Sardonyx 8mm Star Cut Coin - 15-16 Inch july_ruby with banding that creates vibrant

with banding that creates vibrant landscape patterns throughout the stone

second only to diamond

Rhyolite has a non to crystalline composition similar to granite but with a smaller grain size

Each strand reflects the unique mineral composition of the region

spirals or other shapes to harden

Sardonyx 8mm Star Cut Coin - 15-16 Inch july_ruby with banding that creates vibrantSardonyx 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.