Orthorhombic System
(Rhombic System)Three axes, all of different lengths, are at right angles to each other. Based on a rhombic (diamond-shaped) inner structure.
Crystal shapes include:
Common Orthorhombic Crystals:
Alexandrite
Andalusite (Chiastolite)
Celestite
Chrysoberyl
Danburite
Dumortierite
Enstatite
Hemimorphite
Iolite
Tanzanite
Topaz
Zoisite