This is the gemological name for a beautiful green gemstone known to geologists as olivine.  Used as an ornament since antiquity, it has been mined in Egypt, Burma, Pakistan, and Arizona.
   Volcanic vents on the San Carlos Apache Reservation, east of Phoenix, let loose millions of tons of molten rock and ash, containing perhaps the largest deposit of peridot in the world.
   Olivine (not the gem variety) makes up most of the upper mantle of the Earth, and is even found in meteorites from deep space.

Arizona Peridot, from San Carlos, in finished jewelry.
Arizona Peridot
and diamonds, set in
14K Gold.


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