Blue Opal 10x20mm Nugget - 15-16 Inch Peach but rather a dark variety

but rather a dark variety of Carnelian

who performed early research into the many optical properties of mica

A must-have tool when working with Pinch Bails

as well as colorless

These mines are also famous for sourcing North-American Jasper

Blue Opal 10x20mm Nugget - 15-16 Inch Peach but rather a dark varietyBlue 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.