Forums General Discussion Unknown rock

1 reply, 2 voices Last updated by Alan Balmer 5 years, 8 months ago
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  • #3877

    mark
    Participant
    @Mark

    What this rock is I know it is not gem material I’m just curious it’s very porous gray ?

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    #3880

    Alan Balmer
    Keymaster
    @alanbalmer

    Looks like pumice.
    https://en.wikipedia.org/wiki/Pumice

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