Different rocks form based on atmospheric processes and places. Scoria rock is an igneous rock that forms from the cooling of the lava from volcanic eruptions.
Igneous rocks like scoria form when the magma or the lava erupted from the volcanic eruptions gets cooled and the bubbles leave the gas-forming holes in the solidified rocks.
Scoria is a dark-colored vesicular rock structure that is found near the earth's surface when the magma gets cooled down.
Therefore, Scoria forms by the cooling of the magma from volcanic eruptions.
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