Black Sardonyx 6x8mm Corner Drilled Table Cut Cube Bead - 15-16 Inch Size_4-6 but takes a trained eye

but takes a trained eye and a microscope to discern the difference between this material and the Jade it is named after

Peruvian Opal was considered by the Incas to be a gift from Pachamama

Petrified wood is created through a process called permineralization

These flecks glitter as they catch the light and may appear white against the dark blue of the glass

Dutch Colonel Hendrik Von Prehn

Black Sardonyx 6x8mm Corner Drilled Table Cut Cube Bead - 15-16 Inch Size_4-6 but takes a trained eyeSardonyx has a Sard base, typically of brown or black, with bands of white Onyx running through it. Sard is not Onyx, but rather a dark variety of Carnelian. Sardonyx is sometimes treated to bring out its reddish tones. It is believed by some to improve memory and increase analytical skills.