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East African Fancy Sapphire

  • David Federman

Abstract

Twenty-two miles from the Indian Ocean, at a small bend in Tanzania’s Umba River near the Kenyan border, you’ll find a unique two-mile-radius corundum pipe that produces just about every color of sapphire imaginable. Since the pipe’s discovery in 1962, its distinctive stones have earned the name Umba sapphire.

Keywords

Indian Ocean Incandescent Light Underground Shaft Asian Counterpart Small Bend 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Modern Jeweler Magazine 1990

Authors and Affiliations

  • David Federman

There are no affiliations available

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