Among them, red agate is the most familiar and loved by the public. Nanhong belongs to the red agate family and is the most popular jewelry in the market in recent years. Purple-green agate is deeply loved by jade sculptors because of its unique two colors, and its value has doubled in recent years. Natural red agate is rarely dark in color, mostly light chestnut and orange red. Red stripes with different shades and transparency are interspersed with white stripes. Red is caused by iron oxide particles.
The banded structure of white agate is due to subtle differences in color or transparency. Except for the large white agate with uniform color, most of them need to be dyed before they can be used. Green agate, a naturally occurring green agate, rarely has a particularly bright color, mostly light gray green, and its color is produced by the content of fine minerals such as chlorite. Black agate has been widely used as jade material since ancient times. The ancients often used "pearl agate" to describe wealth. Many legends abroad have mentioned that black agate can bring happiness and confidence to the wearer and bring dreams. Scholars regard black agate as the "third eye" in gems, symbolizing friendly love and hope.
The color of agate is single purple, while pure agate is rare and generally inferior. The color of this agate is often grayish purple, dull, not very bright, and sometimes natural waterlines or "clouds" can be seen, which is a bit turbid. In addition to the color classification mentioned above, agate can also be classified according to internal impurities or inclusions, sources and other information. Limited to space, I won't introduce them to you one by one.