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Are igneous rocks expensive?

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No, not in the least. Igneous rocks are the most common rock types on earth. Their main use is as construction material: building stones, and decorative surface material, like countertops. read more

An igneous rock is just a rock that formed from cooled magma, certain minerals of this variety are rare in the crust (pyroxenes, olivines) meaning the rocks made from those minerals (basalt, Peridotite, Gabbro) are also rare in the crust. read more

Granite,Basalt, Pumice are some of the examples of Igneous Rocks. Granite: Used for expensive kitchen worktops, for construction of monuments, bridges, office buildings, decorative aggregates, flooring and interior decoration.Granite looks smooth and shiny when polished and is the most commonly used igneous rock. read more

Intrusive igneous rocks are formed from magma that cools and solidifies within the crust of a planet, surrounded by pre-existing rock (called country rock); the magma cools slowly and, as a result, these rocks are coarse-grained. read more

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