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Tetragonal, Tetragon(s)

Tetragonal crystals. This crystal habit is restricted to the cubic system, especially those having 4 rotatory inversion axis.

• Classification: Single crystal - Granular

• Frequency:
• Cubic: rare
• Tetragonal: none
• Orthorhombic: none
• Hexagonal: none
• Trigonal: none
• Monoclinic: none
• Triclinic: none

• Examples:
• Chalcopyrite
• Tennantite
• Tetrahedrite
• Zunyite