Why Do Larger Crystals Form When A Magma Cools Slowly Instead Of Rapidly?

Why Do Larger Crystals Form When A Magma Cools Slowly Instead Of Rapidly? The size of crystals produced depends on the rate at which the magma cools. If cooling is very slow, minerals have lots of time to grow, and so large crystals are produced. If cooling is rapid, little time is available for growth,

What Type Of Rock Contains Large Crystals?

What Type Of Rock Contains Large Crystals? Igneous rocks contain randomly arranged interlocking crystals. The size of the crystals depends on how quickly the molten magma solidified: magma that cools slowly will form an igneous rock with large crystals. What type of rock has large crystals? Intrusive rocks, also called plutonic rocks, cool slowly without