Why Would Granite Have Larger Crystals Than Igneous Rocks

Intrusive igneous rocks such as granite have large crystals extrusive igneous rocks may have small crystals as in basalt or no crystals as in pumice.

Why would granite have larger crystals than igneous rocks.

Crystals that form on the surface are tiny because they cooled very quickly. The crystals in granite being intrusive in nature will be larger than those in basalt an extrusive igneous rock. Phenocrysts are minerals that solidified earlier than the rest of the rock and they are important clues to the rock s history. Igneous rocks can have many different compositions depending on the magma they cool from.

The crystals in granite being intrusive in nature will be larger than those in basalt an extrusive igneous rock. I think igneous rock have a larger crystal than all the others because igneous rock is all the way at the bottom of. Because crystals in granite had more time to form as the magma cooled slowly. Why would granite have larger crystals than igneous rocks formed from lava.

Why would granite have larger crystals than igneous rocks formed from lava cooled above earth s surface 1055913. Intrusive igneous rocks have cooled slowly from magma extrusive rocks have. Because crystals in granite had more time to form as the magma cooled slowly. The more time crystals have to form the more likely they are going to be larger in size.

Intrusive igneous rocks have cooled slowly from magma extrusive rocks have. The large grains are called phenocrysts and rock with phenocrysts is called a porphyry that is it has a porphyritic texture. In many igneous rocks large mineral crystals float in a fine grained groundmass. Igneous rocks form when magma molten rock cools and crystallizes either at volcanoes on the surface of the earth or while the melted rock is still inside the crust.