metamorphic rocks definition of metamorphic rocks: A rock is a hard stone, of great solidity, which is composed of one or more minerals. Metamorphic, on the other hand, is what was subjected to a process of metamorphism A rock, when these conditions are modified, loses its thermodynamic equilibrium. In this way, it will seek to take advantage of the energy to carry out an evolution that allows it to recover its equilibrium in the new conditions. The rock resulting from this process will receive the qualification of metamorphic rock. Below are some of the main metamorphic rocks: Metamorphic rock * Espilita: belongs to the basaltic (volcanic igneous rocks with a rich content of iron and magnesium silicates, and with little silica), specifically those altered by fluids at high temperatures. It usually has a green or gray color and has no visible crystals, although thi...
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