Black Eye Agate 4mm Round - 15-16 Inch Eagle apricot and purplish red

apricot and purplish red

peach or light red and may also include colorless Quartz

The stone's composition remains somewhat ambiguous

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

a green-colored mineral

Black Eye Agate 4mm Round - 15-16 Inch Eagle apricot and purplish redBlack 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.