Very fine almost no grain. Very smooth texture.
II Organic – made from once living organisms. Coal Limestone
Coal – made from the remains of decayed plant and animal material. Peat- plant matter Lignite- brown coal/still some moisture present Bituminous- soft black coal/almost all moisture removed Anthracite – hardened black coal/ almost pure carbon/ no moisture
Limestone – begins as shells or calcium bearing animals or plants. These die and float to the bottom of the ocean or lake they inhabit. Eventually enough accumulates to create enough pressure to create limestone.