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[[Mineral]] [[crystals]] come in a seemingly infinite range of shapes. But behind this tremendous diversity of form there is a strict order, because crystals always grow according to simple [[mathematical]] laws. By stydying the [[crystal geometry]], [[crystallographers]] can fit any crystal into one of only six basic crystal systems. These are called [[isometric]], [[tetragonal]], [[hexagonal]], [[orthorhombic]], [[monoclinic]], and [[triclinic]]. Chesterman, p. 33
=Sources=
*Chesterman, Charles W. ''The Audubon Society Field Guide to North American Rocks and Minerals'', Alfred A. Knopf: New York (1987)
=Sources=
*Chesterman, Charles W. ''The Audubon Society Field Guide to North American Rocks and Minerals'', Alfred A. Knopf: New York (1987)