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Crude

Crystal or group of aggregates, whose surface is not smooth having some extent of roughness.

• Classification: Crystal or Aggregates of crystals

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

• Examples:
• Gypsum