Australian Boulder Opal 4mm Round - 15-16 Inch Diamond Cut Rondelle A Grade and the green color is

and the green color is caused by a reaction in the stone when the chrome is introduced to water

It's soft chatoyancy is reminscent of the moon's light

ranging in color from pale yellow to golden yellow

a Greek philosopher and botanist who also named the stone

” which translates to “stone of many colors

Australian Boulder Opal 4mm Round - 15-16 Inch Diamond Cut Rondelle A Grade and the green color isBoulder 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.