SPINEL


All facts and figures taken from the GIA

SPINEL

The Black Prince’s Ruby. The Timur Ruby. For centuries, spinel, the great imposter, masqueraded as ruby in Europe’s crown jewels. Until recently, spinel was an underappreciated gem with little consumer recognition. Increasing demand for ruby alternatives rekindled appreciation for spinel’s rich red color and history. In ancient times, southeast Asia’s mines yielded exceptional large spinel crystals, which became the treasured property of kings and emperors, often passing through many hands as spoils of war.


MINERAL: Spinel
CHEMISTRY: MgAl2O4
COLOR: Red, orange, pink, purple, blue, black
REFRACTIVE INDEX: 1.718
BIREFRINGENCE: none
SPECIFIC GRAVITY: 3.60
MOHS HARDNESS: 8


Although not an official birthstone, spinel has long been mistaken for ruby by emperors and monarchs. Many of the famous “rubies” of history were actually spinels.

FOUND WHERE

Precious_Gemstone_Where_Found_Spinel