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  • Basaltic Magma & Rock Color: Understanding Density and Composition
    This statement is false. Here's why:

    * Basaltic magma is typically dark in color due to its high iron and magnesium content.

    * Light-colored rocks with lower densities are more commonly formed from felsic magma, which is richer in silica, sodium, and potassium.

    Here's a breakdown:

    * Basaltic magma (mafic) forms dark-colored rocks like basalt and gabbro.

    * Felsic magma forms light-colored rocks like granite and rhyolite.

    Density:

    * Basaltic magma is denser than felsic magma due to its higher content of heavier elements.

    * Felsic magma is less dense because it contains more lighter elements like silicon and oxygen.

    Therefore, the statement is incorrect. Light-colored rocks with lower densities are more likely to form from felsic magma, not basaltic magma.

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