Australian Boulder Opal 8-9mm Round Necklace - 15-16 Inch 15-22mm It has been mistaken for

It has been mistaken for ruby and sapphire at times

ochre browns and deep greens

but occasionally gabbro comes in oranges and greens

Tibet and other Asian countries

Black Silverleaf Jasper is a rare form of Jasper

Australian Boulder Opal 8-9mm Round Necklace - 15-16 Inch 15-22mm It has been mistaken forBoulder 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