Chinese jade has a long history, has a glorious history of 7,000 years, it can be said that the love of jade has been engraved in the DNA of the Chinese people. In recent years, there is a kind of jade in the jade industry that can be called "dark horse", although it is not as famous as jadeite and Hetian jade, but it still enjoys the reputation of "the most beautiful in the Gobi", it is golden jade.
Image source Baidu
What is golden silk jade
Golden silk jade refers to a kind of jade produced in the administrative region of Xinjiang Uygur Autonomous Region, commonly found in the Junggar Basin and surrounding areas of Xinjiang, which is a polycrystalline aggregate composed of cryptocrystalline matter - dominant crystalline quartz, and containing a small amount of iron minerals and other minerals.
Source Little Red Book
Observation through scanning electron microscopy shows that the inside of "golden silk jade" is mostly grainy crystals with jagged edges, of which the crystal particles are mostly above 5 μm, and only a few are less than 2 μm, so the vast majority of golden silk jade can be recognized by the naked eye as its crystal particles, with a coarse structure and poor transparency. Among them, a small number of transparent and delicate people, called "gem light" in the market, have a high market value.
The mohs hardness of gold silk jade can reach 6.5-7, the texture is hard, the wear resistance is good, and it is a high-quality jade raw material.
In addition, the color of golden silk jade is rich and colorful, common yellow, red, white, gray, colorless and so on.
There is no difference between the color of the jade, but the higher the purity and uniformity of the color, the better the quality of the jade. Among them, high-quality red, yellow, colorless gold silk jade has a high price, but the price of coarse crystal, obvious structure and low transparency is low, generally a few yuan a piece. According to the X-ray electron microscopy analysis results, the uniform distribution of iron elements is the reason why the jade is red, and it also shows that the color of the jade is colored by ferrous minerals, and the uniform iron content is consistent with the uniform color of the jade.
On the left is low-priced gold silk jade with large crystals, obvious structure and low transparency, and on the right is high-priced gold silk jade with pure color, uniform color and good transparency.
Golden silk jade is mostly golden yellow and has a "radish silk pattern" inside, so it is called "golden silk jade", of which the internal structure of high-quality golden silk jade is delicate, and it can reach the pure texture of chalcedony.
In 2013, jinsi jade passed the "Xinjiang Uygur Autonomous Region Local Standards", and in 2016 passed the "Quartz Jade Classification and Naming" national standard, it is a new type of jade variety, still in the embryonic development stage. Around 2010, the jade has just entered people's field of vision, the price at this time is low, and now a high-quality, brightly colored, transparent texture of the jade often reaches thousands of yuan a piece. Therefore, the golden silk jade with excellent texture and bright colors has certain ornamental and collecting value.
The high-quality "golden silk jade" combines the warmth of Hetian jade, the color of tianhuang, the hardness of jadeite, the flexibility of Shoushan stone, and the price is suitable, so it is favored by the majority of merchants and consumers.
At present, the collection of golden silk jade is mainly collected, mainly Gobi materials, supplemented by mountain materials. Common instrument types on the market are bracelets, carvings, ornaments and so on.
How to buy
The emergence of golden silk jade has also brought new "opportunities" to bad businesses, and it is not uncommon to counterfeit or shoddy to make profits, so what do you need to pay attention to when buying gold silk jade?
01
Imitations and similarities
Similarity - Aquamarine
The gray-blue aquamarine of the Gobi material is very similar to the gray gold silk seed material and is easily confused, but it can be identified by the certificate.
On the left is the golden jade, and on the right is the aquamarine
Image source GIC
Imitation - crystal
Left gold silk jade, right citrine.
Image source Taobao
The polished crystal is then sandblasted on the surface to imitate yellow, pink, colorless and other gold silk jade.
02
Optimize processing and identify features
The optimization treatment of golden silk jade mainly includes: dyeing treatment, filling treatment, heat treatment, etc. The main purpose is to improve or change its color, increase transparency, increase gloss and add color to the appearance.
Differential:
1. Surface characteristics
The surface of the bleached and filled jade has a large number of ditch networks, and the edges of the granular structure are blurred.
2. Internal characteristics
The dyed jade has a large amount of pigment aggregation in the trench network cracks and particle gaps. It can fade after being wiped with a solvent such as acetone or absolute ethanol.
3. Ultraviolet fluorescence
Naturally nonfluorescent, some treated jade is nonfluorescence or blue-white fluorescent.
Mai Shang jewelry culture is mainly engaged in Buddha's pearl play, etc., which can help you quickly identify the true and false, and buy the real goods! I believe that on the road of wen play, we can become very good friends and keep you away from fakes.