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Classification of rocks

                 Classification of rocks  Classification of rocks  According to wikipedia, a  rock  is any naturally occurring solid mass or aggregate of  minerals  or  mineraloid  matter. It is categorized by the minerals included, its  chemical composition  and the way in which it is formed.   The building stone are classified in three way : - 1) Geological classification of rocks a) Igneous Rocks  All those rocks of the earth that have been formed by the natural process of cooling and solidification from hot and molten material (magma) are called igneous rocks. If magma solidifies on the surface of the earth basalt and traps are formed. If however the magma solidifies before reaching surface of earth, it forms granite. b) Sedimentary Rocks  These rocks are formed by the deposition of product of weathering on the pre existing rocks. All the products of weathering are ultimately carried away from their place of origin by the agent of transport such agent ar

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