Crystal minerals are separated into six specific mineral systems. These systems are based on geometry and the angles between the axes. They can be separated even further by sections of "habit", which is the crystals different kind of appearances found in nature.
Crystal minerals are classified into six main crystal systems based on their internal structure and symmetry: Cubic, Tetragonal, Orthorhombic, Hexagonal, Trigonal, and Monoclinic. Each system has distinct characteristics that aid in the identification of minerals. Additionally, the external shape or 'habit' of crystals can further categorize them.
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