An overview of the characteristics of Tielongsheng and its relationship with jade

Tielongsheng discovered that the time was not long. It was discovered in the jadeite mining area in Myanmar in the 1990s, so it is inextricably linked with jadeite. Due to the green color, Tielongsheng was highly praised by Hong Kong and Taiwan. When the time passed, Tielongsheng was still left behind. It was undoubtedly the best portrayal of Tielongsheng.

The green color of Tielong is deep and thick, showing a green distribution. The green is mixed with black spots with the same size. The number of black spots is more or less, such as stars or dots. This is the naked eye. Important features.

Tielongsheng has a lower hardness and is brittle. The structure consisting of coarse grain combination is loose and tight, and the texture is soft. These properties determine the poor transparency, that is, no water, no dullness, and no dryness. Only a very small amount of iron dragon has a tight structure, greenish blue, strong surface gloss and rigidity, which is the top grade of Tielongsheng.

The limitations and weaknesses of Tielongsheng are obvious, and the loose structure and low toughness hinder the performance of fine carving techniques. Tielong green color is deep and thick. Due to poor transparency, the light can't be transmitted and it doesn't show brilliance. For this characteristic, similar to the method of looking for water in jade, Tielongsheng is often cut into thin slices to increase light transmission efficiency. To make the texture effluent. Tielong raw slices are often carved into leaves, butterflies, safety buckles, earrings and other types. Because the thickness is too small, the sheet is easy to be broken. The solution is platinum inlay. On the one hand, it can fix and protect the sheet from accidental damage. On the other hand, the light reflected by the platinum material reflects on the green, and it can set off the green to make it look. The water is clear and gorgeous. After being inlaid with platinum, the function is concentrated on the pendant, boutonniere or ring face. The green color makes the Tielong raw jewelry have high decoration and ornamental value.

The nature of Tielongsheng has always been controversial, and the mainstream opinion is to identify it as jade. Tielongsheng was identified as the cause of jade. Generally, Tielongsheng was able to issue an appraisal certificate after inspection, and the Tielongsheng appraisal certificate was marked as jadeite. The identification of a jade certificate is usually required to test several important item indices of the test article: refractive index, density and absorption spectrum. The emerald has a refractive index of 1.66 and a density of 3.33. The value of the refractive index and density of the iron dragon is exactly the same.

When pure white light passes through the jade, the light with a wavelength of 437 nm is absorbed by the jade, so that the spectrum is intermittent, and the discontinuity appears as a dark line or a dark band in the spectrogram, and it is judged whether the detected object has a dark line or a dark band at a wavelength of 437 nm. Whether the product is jade or not, this is also the decisive basis when issuing the jade certificate. Tielongsheng can absorb the light with a wavelength of 437nm, which is in line with the definition of jadeite. Therefore, after the test, Tielongsheng is issued with the identification certificate marked as jade.

However, from the gemological point of view, the mineral composition of Tielongsheng and Jadeite differs in the composition ratio. These differences determine the thickness and structure of Tielongsheng and Jadeite in their respective minerals. Generally distinguished, the identification certificate only reflects the basic physical and chemical parameters, and the deeper mineral differences are not exhaustive. If you use the bloodline as a metaphor, Tielongsheng is not the emerald orthodox bloodline, just a distant relative of the emerald. Once the iron dragon is attributed to the orthodox jade, it is inevitable that there is no limit to the extent of the jadeite. In fact, it is more appropriate to regard Tielongsheng as the outer branch of the jadeite.

Hetian jade has the same situation. A little bit of Hetian Yu’s common sense knows that the mineral composition of Hetian jade, Qinghai material, Russian material and Korean material is basically the same. Qinghai material, Russian material and Korean material can be tested and issued with the identification certificate labeled Hetian jade, then they are Is Hetian jade? The fact is that Hetian jade industry strictly distinguishes the difference between them. Any act of selling Qinghai, Russian, and Korean materials as Hetian jade is regarded as deception, and there is no such thing as deception. To.

The relationship between Tielongsheng and jadeite is exactly the same as that of Hetian jade and Qinghai, Russian and Korean. When the green of jade is becoming scarce, the price is skyrocketing, and the more precious it is, the more it is today. Still not tepid, the price is a hundred times more than the same quality jade, although the scientific research theory supports Tielongsheng is the mainstream opinion of jade, but the market's capacity and clear attitude clearly explain the fact that Tielongshenghe Emerald can't be equal. The so-called mainstream opinion is only advocating scientific theory. Only the scientific theory determinists, the specialty of the ruin is nothing but foolishness, and the foolish loyalty never thinks.

The jade industry has always adhered to its own principles and heritage, and will not be easily replaced by certain scientific conclusions. Moreover, the most important jade quality assessment and jade value evaluation, scientific research has never given a strong conclusion, but instead The jade industry experts can give the ultimate assessment of jade or Hetian jade by means of visual observation. After all, jade is special, and the practical experience and conventions are far better than the data provided by science.