As a kind of agate color jade, is often used as a decorative jewelry. In ancient times is regarded as the valuable amulet. Agate in carving art is a kind of common materials, in has been found in many places of historical interest can see its shadow, especially in the Bronze Age Minoan civilization. At the same time, a symbol of agate is regarded as beauty, happiness, luck and wealth. Despite the various colors, but red, blue, purple, pink for the best, and the requirements of transparency, no impurities, no crack.