Australian Boulder Opal 8-9mm Round Necklace - 15-16 Inch 15-22mm pink and mauve

pink and mauve

ochre browns and deep greens

They are rough specimens but polished on one side to show off all it's amazing colors

Tibet and other Asian countries

sometimes brecciated patterns

Australian Boulder Opal 8-9mm Round Necklace - 15-16 Inch 15-22mm pink and mauveBoulder Opal is a golden brown to dark brown stone, displaying these colors in patterns of parallel bands. It is considered a precious Opal, and forms within a host rock such as ironstone or sandstone. Boulder Opal is believed to help with spiritual development, as well as with reconciling conscious and unconscious thought. This gemstone strand comes as a complete necklace including a base metal lobster clasp and 2" extender, but you can cut it and