Once an Outcast, I Have Found Acceptance in Recent Years

FIRST FOUND BY MINERS looking for rhodolite in East Africa in the 1960s, I was initially thought to be spessartite, but I am actually a combination of that stone and two other garnets: almandite and pyrope. That mix didn’t really excite anyone, however, and I picked up a name based on the Swahili term for “outcast” as I was discarded by the bucket load. The name has stuck though, even as collectors and jewelry designers started showing an appreciation for my navel orange beauty in the ’70s.

Who am I?