Classification of Rocks – Metamorphic Rocks

Metamorphic rock

Metamorphic rocks have been subjected to tremendous heat and/or pressure, causing them to change into another type of rock. They are usually resistant to weathering and erosion and are therefore very hard-wearing.

Examples of metamorphic rocks include marble, which originates from limestone,slate, which originates from clay, and schists formed from sandstone or shale (sedimentary rocks).

Slate Quarry, Cullipool

         Slate Quarry, Cullipool


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