Blue agate is a chalcedony mineral containing mainly silica, containing trace elements such as titanium and iron. Bands, colors, transparency, cracks, impurities, and block weights are often used as grading standards.
Blue agate refers to blue agate. With its blue eye-catching eyes, it is based on color theory. Deep color and net meritorious. Faint lighter times. Or a little bit of Qiao Shi, or pure as chalcedony, or mixed with silk blue and white. The area of origin is wide, with production in northeast China and Taiwan, Indonesia, Africa, and Turkey. The blue agate produced in Northeast China is bluer.