Australian Boulder Opal 8mm Round - 15-16 Inch Pink due to variations in iron

due to variations in iron content

while maintaining the wood's original structure

Azurite in crystal form is extremely rare and expensive

as waters loosen and decompose the organic elements and replace them with silicate substances

and over time

Australian Boulder Opal 8mm Round - 15-16 Inch Pink due to variations in ironBoulder 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.