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Article: Tiger's eye

Tiger's eye

Types and Composition of Tigers Eye

  • Tiger iron is an altered rock composed chiefly of tigers eye, red jasper, and black hematite.
  • Tigers eye is composed chiefly of silicon dioxide (SiO) and is colored mainly by iron oxide.

Sources of Tigers Eye

  • Common sources of tigers eye include Australia, Burma, India, Namibia, South Africa, the United States, Brazil, Canada, China, Korea, and Spain.
  • It is mined primarily in South Africa and Western Australia.

Cultural Associations of Tigers Eye

  • In some parts of the world, tigers eye is believed to ward off the evil eye.
  • Roman soldiers wore engraved tigers eye for protection in battle.

Cut, Treatment, and Imitation of Tigers Eye

  • Tigers eye gems are usually given a cabochon cut to display their chatoyance.
  • Red stones are developed through gentle heat treatments.
  • Dark stones are artificially lightened using a nitric acid treatment.
  • Honey-colored stones have been used to imitate cats eye chrysoberyl, but the effect is often unconvincing.
  • Artificial fiber optic glass is a common imitation of tigers eye.


  • Tigers Eye. (
  • New interpretation of the origin of tigers-eye. (Geology)
  • Listing of SG of gems and gem simulants. (
  • Mineralogical Journeys in Arizona. (Mineralogical Journeys in Arizona)
  • Cats Eye or Tiger-Eye. (Mineral Resources of the United States / Department of the Interior, United States Geological Survey)

Tiger's eye Data Sources

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