Question 1: What color is agate? Agate can be divided into chalcedony and agate. The original stone with uncomplicated color is called chalcedony, and the original stone with straight and parallel stripes is called striped agate (cut agate). According to the color of the original stone, it is also called twisted agate and crimson agate. Recently, dyed black agate is generally called agate.

The chemical composition of agate is SiO 2；; It can contain Fe Al Ti Mn V and other elements, showing various colors, concentric circles and regular strips, and can also be divided into silk-wrapped agate, striped agate, moss agate, carnelian, onyx and so on. Among them, red agate is the top grade of all colors of agate, so there is a saying in Gegu Yaolun that "agate is poor and has no red life".

(A) by color

1. Red agate

Red agate, ancient red jade. Among the red agates, there are East Red Agate and West Red Agate. The former refers to the red agate formed by natural iron-containing agate after heating treatment, also known as "burning red agate", including bright red and orange red. An East Red Agate, named after it came from Japan in its early years. The latter refers to natural red agate, including dark red agate and bright red agate. Agate unearthed in ancient China belongs to West Red Agate, which comes from the West, hence the name.

2. Blue agate

Refers to blue or blue-and-white agate. This is a kind of agate with very beautiful color, and the large size is a good material for jade carving. People of high quality are dark blue. The second color is light. Blue and white flowers are also beautiful. When they have pinstripe structure, they belong to the variety of silk-wrapped agate. At present, most of the blue agate products produced in China market are artificially dyed, with uniform color and easy to distinguish from natural ones.

3.purple agate

Purple agate. Most of them are single purple, and the quality is as bright as amethyst. The second kind of person is not bright enough, commonly known as "boring". Purple agate is rare in nature, and it is also dyed.

4. Green agate

Green agate is not found in nature. At present, almost all the green agates in the Chinese jewelry market are artificially colored. Its color is thick green, and some colors are like jade, but experienced people can easily distinguish it from jade. Green agate is "thin" in color and green and crisp in texture; Emerald color "vigorous", texture emerald, tough.

5.black agate

Black agate. Black agate is rare in nature. At present, the black agate in China's jewelry market is artificially colored, and the color is thick black, which is easy to mix with other jet stones. Its hardness is greater than obsidian.

6.white agate

White tone or five-color agate. Among them, a kind of so-called white agate produced in northeast Liaoning actually belongs to white chalcedony, which is mostly used to make beads, and then artificially colored as blue, green and black. This kind of white agate is also a large piece of raw material for jade, and it is dyed well in the local area for use. However, nature also produces some white agates, which are generally unpopular because of their incorrect colors, especially those that are gray-white, but they can also be used to make some cheap and low-grade tourism products or souvenirs.

7. Other colors of agate

Agate of other colors can be named according to different colors.

Question 2: What are the colors of agate? The colors of agate are: red, green, blue, yellow, white, gray, purple, pink, mixed color and so on.

a lot of

However, most of the brightly colored agates that can be seen on the market are artificially dyed.

Real pure natural colored agate is mostly white and gray products.

For reference only, please adopt it.

Good luck!

Question 3: What is the "old" in the old agate collection? Refers to people who have been toyed with by their former owners for too long. In fact, natural agate is of course old. Travel time cannot be short.

Question 4: What color is agate? Red agate can improve endocrine, strengthen blood circulation, improve complexion and remove sexual disorders. Orange-red agate can be effectively used to straighten the stomach, activate internal organs, prevent constipation, help discharge toxic substances, and relieve liver diseases, rheumatism, dysmenorrhea, varicose veins and so on. It can balance positive and negative energy and eliminate mental tension and stress. Maintaining physical and mental harmony and enhancing love, loyalty and courage can promote prosperity, happiness and longevity, and play a role in ensuring peace.

Question 5: What color agate is the most expensive? Red: Candle red and pigeon blood red are the best.

Question 6: How to distinguish the old agate agate, the identification method is for reference only;

First, color.

The color of real agate is bright and bright, and the color of fake agate is poor, and the contrast between them is obvious. Natural red agate has distinct colors and obvious stripes. If you look closely, you can see tiny red dots densely arranged on the red belt. The fake agate made of stone has petal-like patterns at the bottom, forming a "chrysanthemum bottom". The dyed blue agate is bright and even, giving people a false feeling.

Second, the texture.

Most fake agates are imitation stones, which are softer than real agates. Emerald can draw marks on fake agate, but real agate can't. On the surface, genuine agate has few flaws, while fake agate has many.

Third, process quality.

The production technology of high-quality agate is strict and advanced, so the surface brightness is good, the inlay is firm and geometric, and there are no scratches and cracks.

Fourth, the level.

Water bile agate is the most precious variety of agate, which is characterized by a closed cavity containing water.

Fifth, transparency.

Real agate is not as transparent as synthetic agate, which is a bit messy. Some can see natural waterlines or "clouds", while synthetic agate has good transparency and is as transparent as a glass ball.

Sixth, weight.

Real agate jewelry is heavier than synthetic agate jewelry.

Seventh, the temperature.

Real agate is warm in winter and cool in summer, and synthetic agate changes with the external temperature. It gets hot when it's hot and cool when it's cold.

Question 7: What color agate is good? It's not easy to pretend that you are good.

Red is the best agate.

There is a saying that agate is poor and never red.

But now 90% of the red agate on the market is optimized and fired.

Aquatic plants and agate are also very good at present. The most important thing is that they should not be fake. There are few fakes, because the cost of counterfeiting is very expensive.

In addition, white agate with high permeability can't be faked.

I hope the answer can help you.

Question 8: What color agate is the most valuable? The quality and value of agate mainly depends on color. The color is bright, bright and pure, and it is not good to mix several colors together. Pure colorless, bluish gray agate cannot be used directly.

In terms of color, red, silk red, scarlet and orange are the colors, while crimson and purple are the lower colors. Some materials are dark red in the block, but the products are bright red, so we should carefully identify them. Among the greens, onion heart green and bright green are colored, and dark green is the lower color. Royal blue and purple blue in blue are colored, while plain blue is the lower color.

Agate has more than two colors and more than five different tones or tones. The black in agate is not dirty, and black and white are particularly eye-catching. The agate wrapped in silk is very beautiful. There are also ordinary ones, especially dark ones that are inconspicuous.

Question 9: How to identify old agate, and how to identify genuine agate?

The most striking sign that natural agate is different from fake agate is that its cross section has concentric layered structure. With this logo, the whole agate is easier to identify, and the cut finished product is easy to admit mistakes because there is no neat and obvious pattern. But generally speaking, natural agate feels cool, its surface looks like a layer of wax, and it has the luster of wax, translucency and hardness of Mohs 7, so it can't be carved with a knife, because the crystals formed in the molten state are mostly spherical, so it is particularly dense; After polishing, the surface is more delicate. After rubbing on the hard miscellaneous board for more than ten times, the agate was not scalded, but the board was scalded. Colors are often mixed together to form beautiful patterns, layers, tapestries and other colorful patterns.

In addition to artificial synthesis, some fake compensations are made of high-quality stones. Its basic characteristics are: it feels cool, but it has no waxy feeling and luster, and some of it has low hardness and can be carved with a knife; Breaking the observation section, except agate has a layered feeling, the particles are thicker and even cracked; Opaque, with clear boundaries between colors. Some unscrupulous traders stick a thin layer of organic matter on the surface of fake agate, giving people the illusion of waxy luster and feel. Pay special attention to identification.