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Concentric zoning, Concentric zone(s)

A kind of banded aggregates of Prismatic or Tabular crystals where crystals are arranged in concentric structures.

• Classification: Aggregates of crystals - Banded

• Frequency:
• Cubic: rare
• Tetragonal: common
• Orthorhombic: common
• Hexagonal: common
• Trigonal: common
• Monoclinic: common
• Triclinic: common

• Examples:
• Malachite