Tian Huangshi is a rare and precious gemstone unique to China. It is produced only in the 1st square kilometer paddy field of Shoushan River in Shoushan Village, northern Fuzhou, China. Because the hue is generally yellow, and produced in the field, it is called Tian Huangshi. Tian Huangshi was honored as the "king of the stone" and "the stone emperor" in the Qing Dynasty. During the Qianlong period, there was a saying that "one or two fields were yellow and three gold". Today, a small ounce of ordinary small field yellow is worth tens of thousands of yuan, and the price of fine Tianhuang is even more amazing. At the October 2006 Sotheby's Autumn Auction in Hong Kong, a Tianhuang Carving Ruishi Paper Town weighed 207 grams and was sold at a price of HK$39.32 million (equivalent to 41.67 million yuan), with an average of 200,000 yuan per gram. From the attributes of Tian Huangshi, all the artworks that have been carved can be regarded as cultural relics, because it can not be copied, it is a non-renewable art. Tian Huangshi had a very low output in the past generations. After hundreds of years of excavation, especially in the past 30 years, it has been excavated. So far, you can see a piece of peanuts in the production area. It is not easy. The Tian Huangshi excavated in the past, which has been passed down to the present day, has become a rare treasure and has entered public and private collections at home and abroad. The scattered folks are all treasured by collectors.
Identification method:
There should be no white marks on the skin yellow with the nails. The texture of the skin texture of Tian Huangshi is quite characteristic. The epidermis will appear as fine radish with dense mesh, and it will be dense and dense, such as new radish peeling, while the texture of stone such as Qingtianshi and Bahrain is more messy. At the same time, most of the yellowstones are more or less cracked, mostly on the surface, cross-shaped, such as turtle cracks. Tian Huangshi's feel is similar to nephrite, and the texture is warm, delicate and tender. Under the light, the stone heart is yellow and red, bright and eye-catching, even in the cold winter, it feels warm, but if you use nails to trace the yellow, you should leave no trace, because the hardness of Tian Huangshoushan stone is greater than human nails. The feel of the rest of the similar stones is significantly dryer. A stone that conforms to the feel and the characteristics of the skin and has a "stone skin" at the same time can generally be identified as Tian Huangshi.
Tian Huangshi must have four virtues:
(1) Fine: refers to the fine texture, such as the skin of the baby;
(2) knot: the inner quality is dense and shiny, and the hand has a slippery feel;
(3) Temperature: the treasure that has a close relationship with people, no fire; the general Tian Huangshi fraud is firstly made into a natural shape by Shoushan stone, and then dyed, so that the treated fake yellowstone has both bright colors and lubrication. Feeling, ordinary people are not easy to distinguish.
Tian Huang Yuanshi
In addition, it is to use the same kind of ground stone or other places to make a fake stone similar to the ground stone. These stones are very similar in appearance to the real Tian Huangshi, which is generally difficult to distinguish. Therefore, when buying, you must be careful to deal with the beautiful stones of the color, under the beautiful appearance may hide the unknown fake "soul".
False yellow
The third is to use a lot of small pieces of Sanada Yellowstone, a patchwork piece of Tian Huangshi that looks more complete. This kind of stone can't see any problems on the outside, but if you carefully study the inner texture, you will find that the arrangement of silk, grid and texture is chaotic, which is not naturally generated.
Fourth: smear the stone surface with chemical materials such as yellow stone powder and epoxy resin to make fake stone skin, as if it is a skinned "Tian Huang". However, the stone surface of this stone is unusually shiny, and it is easy to have scratches. The scraped powder is yellow, the cortex is very dry, and the texture is lacking.
Fifth: Tian Huangshi faked with yellow plastic. The color of the fake is very similar to that of Huangtian Yellowstone. The imitation of Tianhuang plastic has no outer skin and the color is more uniform. The common outer skin of Santian Huangshi has a changing color and a shallow outer layer. Sanada Yellowstone has radish and red ribs. The imitation Tianhuang plastic product has no radish pattern, no red ribs, and is evenly permeable. Plastic falsification is a method of falsification with low technical content. It is not difficult to distinguish if you look closely.
Sixth: Raven skin yellowstone with resin. Apply black resin to the surface of the yellow stone of Shoushan Stone, and then do it again. A crow skin, Huangshi, will enter the market. Tian Huangshi can not be met, the market is difficult to see the real thing, if you are not greedy and cheap, it will not be fooled.
