“玛瑙是具有不同颜色条带或花纹相间分布的玉髓(见《辞海》)。”三国时,魏文帝曹丕在《玛瑙勒赋》中曰:“玛瑙出自西域,纹理交错,有似马脑,故其方人因以名之。”玛瑙是一种色彩丰富,花纹奇特的宝玉石,因此自古就有“千种玛瑙万种玉”之说。玛瑙石的这种丰富多彩,最易形成赏石人十分看好的图案画面。玛瑙的这种奇石 “The agate is a chalcedony with different color bands or patterns (see Cihai).” In the Three Kingdoms, Wei Wendi Cao Pi said in the “Agate Le Fu”: “Agate from the Western Regions, Like a horse, so its side because of the name of the person. ”“ Agate is a rich color, unique pattern of gems, so from ancient times there are ”thousands of agate million jade," said. Agate stone of this rich and colorful, the most likely to form a very favorable view of the stone pattern picture. This kind of rock onyx