Rocks That Solidify and Crystallize from a Molten State Are

Short Answer

Rocks that solidify and crystallize from a molten state are called ________. They form from ________, which is molten rock beneath the surface. Magma is fluid, highly gaseous, and under tremendous pressure. It is either ________ into preexisting crustal rocks, known as country rock, or ________ onto the surface as ________.