Limestone: it can form organically from the accumulation of shell, coral,and fecal debris. It can also form chemically from the precipitation of calcium carbonate from lake or ocean water.
Breccia: Composed of large fragments and the spaces between the fragments are filled with smaller pieces and mineral cement
Rock Salt: forms from the evaporation of ocean or saline lake waters.
Sandstone: forms from sand size weathering debris in environments where large amounts of sand can accumulate include beaches, deserts, flood plains and deltas.