Seventh: Using high-tech technology, under the same geological conditions, chemical elements are added to quickly generate the field yellowstone. It is said that this kind of fake Tian Huangshi is really more real than it is, it is difficult to distinguish it by the naked eye. In this case, as long as the price is right, it may be better to treat it as a work of art.
Eighth: It is to use a low-grade stone chlorite to dye the field yellow. Because the texture of chlorite is soft and dyed yellow, it looks similar to that of Sanada Huang. The average consumer can't distinguish it with the naked eye. This fake "Tian Huang" stone is more common.
The methods of making fake Yellowstone are numerous and numerous. These are just some of them, and more are waiting for you to test the real gold in the practice and exploration.
Use a low-grade stone chlorite to dye the field yellow. Because the texture of chlorite is soft and dyed yellow, it looks similar to that of Sanada Huang. The average consumer can't distinguish it with the naked eye. This fake "Tian Huang" stone is more common.
Since the density is relatively low, the gap between the molecules is large, so the color is easy to break in, which is highly confusing.
You can use your nails to make a mark when you identify them. Because the hardness of chlorite is low, some powdery substances appear on the nails.
How should we identify Tian Huangshi?
Tian Huang identification is carried out in two aspects, one based on the appearance characteristics and physical properties, and the other based on the mineral composition.
Tian Huang appearance features:
1 color (color and gloss): The color of Tian Huang is yellow, red, white and black. Often a brownish yellow and maroon transition color. Grease shine.
2 structural features: Tian Huang has "radish pattern". "Radish" is the most important identification feature of Tianhuang. Tian Huang sometimes sees that “red grid†or “red ribs†are made up of limonite filled with small cracks.
3 outer casing (outer skin): Tian Huang sometimes sees a thin outer outer skin, and the color of the skin is significantly different from the inner color. The exterior is brownish yellow and the interior is white, called "Golden Silver". The exterior is white and the interior is brownish yellow, called "silver gold."
4 texture: Tian Huang's texture is delicate. Hand touch, there is a slippery feeling.
5 Transparency: The transparency of Tian Huang is from opaque to translucent. Good transparency, can be called "frozen".
The physical properties of Tian Huang: refractive index is 1.56, density is 2.5-2.7g/cm3. It needs to be measured with a refractometer and an instrument for measuring specific gravity.
The mineral composition of Tian Huang is: dikai or pearl clay. It needs to be accurately determined by X-ray diffraction analysis.
(4) Run: It can produce dew-like moisturizing in the palm of your hand, such as the dew;
(5) Condensation: refers to a condensate, such as a translucent jelly;
(6) Greasy: refers to the oil spill in the muscles, playing with a hand for a while will appear oil from the inside out, such as the oil drop. Other stones, there is no such greasy feeling, let alone the oil from the inside out, the oil is dripping.
(2) Tianhuang has a specific gravity of 2. 6 g/cm3 and a molar hardness of 2.5 to 2.9 degrees. It is about the same hardness as a human nail. If the field yellow heat is heated, the stone will become harder.
(3) Tian Huang's texture should have radish patterns, which can be seen under the light perspective. Mr. Shi Chao, the "Indian Stone Debate", first proposed six manifestations of Tian Huangshi radish, which is another contribution of Mr. Shi Chao.
(1) The texture of the inner layer of the radish skin, net-like and long-eyed, gradually dense.
(2) Like glutinous grains, if the glutinous rice glutinous rice is steamed, the rice grains appear to be unshaped, and sometimes they are striped.
(3) The mesh is round and intermittently distributed.
(4) If the heart of the melon is inside, or the light or dark is irregularly distributed.
(5) If the water is corrugated.
(6) Basically, there is no radish pattern, only a few mesh patterns, which is the top product.
(4) The presence or absence of skin in Tianhuangshi is not used as an identification standard and is for reference only. The crack is Tian Huangshi, and it is extremely beautiful without any cracks. "Nothing is not a field, no skin is not a field", for reference only, no identification criteria.
"No grain is not a field", as one of the identification criteria. The radish pattern is not necessarily Tianhuang, but Tianhuang must have radish.
Do you like slip on shoes? It is super simple and fashionable. When your little baby wear this kinds of shoes, it is light weight and cool. You can also call it loafer shoes, which is suitable for both boys and girls. You can choose leather or plush for the insole. If you want to make it winter style, we can add fur.
Our baby slip on shoes:
baby casual shoes,baby loafer shoes,baby slip on shoes
Shenzhen Baby Happy Industrial Co.,LTD , https://www.kidsclothesmanufacturer.com