Australian Boulder Opal 4mm Faceted Round - 15-16 Inch New Banded Rounds a mineral of the Quartz

a mineral of the Quartz family

which may form green stains or specks on Azurite crystals or aggregates

or a sandy beach blending into a tropical bay

The stone can also include its namesake sage green

It was named from the Latin "Thule" - which was a term used by ancient Greeks and Romans to refer to the then-little-known lands to the north or present day Scandinavia

Australian Boulder Opal 4mm Faceted Round - 15-16 Inch New Banded Rounds a mineral of the QuartzBoulder 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.