Crystals form very slowly in a cavity of liquid, and solids form from the liquid into geometric patterns. Understand the formation of crystals with information from a geology professor in this free video on rocks.
How Do Crystals Form?By Jeffrey K. Wagner; Updated October 20, 2017
About the Author
Jeffrey K. Wagner is an associate professor of astronomy and geology. He has been a faculty member of Bowling Green State University Firelands since 1981.