The raisin agate is at the top of the corner more than the material will be fooled by the seller

Recently, an online news about "raisin" agate has attracted the attention of many collectors. Some people say it is extremely rare and expensive. Is the truth really like this? Visiting the collections market last week found that the so-called “raisins” were only small-sized agates with colored particles. Experts explained that the raisins and agates were at the top of the corner and belonged to accessories.

The so-called "raisin agate" is only worth "cabbage price"

As soon as we talk about raisins, everyone is no stranger and immediately think of food. Recently, in the northern collectibles market, there appeared a small-grained agate shaped like "raisin." Some people even claimed that it was extremely scarce. A string of prices would have exceeded 10,000 yuan, and the most expensive ones were at least 2,000 yuan each. Is the truth really like this? After visiting several major collections markets in the city last week, I discovered that this suddenly possessed plaything was not known to a few people. In the face of questions, most businesses shook their heads blankly and instead promoted Madagascar and the “Southern Red” agate. "This so-called 'raisin agate' was not worth the money before. After the sellers in Inner Mongolia put a large number of odd stones alone, they would use sieves to screen out a variety of small stones, and then pile them back in a pile of tens of dollars. The price of 'cabbage' is sold to the acquirers.” The players who regularly travel around the country say that the “raisins agate” has certainly good treasures, but overall its value is far less than that of large items. The strange stone. "Because there are fewer and fewer fine items now, some people only have some scraps left in their hands, and they begin to 'tell stories' to build their momentum and hope that the small materials will also be fired up."

In the exhibition hall of senior stone collector Zhang Xueke, he saw several pieces of stone that look like a bunch of grapes: “This piece is produced in Inner Mongolia’s Alxa League. The piece of green is imported from Africa. For real connoisseurs, Only this kind of strange stone was called a 'grape' agate. It belongs to the Gobi stone and has a high value. The popular online 'raisin agate' may be to play with the ball. He said that the small particles of agate can be Do accessories, belonging to the mass consumer goods, for ordinary people, and "grapes" agate is the star of the strange stone world, "playing rocks people are pursuing natural, small agate beaded together must be machined, naturally not meet the tastes of experienced players ."

"Grape" Agate and "Desert Paint" are Gobi Stone Stars

According to collector Li Nianci, agate is one of the traditional gemstones, among which the boutique is more expensive. With the development of economy, accumulation of people’s wealth, and increasingly scarce resources, boutiques in the Gobi began to drastically increase prices. “A lot of Guangdong buyers went a long way to purchase a large number of Gobi stones and put them back in a vehicle. The cargo loaded in a truck with a load of 8 tons is about 40,000 yuan, but now a large piece of grape agate needs at least hundreds of thousands of yuan.Because the price difference is really too large, the sellers who have been hastily shot can't hold back envy and hate. They went to Guangzhou and even overseas to increase their prices to recover the previously sold stones. After several rounds of carpeted 'mopping up', they returned a large number of them. The rest were scattered in the hands of various collectors and would not be easily sold."

Li Nianci believes that Kistler Stone is almost always the first to be discovered and mined—the best quality and the highest value, because its selling point is that the surface is eroded by air, flowing water, etc. How to dig in people of origin, and the stones buried in the depths are rare treasures.

Learned that in addition to the "grapes" agate exotic goods can be excluded, the other star in the Gobi stone will be the number of "desert paint." Why is it called such a strange name? Zhang Xueke pointed to a yellow stone with a lustrous, lustrous appearance: "Because the Gobi region is very dry, the underground water has a high degree of mineralization. Apart from various salts, the solution also dissolves high concentrations of iron oxide and manganese oxide. Because of the high salt content, when the water evaporates, it is blocked by gravel on the ground, forming many dew-shaped water spots on the gravel floor. Some of the various minerals only stay on the surface of the stone, while others penetrate deep into the stone and form various patterns such as lakes, mountains and water, and various biological shapes.Therefore, some stones have beautiful surfaces, and the inside is very dull, and some of them are not attractive. After the separation, there are things inside.” It is reported that the carrier of the “desert paint” is mainly slate, limestone, granite, volcanic rock, agate, jasper, and opal.

Differential filler falsification: fire broiler, knife scraper, pinch

The color of agate produced by the Alxa League is particularly colorful, especially red, yellow, and green, and with a high degree of moisture, it is very popular with collectors. It was formed by the cooling of magma sprayed from a volcanic eruption of 8 million to 100 million years ago. After long-term geological changes and natural wind and solar eclipses, it formed a strange and colorful gobi agate, which is both reserved and reserved. On the one hand, there are bold and unrestrained bold styles. “In fact, geothermal resources (having volcanic eruptions and hot springs) often have agates, yellow marbles, etc., because they are formed after the eruption of lava, especially the quality of the seed material is good, because in the water, the mine Substances are more likely to infiltrate," said Zhang Xueke.

As we all know, the investment value of Kistler depends to a large extent on the natural properties of Kistler, and it is valued by nature's uncanny workmanship rather than artificial machine polishing. However, with the attention paid to the ornamental stone market in recent years, some unscrupulous businessmen started to fake in order to profit. Some of them are artificially decorated with tools. Some of them even use chemical materials to soak or inject some fillers into artificial stones to impersonate natural stones and form economies of scale. Lao Li said, for example, the plastic injection method is often used in the forgery of small, high-grade ornamental stones such as agate, wind-gravel, and stone, and some people use a mixture of polyester, dye, and high-concentration glue on the surface of the stone or The position of the defect was treated with a plastic injection to add color to the artificial stone.

Search Baidu and Taobao have found that, for example, resin defoamers, curing agents, accelerants, agate powder and other synthetic products are sold on the Internet, and prices range from a few thousand dollars to ten thousand yuan per ton. “This product is a better filler for the production of artificial agate products. The agate products produced with it have high brightness, strong jade, smooth surface, wear resistance and impact resistance.” There are so many businesses advertised. According to industry sources, the so-called agate powder is actually aluminum hydroxide. It is used as filler for solid surface materials (artificial marble, artificial agate stone, artificial imitation jade). It has low viscosity when filled with resin, and it has a high speed at room temperature. He said that consumers can use fire, knife scraping, needle digging and other methods to identify. “A piece of a strange stone has a **like real thing in life. Even if it is a fine product, it is always necessary to develop people’s synesthesia to associate it. If you come across the same thing as the real thing and the real thing, you have to keep an eye on it and have a look. It's true that it's been treasured or it's been fooled."