A pegmatite is a rock formed under certain favorable circumstances that enhance the crystal size of the rock. The crystals would be larger than those in basalt, an extrusive igneous rock, and granite, and intrusive igneous rock.
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Pegmatite rocks typically have larger crystals than basalt and granite. Pegmatites form when magma cools very slowly, allowing large crystals to grow due to the abundance of available elements.
The crystals in granite, being intrusive in nature, will be larger than those in basalt, an extrusive igneous rock. Intrusive igneous rocks have cooled slowly from magma, extrusive rocks have cooled quickly from magma. Crystals grow larger from slow cooling magma.
Granite is an intrusive igneous rock formed deep beneath the Earth's surface from the slow cooling of magma. This slow cooling allows larger crystals to form, resulting in the coarse-grained texture of granite. Basalt, on the other hand, is an extrusive igneous rock formed from rapidly cooling lava on the Earth's surface, which prevents large crystals from forming.
Igneous rocks, such as granite and basalt, often have crystals embedded within them.
Igneous rocks, such as granite and basalt, often have crystals inside due to their formation from cooling magma.
Granite has more silica content than basalt. Granite is a felsic rock with higher silica content, while basalt is a mafic rock with lower silica content.