Metamorphic rock is formed when existing rock is transformed under high heat and pressure, which generally destroys any fossils that were in the rock before it was metamorphosed. For example, marble ...

The limestone gets its color from the red siltstones ... the layer was transformed into schist (a hard metamorphic rock) through heat and pressure.

The diagram shows how metamorphic rocks may form from rocks heated by nearby magma. Marble is formed from limestone (a sedimentary rock) and contains tiny interlocking grains. This makes it very ...

For example, marble that you might see in kitchen counters or statues came from limestone that was transformed under intense ...

Metamorphic rocks are also formed because of change in ... the mill stone was traced back to a quarry in the Mournes. The limestone in the Marble Arch Caves formed around 330 million years ago ...