JewelryWiki
The Encyclopedia of AdornmentEst. 2026Every value cited
AboutContactEN

Chrysoberyl

JewelryWiki Editorial·2 sources·Reviewed 2026-07-31
Chrysoberyl specimen
Chrysoberyl specimen. Matteo Chinellato, CC BY-SA 3.0 · Wikimedia Commons

The species that includes alexandrite and cat's eye. High refractive index and hard enough for daily wear.

Properties

PropertyValueAuthority
Refractive index1.746–1.763 [1]
Crystal systemOrthorhombic [2]

Sources

  1. International Gem Society — reference charts (Mohs hardness, specific gravity, refractive index) — International Gem Society (IGS reference charts)
  2. Wikipedia — mineral article infoboxes (crystal system) — Wikipedia contributors (Wikipedia mineral infoboxes)
Chrysoberyl — JewelryWiki