Blue Opal 4mm Microfaceted Round - 15-16 Inch R1573 sometimes containing rainbow inclusions

sometimes containing rainbow inclusions

and comes in a range of other colors

It is a white granite with dark gray mottling that also exhibits blue or green spots

but also for industrial purposes from watch gears and scientific instruments to sandpaper and other abrasives

consisting of opaque rust-red glass with tiny flecks of glittering copper suspended within it

Blue Opal 4mm Microfaceted Round - 15-16 Inch R1573 sometimes containing rainbow inclusionsBlue Peruvian Opal naturally occurs with swirling patterns of deep blues, blue to greens and greens swirled with yellow to green, rust, brown and orange. It is highly prized for its beautiful combinations of colors and for its opalescence the pearly luster of the opaque stone. Peruvian Opal was considered by the Incas to be a gift from Pachamama, the Inca Goddess of Fruitfulness and Mother Earth.