I saw the water streaming over the road towards the ditch, and it reminded me of Uncle Tom's Cabin at Milltown, when Eliza took her baby and ran across the Mississippi on the ice blocks, pursued by the bloodhounds.
Sedimentary Rocks. Picture Gallery of the Most Common Rock Types. Breccia is a clastic sedimentary rock that is composed of large (over two millimeter diameter) angular fragments. The spaces between the large fragments can be filled with a matrix of smaller particles or a mineral cement which binds the rock together.hemical sedimentary rocks, such as rock salt, iron ore, chert, flint, some dolomites, and some limestones, form when dissolved materials precipitate from solution. Organic sedimentary rocks such as coal, some dolomites, and some limestones, form from the accumulation of plant or animal debris.
By John Bestoloffe. When rocks are formed from dead organisms and/or rocks that currently exist, they are called sedimentary rocks. They can be divided into three types: clastic, organic, and chemical. Clastic sedimentary rocks are rocks that form from broken pieces of other rocks.Organic sedimentary rocks are formed from the remains of once living creatures and plants.Chemical sedimentary rocks are composed of mineral crystals. These crystals are made from dissolvable elements that are formed by a chemical process and typically found in water.hey can be divided into three types: clastic, organic, and chemical. Clastic sedimentary rocks are rocks that form from broken pieces of other rocks. Organic sedimentary rocks are formed from the remains of once living creatures and plants. Chemical sedimentary rocks are composed of mineral crystals.