What Is a Crystal in Chemistry?

Definition of Crystal:

A substance in which the constituent atoms, molecules, or ions are packed in a regularly ordered, repeating three-dimensional pattern. Most crystals are solids.

Examples of Crystals:

quartz, rock candy, halite

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Helmenstine, Anne Marie, Ph.D. "Crystal Definition." ThoughtCo, Feb. 5, 2017, thoughtco.com/definition-of-crystal-604416. Helmenstine, Anne Marie, Ph.D. (2017, February 5). Crystal Definition. Retrieved from https://www.thoughtco.com/definition-of-crystal-604416 Helmenstine, Anne Marie, Ph.D. "Crystal Definition." ThoughtCo. https://www.thoughtco.com/definition-of-crystal-604416 (accessed April 26, 2018).