MATTE River Stone 8mm Round 15-16 Inch hps_01292026 Onyx is a black and

Onyx is a black and white banded Chalcedony

Mookaite is formed by the ancient skeletal remains of radiolaria

Naturally occuring in hues of blue-green to green with spots and streaks of red

usually in white on hues of brown

Sometimes called the "Black Prince's Ruby" for its role in the English crown

MATTE River Stone 8mm Round 15-16 Inch hps_01292026 Onyx is a black andRiver Stone is a form of limestone composed of quartz, calcium carbonate and other materials. Naturally beautiful, it offers a way to work a neutral color into your designs. This stone is relatively soft, according to the Mohs hardness scale, so treat it gently.