Black Eye Agate 4mm Round - 15-16 Inch Eagle The name originates from the

The name originates from the town of Larvik

” which means to deceive

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

It forms when Quartz and Feldspar crystallize in radial aggregates within other silica-rich stones

second only to Diamond

Black Eye Agate 4mm Round - 15-16 Inch Eagle The name originates from theBlack 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.