6”1/2 Black/Blue Agate

Agate, translucent, crypto crystalline variety of quartz and sub variety of chalcedony. The colorful, banded rocks are used as semiprecious gemstone and in the manufacture of grinding equipment. And agates banding forms as silica from solution is slowly deposited into cavities and veins in older rock.

Size: Hight: 6 1/2 inches

the stand will be provided as well.