Do nothing. It is not necessary to do anything if you want a rock to remain the same.
No, marble is a metamorphic rock. You can not make cars out of marble.
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The sediments made of the metamorphic rock would turn into sedimentary rock.
A metamorphic rock is formed by the elements, minor heat, and compression. When the metamorphic rock is melted by magma, this would indicate that the metamorphic rock is under the surface of the earth. If it rises and cools again you will have an extrusive igneous rock. In a lot of cases, this is metamorphic rock on the surface under the influence of lava. This would change the composition and it would not longer be metamorphic, but rather igneous.
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.
metamorphic rock metamorphic rock, or metamorphism
It breaks down and the cycle starts again
Metamorphic rocks have been changed by heat or pressure. This can be a change in size, shape, or arrangement of minerals.
Metamorphic. Obsidian.
Igneous rock.
You would look for a metamorphic rock.
The metamorphic rock would be older, because in the sedimentary rock's formation that is caused by collected sediment taking years to harden and turning into a rock, the metamorphic rock would have already been considered metamorphic when traces of it came into the sedimentary.