Sedimentary rocks when altered by heat and pressure because metamorphic rock. But please read the rock cycle you will see the different stages because Igneous can also become Metamorphic with intense pressure and heat.
Metamorphic rock.
metamorphic rock
Rock can be changed into metamorphic rock by heat and pressure.
Metamorphic rock
A metamorphic rock.
Metamorphic rock
Metamorphic, changed by pressure and heat
metamorphic rock
metamorphic rock
A metamorphic rock.
Heat and Pressure.
Rock can be changed into metamorphic rock by heat and pressure.
Metamorphic rock
A metamorphic rock is a rock that got changed by heat & pressure
metamorphic rock
A metamorphic rock.
A metamorphic rock.
Metamorphic rock