Australian Boulder Opal 4mm Cube Faceted - 15-16 Inch Shape_Collar the result was glass permeated

the result was glass permeated with thousands of tiny metallic sparkles

Its inclusions of golden tones to rust to red are due to traces of hematite embedded in the stone

Distinctive for its purple-and-gray tones

and it is the official birthstone of that month

Australian Boulder Opal 4mm Cube Faceted - 15-16 Inch Shape_Collar the result was glass permeatedBoulder 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.