The sun
Any extreme heat. Lava, fire, kiln, blowtorch (if the rock is soft enough.)
If a metamorphic rock were to reach the mantle and melt, it would become magma. If that magma were then to recrystallize it would be an igneous rock.
No. If a rock melts and then re-solidifies, then by definition the resulting rock is igneous.
By a process of melting and re-solidification of the melt produced..
Metamorphic rock can melt under the surface of the earth, and the harden into an Igneous rock. As an Igneous, it could crystalize, or break down into sediment where it can become either Igneous or Sedimentary.
I would guess you could donate it to a factory where they can melt them and make other stuff out of it
Weathering or melt.
Molten Rock when the rock is cooled the rock could form a different shape
The sedimentary rocks would have to melt and cool again to make an igneous rock.
A sedimentary rock could undergo heat and pressure to become a metamorphic rock, melt into an igneous rock, or get weathered, eroded and deposited into another sedimentary rock
If a metamorphic rock were to reach the mantle and melt, it would become magma. If that magma were then to recrystallize it would be an igneous rock.
No rock is created when minerals melt. Igneous rock is formed when molten rock solidifies.
Underground molten rock, called magma, does melt some of the surrounding rock.
IF the sedimentary rock is taken down deep into the earth in a subduction zone, it could melt and form lave.
It could be weathered forming sediments, or it could be subducted at a plate margin, melt and form magma.
Melt and recrystallize
Melt and recrystallize
It gets weathered into sediment or it could be subjected to heat and pressure and become a metamorphic rock, or it could melt into magma and cool into an igneous rock.