Different Types of Rocks
There are three different types of rock based on their origin. The three different types of rocks are as follows-
- Igneous rocks- The rocks from the lava's cooling and solidification. These are formed from the molten magma that comes from the earth’s surface These are of two types. If it forms large crystals below the earth’s surface, it is called the Intrusive igneous rock, whereas if the rocks erupt on the surface and form tiny crystals, then it is called the Extrusive igneous rock.
- Sedimentary rock- The rocks formed due to the deposition and subsequent cementation of the material within water bodies and the earth’s surface by the sedimentation process is called sedimentary rock. Depending upon the sedimentation mechanism, these are further of three kinds- Clastic, Chemical, and Organic sedimentary rocks.
- Metamorphic rocks- The rocks that are formed because of high temperature and pressure deep beneath the surface of the earth are called Metamorphic rocks. They form most of the earth’s crust. These are further divided into foliated and non-foliated metamorphic rocks.