• Hardness

  7.0.

• Occurrence

  Sri Lanka (Ceylon), India, Brazil, South Africa, Australia, and the U.S.

• Appearance

  Chatoyancy, appearing in these varieties of quartz, is caused by fibrous inclusions of crocidolite. Blue-rey or bluish in appearance.

• Enhancements

  Crocidolite is not enhanced.

  More information on gemstone enhancements.

• Quartz Gemstone Family

  •  Quartz
  •  Chalcedony
  •  Hawk's Eye
  •  Ametrine
  •  Rose De France Amethyst
  •  Amethyst
  •  Citrine
  •  Prasiolite
  •  Green Quartz
  •  Bi-Color Quartz
  •  Cat's Eye Quartz
  •  Drusy Quartz
  •  Gold Included Quartz
  •  Grey Quartz
  •  Lepidachrosite
  •  Petersite
  •  Rose Quartz
  •  Rutilated Quartz
  •  Star Quartz
  •  Smoky Quartz
  •  Tiger's Eye
  •  Tourmalinated Quartz
  •  Peach Aventurine
  •  Aventurine

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Last updated April 2, 2012
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