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Electrostatic Minerals, Triboelectric

• Amber (Rubbed, Negative)
• Analcime (Weak, Rubbed or Heated)
• Annite (Rubbed, Positive)
• Copal (Rubbed, Negative)
• Diamond (Rubbed)
• Gold (Rubbed, Negative)
• Mica supergroup (Rubbed, Positive)
• Muscovite (Rubbed, Positive)
• Paragonite (Rubbed, Positive)
• Phlogopite (Rubbed, Positive)
• Platinum (Rubbed, Negative)
• Quartz (Rubbed, Positive)
• Silver (Rubbed, Negative)
• Sulphur (Rubbed, Negative)