A crystal is a solid whose atoms are arranged in a "highly ordered" repeating pattern. These patterns are called crystal systems. If a mineral has its atoms arranged in one of them, then that mineral is a crystal. A piece of homogeneous solid substance having a natural geometrically regular natural symmetrically arranged plane faces.
Chapter Two: How crystals Form
Crystals often form in nature when liquids cool and start to harden. Certain molecules in the liquid gather together as they attempt to become stable. They do this in a uniform and repeating pattern that forms the crystal. In nature, crystals can form when liquid rock, called magma, cools. They can also form by two elements and make molecules, like sodium and chlorine, and the molecules form the crystal salt. As the elements come together they repeat a pattern called a lattice, The lattice grows and the crystals get bigger. The slower the lattice grows the bigger the crystals get.
Chapter Three: Where Crystals Form
You can find crystals in Emerald Hallow mine in North Carolina, You can find them in Jade cave in california and wegner quartz crystal mine in arkansas
Chapter Four: Fun Facts
1 It's all about the rhythm: Crystals are repeating, three-dimensional arrangements of atoms, ions, or molecules. 2 Almost any solid material can crystallize—even DNA. ... 3 One thing that is not a crystal: leaded “crystal” glass, like the vases that so many newlyweds dread