Sample of chalk, a sedimentary rock formed of calcite, a form of calcium carbonate. Chalk is formed by the gradual deposition of the shells of marine organisms over millennia.

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    WebID:

    C01786152

    Clip Type:

    RM

    Super High Res Size:

    1920X1080

    Duration:

    00:00:33.000

    Format:

    QuickTime

    Bit Rate:

    25 fps

    Available:

    download

    Comp:

    200X112 (0.00 M)

    Model Release:

    NO

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    No