Marble is another example of a metamorphic rock. It is formed from limestone. Metamorphic rocks sometimes contain fossils if they were formed from a sedimentary rock, but the fossils are usually squashed out of shape. Metamorphic rocks can be formed from any other type of rock-sedimentary or igneous. Remember these two examples of common metamorhpic rocks and where they come from: slate is formed from shale. marble is formed from limestone. 1  Page. 2  1. 3  2. 4  3. 5  4. 6  5.