Product details
100% Natural – Not treated in any way.
A Stunning Beauty.
Rare Collectors Gem.
Will make a Gorgeous Ring or Pendent accented with Diamonds.
Gem with High Luster and Good Clarity.
A Gem of Lasting Beauty.
Refractive Index: 1.718 (-.006, +.044) Hardness: 8 Chemical Comp: MgAl2O4 Density: 3.60 (-.03, +.30) Crystal Group: Cubic
Spinel Many famous rubies in crown jewels around the world are actually spinels. The most famous is the Black Prince’s ruby, and the The Timor Ruby. Spinel was recognized as a distinct gem variety only in the late 19th century through hardness and X-ray tests. Until then were mixed with Rubies due to similarity in color and brilliance.
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