What striking, intricate patterns there are imbedded in this piece of nature at its best. This is a large slice of a boulder opal, upcycled into a unique, earthy pendant. There are green flashes and fiery “tongues,” swirls, and variations everywhere. This opal was found in Yowah, SW Queensland, and the pendant stone measures a large 3.2″ by 2.5″ and comes on a leather cord. Created by Marina Oehlinger of NaturesArtMelbourne. Boulder opal pendant, $233.