Australian Boulder Opal 8-9mm Round Necklace - 15-16 Inch Blue Opal and often features color banding

and often features color banding

which dramatically complement the blue in irregular

The first rough material was offered for sale in Tucson in 2011 and is now regularly mined at the remote deposit site in Sonora

Crazy Lace Agate is often dyed to produce colors that do not naturally occur in the stone

Australian Boulder Opal 8-9mm Round Necklace - 15-16 Inch Blue Opal and often features color bandingBoulder 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