The three types of rocks igneous, sedimentary, and metamorphic are all subject to processes that change one rock type into another. The images below show several types of rocks undergoing these processes.
Lime is a soil amendment made by grinding limestone, a naturally occurring type of rock that is very high in calcium. Two types of lime are commonly used in lawns and gardens, agricultural lime and dolomitic lime. Agricultural lime, also sold as garden lime, is made from calcium carbonate.
Lime. Lime is an alkaline substance that raises the pH of the soil. Many soils have naturally occurring lime -- especially if they are highly alkaline -- but those that donât benefit from adding lime.Most lime is calcium carbonate (CaCO3), and is often called agricultural lime or ground limestone..heir composition depends on such factors as whether they are composed primarily of sand, clay or loam, on how much of the three main plant nutrients -- nitrogen, phosphorous and potassium -- they contain, and on whether their soil is acid or alkaline. Lime is used to affect this last factor by raising soil pH.