Black Eye Agate 6mm Round 15-16 Inch Crystal Quartz Shungite has been used as

Shungite has been used as a folk medical treatment since the early 18th century

and it can be mottled or striated with veins of these colors

having been worn by shamans

but rather a speckled teal Jasper found in Africa and often treated to simulate the beautiful blue to green associated with true Turquoise

It also occurs in golden yellows and browns as well as milky white

Black Eye Agate 6mm Round 15-16 Inch Crystal Quartz Shungite has been used asBlack Eye Agate is a variety of Sardonyx which 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.