Tanzanian Pink Spinel

When it's red, it does look a lot like ruby. When it's pink, it looks a lot like pink sapphire. Luster and polish are similar, with spinel's hardness scoring an 8, corundum a 9. Color for both ruby and pink/red spinel is created by the same coloring agent, giving them both the exact same hue. Making it even more confusing, spinel and corundum are often unearthed in the same region as their chemistry is so similar. (Corundum is aluminum oxide; spinel is a magnesium aluminum oxide.) This is why red spinel has been called ruby for centuries. In fact, the most famous spinel in the world is called the Black Prince's Ruby. (See "Jewel of the Month," JCK, March 2002, p. 73.) Even today few people really salute the name spinel. Could this new find of Tanzanian pinks change that? Color. Like sapphire, spinel occurs in a rainbow of colors. In its purest state, they're colorless. By adding trac

This content is exclusive to JCK Pro subscribers. Subscribe now to access this and much more with discount code GOPRO21 for $199 for an entire year of access (reg. $249).


Already a JCK Pro? Log in

A JCK Pro subscription is your all-access pass to people and resources on the
cutting edge of the retail jewelry industry, from the industry authority you
know and trust

Learn about the Perks of JCK Pro

Log Out

Are you sure you want to log out?

CancelLog out