The mineral name of agate is chalcedony. The texture of agate is crystal-like, fine and free of impurities, lustrous glass-like, transparent or translucent. And most of them are layered, and the layers overlap each other, showing various patterns such as corrugated, concentric, mottled, and layered. Colors are red, white, yellow, blue, black, purple, green, gray, brown, etc. Among them, red is the main color in agate. Because there are few natural red agates and the color layer is not deep, the red in agate is mostly red agate. Its reds are positive red, purple red, deep red, brown red, sauce red, yellow red and so on. In addition, the red and bright agate is called Jinhong agate, and the red and white agate is called Jinhua agate or safflower agate. For jade carving products, it is better to have a large piece, and for jewelry inlaid with stones, it is better to have beautiful colors.

Agate is a large variety in jade carving. It is used in a large amount, mainly red, and cleverly lined with other colors and textures to make agate prominent. There are also other colors as the main, with various colors as a foil, the effect is also very significant. The skilled jade carving masters use extraordinary skills to transform ordinary agate into a precious art treasure. Due to the rich patterns and color changes of agate, there are many varieties, so there is a saying of "dry agate".

Blue agate: light blue, elegant color, darker blue is better, much like sapphire. The output is tuberculous, and there is often a phenomenon of entanglement. In the past, it was mainly used for grinding jewelry and snuff bottles, and the large pieces were good materials for jade carving. Blue agate is different from egg blue agate. Egg blue agate belongs to white agate. It turns white when exposed to fire, and the blue is dark and not blue. Blue agate does not fade after fire, so it is more expensive. Artificially dyed blue agate has been on the market for many years and is dyed with cobalt dyes.

Green agate: rare in nature, mostly artificially dyed, it is colored with white agate or egg blue agate, and the coloring agent is chrome. The dyed green agate is very similar to the high green of jadeite, but it is easier to identify. A little blue flashes in its green color, which is the proof. Because it resembles jadeite, it is very popular in the market.

Purple Agate: Grape purple is better. This kind of agate is relatively rough in texture and slightly low in transparency. Because of its good color, it can be used as jewelry. Large pieces are also a good material for jade carving.

Silk-wound agate: It is a kind of agate with various colors intertwined in the form of ribbons. Because the interlaced ribbons are as thin as oil silk, it is called silk-wrapped agate. Some are red and white, some are blue and white, some are black and white, or as wide as a belt, or as thin as silk, it is very beautiful, and it was called cut agate in ancient times. Silk agate is also a variety often used in jade carving.

Black flower agate: There must be other colors that contrast strongly with black to be beautiful. The so-called other colors are mostly porcelain white and white. Of course, in addition to these two main colors, there are more colors that are better, but each The colors should be bright and lively. Some animals such as pandas are made of black agate, which are very popular.

Weed agate: also known as moss agate, is a variety of agate containing opaque color. There are various colors, green is the most common, and the flakes are like needle-like grass leaves in the light, so it is called weed agate, and the bright colors can be used for jade carving. The central part of water bile agate agate has different characteristics, some are solid, some are careless, some are hollow without water, and some are hollow with water. The agate with water in the center is called water bile agate, which is a precious variety of agate and a rare treasure in ancient times. Water bile agate is better to be bold and watery, and the higher the transparency, the better.

White agate: It has few uses in handicrafts, most of which are used for instrumentation and so on. But since the introduction of artificial dyeing, its importance has begun to increase.