Stones that are easily confused with Tianhuang are mostly excavated mountains (鲎箕田), excavation pits, deer eyes, excavation underarm yellow, underarm yellow, snake python, water yellow frozen, brook egg, beef egg yolk, even Jianghuang and litchi extract, chicken nest and so on.
First, the difference between Tian Huang and other excavations:
1. Excavated alpine stone and stone. Some excavation alpine stones are very similar to Tianshi, but the quality is soft, but the temperature is not enough, and the lack of treasure, "run" is not as good as the field, the brightness is poor, the greasy is worse than the field, the hand stains can not reach the whole day. The effect of the oil in the field, and the stone must be maintained with oil, as long as it does not oil for a period of time, that is, rough and metamorphosis, loss of smoothness. Although the excavation mountain has radish pattern, if the orange sac or the radish under the skin of the old radish is slightly thicker and more revealing than the pattern of the field yellow or white field. The excavation of the mountain is not enough, the proportion is slightly lighter, and it is much worse than the field yellow.
The surface of the excavated alpine stone is yellow like Tianhuang, but it is not as stable as the color of Tianhuang. It is illuminated under the lamp and white inside. Excavated mountains are also more red, but the color is slightly fresh, such as bloody, or red silk in the white sea sable, dry and dry, and different from Tianhuang. The outer layer of the excavated mountain is slightly more condensed than the original mineral, and its inner core is much different from the original color of the mineral. Excavated mountainous texture is loose, and it is inferior to Tianhuang. The heart of the excavation mountain often contains large red spots, or frosty red as silty stones. Excavated mountain with skin, the skin is yellow and extremely thin, the cortex is loose and the soil is dry and dry.
2, excavation pit head and pit head field. The pit heads and excavation pits produced by the pit heads are all monolithic, and their shapes are often angular and uncovered. The excavation pit head has a thin acidified layer, which is very similar to the excavation mountain, without skin, or without grain or cotton squash. The texture is slightly brittle than the excavation mountain, and the brightness is better than that of the excavation mountain. The stone is light yellow, more transparent than the excavated alpine stone; the ribbon is grayish, the quality is firm and hard, and the grain is thicker. The pithead stone is more acidified, and the inner and outer color of the texture is like the lower yellow, yellowish and slightly brownish, with radish pattern, fine and close to the field yellow, but the column is slightly straight and more obvious, and some lines are slightly thicker. If the granules are not chemicalized. A few have skin, the skin is yellow, thin and thin. This stone material is brittle, with many broken pieces and a relatively straight line.
The stone is warm and close to the field, and the bright and the yellow are the same, but the greasy is not as above, the middle of the field, and the lower part of the stone is comparable. Its value is equivalent to Sancha Ordinary Stone, which is customarily called "Pit Head Field". The rock is heavy and contains a lot of gravel, such as deer. In the whole stone, it is often difficult to obtain only a small part of the mature land, and the quality of the pits is good. Its texture is superior to excavated rock, but most of it still has the characteristics of excavation.
3, deer. The skin of the deer and the outer muscle layer can be transparent, the color is like Tianhuang, and the color is yellow. The texture is yellow and transparent. It will have a crab gray tone, no radish pattern, and only a few layers. If the skin is covered with frosty red powdery halo, the mountain stone is heavy, and it contains hard sand (known as "pigeon eye sand"), which is hard. In the deer's eyes, there are colored yellows such as tung oil and earthen stones, which are top grades, commonly known as "Lumutian". Many of the deer eyes are pounded, often wrapped in yellow skin, and the skin is thin or thick, but mostly thin. The cortex is fine, and the large lattice with criss-crossing is also called "deer mesh", and its volume is small. The deer has a large volume, the quality is turbid, the grid is small, and even the gridless, easy to identify.
4, the squatting of the squatting field under the yellow. Occasionally, you can pick a stone with a slight cyan yellow skin and a texture close to Tianhuang. The outer layer is thick and yellow, and it is reddish brown. It looks like a part of the squatting yellow, and its inner heart gradually fades. It is more obvious and fine. The radish pattern, the lines are slightly straight, the outer muscle layer is often infiltrated with white scorpion egg slag points, more dry cracks, and often have red grid, the quality is as clear as the above, the warm and delicate close to the lower stalking field, only slightly loose. Another type of tunneling is as follows: å‚田黄, the spirit is slightly inferior to the former, no skin or thin small pieces of skin, tender and tender, can not find radish, the color and the next å‚田黄 is no different, crack Less, the warmth of the stone is worse than that of the lower field, and there are occasional scattered white spots such as scorpion eggs in the outer sarcoplasm. These two kinds of stone, the characteristics and value are close to the lower å‚田黄, commonly known as "碓下田".
There are stones in the underarms that are not transparent. The texture is hard and flawless. There are no radish lines. There are also few cracks and no skin. The color is like Lianjiang yellow or candy yellow field. The former two are large, although they are excavating, but they have no sense of warmth. This stone system is under the yellowstone of the local section. The "碓下田" is the stone from the upstream, the sex is like a sloping field (Note: the sloping field refers to the field stone that tumbling down the stream with the stream.) It is not exposed to the sun, and it is different from the underarm yellowstone. There is a difference.
5, snakes. The snakes are also excavated monoliths. (Note: excavated monoliths are produced by non-mineral caves, which are scattered sporadic stones excavated from sand.) It is like Tian Huang, but it is far from the texture of Tian Huang. This stone is not common in red and yellow colors and is a rare product. More common is that the texture is grayish white stone, it looks like white field, but it is not warm, no spirituality, no red, poor psychic, thick ribs, and mixed with gray spots. Its color is turbid, the stone is less cracked, the ratio is more important, the mountain stone is particularly heavy, the texture is hard, and the knife is not smooth. "Warm, moist, fine, greasy, condensed, knot" are far less than Baitian.
6, bovine egg yolk. The bovine egg yolk is produced in the small stream of the southern foot of the mountain near the mountain. It is thick and stubborn, hard and hard, and has no radish pattern. It is more important and easy to identify.
7, Xi egg. The appearance of the egg is slightly like the field, without skin, slightly white inside, no radish pattern, poor spirituality, only weak transparency, no red grid, its texture is Furong stone, and different from Tianhuang.
Second, the forgery of the distinction between Tianhuang
Since the birth of Tian Huangshi, some people have taken various measures to counterfeit. For those who are not familiar with Tian Huangshi and have insufficient experience in forensic knowledge, it is easy to be deceived.
The most common is to use the general variety of Shoushan Stone, the color of the near-field yellow, like the stone with radish, which is made into a pebbles, and is hardened by a hard point or placed in a hard sand, then stained with earth or color, or Adding to the steaming, the appearance of the color is like a skinless field, so that it can more or less cover the flaws of the texture.
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