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Hexagonal bipyramidal, Hexagonal bipyramid(s)

Hexagonal bipyramidal crystals. This crystal habit is restricted to the trigonal and hexagonal systems.

• Classification: Single crystal - Bipyramidal

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

• Examples:
• β-Quartz