Agate is also named as code onyx, onyx, horse brain, etc. It's composition is Silica mineral.It is a kind of chalcedony minerals. It is often a banded block mixed with opal and cryptocrystalline quartz. The hardness is 6.5-7 degrees, the specific gravity is 2.65, and the color is equivalent. There are levels. There are translucent or opaque. Chalcedony with different colors, usually green, red, yellow, brown, white and other colors.

0.8-1.5cm, 1.5-2.5cm, 2-3cm, 3-5cm, 5-9cm etc.

Natural mixed

Granular; Disc-shaped ; Crescent-shaped