IGS community.

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    #199239
    Profile photo of sydp
    sydp
    Participant

    Not sure forgive my ignorance, but I was always of the opinion that silica, aluminium Oxide with some Fe thrown in was corundum.
    It might be that if you have access to equipment to undertake a specific gravity test this may point you in the right direction.

    good luck

    #199287
    Profile photo of melissa
    melissa
    Participant

    This is a family heirloom. Need help and opinion on this chicken blood stone

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    #199300
    Profile photo of stonespecialists
    stonespecialists
    Participant

    The Raman spectrum reading indicates that there is too much silicon present to be corundum. Otherwise, I would have agreed with syd-prickett about the fact that silicon impurities MIGHT be found in corundum. Iron, Alumnium and Oxygen are common to normally bluish colored sapphires from the corundum family.

    #199301
    Profile photo of swarnava
    swarnava
    Participant

    This stone was gifted to me by my grandad around 80s any idea to which class of ruby this belongs and it rarity. Around 10ct. Is it worth getting certified?

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    #199303
    Profile photo of swarnava
    swarnava
    Participant

    Here is the front pic just in case

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    #199352
    Profile photo of tammydlee2087
    tammydlee2087
    Participant

    Anyone know what this gem is? Please help me

    #199430
    Profile photo of khuned
    khuned
    Participant
    #199432
    Profile photo of khuned
    khuned
    Participant

    What background info do you have to support that it is a Ruby ? Where did your Granddad acquire the stone ? Just looking at the photos you provided, one could say that this stone could possibly be in the Garnet family, or even a variety of Tourmaline known as Rubillite. You should have it tested to confirm what it is first, then you can better judge its value or rarity.
    Good Luck !

    Response to Swarnava post 28 Aug 2015

    #199434
    Profile photo of swarnava
    swarnava
    Participant

    Thank you for your response. Agree while I was not receiving any response I have given it for certification to our government research institute. Unfortunately no info received from him as I was a kid when he gave this to me saying it is a ruby and he is no more hence I have no other way other than certification to identify what it is

    #199461
    Profile photo of khuned
    khuned
    Participant

    Please let us know when you receive the certification report, it may help others with same questions about their gems. Once you know what you have, you can research its value. At 10cts large stones like that command a higher value, whether its a Ruby or something else…… Good luck 🙂

    #199474
    Profile photo of swarnava
    swarnava
    Participant

    Sure will do. Thanks for all your help

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