Australian Boulder Opal 8-9mm Round Necklace - 15-16 Inch 15-22mm ” Most deep red Carnelian

” Most deep red Carnelian has been heat treated to darken the beautiful orange and red tints that are created by iron oxides in the stone

It has been mistaken for ruby and sapphire at times

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

but occasionally gabbro comes in oranges and greens

pink and mauve

Australian Boulder Opal 8-9mm Round Necklace - 15-16 Inch 15-22mm ” Most deep red CarnelianBoulder 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