The fresh lime green of peridot is its distinctive signature. Its spring green color also is ideal with sky blue. Today most peridot is mined, often by hand, by Native Americans on the San Carlos Reservation in Arizona.
A pink sapphire is in the corundum family. The pink color comes from chromium impurities in a compound which is predominantly aluminum oxide. Gems, with a greater percentage of chromium impurities, are a deeper red and designated as rubies.