Changes to the three types of rocks from one rock to another, or may change back to the original type of the other stones. That is when magma cooling down will crystallize a stone akni. When rocks are weathered through the ruins with akni and corrosion sediments there are tides became. Wind waves in the sea, glaciers or blows to accumulate and cause erections become stone. Due to compression or tension has the solution to coordinate a sedimentary silt. When the stone floors received a high pressure compressor and heat the stone praetphapklai is the variable.