Structure

=Structure=

There are 7 crystal structures which can be divided up into 42 different lattices. Since many of these lattices are equivalent, this is usually reduced to the 14 Bravais lattices, named for Auguste Bravais. The crystal structures and lattices are described below. To see examples of these structures go to Gems & Minerals. Return to Gems & Minerals.
 * = Crystal Structure ||= Bravais lattice diagrams ||
 * = Triclinic ||= [[image:triclinic.jpg width="155" height="213"]] ||
 * = Monoclinic ||= [[image:monoclinic.jpg width="155" height="213"]] ||
 * = Orthorhombic ||= [[image:orthorhombic.jpg width="192" height="200"]] ||
 * = Tetragonal ||= [[image:tetragonal.jpg width="192" height="200"]] ||
 * = Rhombohedral (Trigonal) ||= [[image:rhombohedral.jpg width="137" height="146"]] ||
 * = Hexagonal ||= [[image:hexagonal.jpg width="163" height="196"]] ||
 * = Cubic ||= [[image:simple_cubic.jpg width="153" height="159"]] ||

The lattices are created by combining each crystal structure with a lattice centering method.

For the purpose of this class, the cubic crystal structure was used. Below are the basic structures for the cubic closed-packed (CCP) AKA face centered cubic (FCC), and body centered cubic (BCC).