Sedimentary Sedimentary Sedimentary rocks are rocks and minerals made by the force of tiny almost microscopic rocks, called sediments being forced together sometimes with magma as a guide. These layers are key in gem identification for layers are very common in sedimentary rocks. Sediments carry to different places with wind and water. When the sediments journey is completed over the years it compresses with others and forms new rocks.
Rain also can push sediments to different places.
Here are different kinds of sedimentary rocks. Sandstone Rocks Sandstone rocks are sedimentary rocks made from small grains of the minerals quartz and feldspar. They often form in layers as seen in this picture. They are often used as building stones. Limestone Rocks Limestone rocks are sedimentary rocks that are made from the mineral calcite which came from the beds of evaporated seas and lakes and from sea animal shells.