What are the means of making fake jade in Myanmar:
1, the color is fake
A dyeing and ochre, the organic dye is added to the interior of the jade by heating to be dyed. The initial color, the water jade is heated to 212, and then immersed in the chromium salt solution for 2 hours, the chromium salt will penetrate into the emerald crystal lattice, making it beautiful green. B. Coating jade, coated with organic green dye on the surface of jade jewelry. It is also "wearing." c. Brighten and not polished, jade jewelry is not polished, but sprayed with a layer of green or colorless brightening paint.
2, raw materials are fake
A, two-layer stone, the main stone is the inferior jade raw material, and a layer of water-colored jade flakes is glued on the incision.
B. Three-layer stone, the main stone is the inferior brick head material, and a thin piece of green glass is glued in the middle, and the water is glued to the colorless jade sheet.
C, artificial skin, looking for green but not found or the bottom, or gambling stone gambling lost and then glued, used for the same skin mud glue mixed on the surface of jade raw materials.
D. The jade is artificially eye-punched, and the hole is punched in the surface of the jade. The green matter is placed in the hole, and the hole is sealed, so that people can see green from the skin.
E. Burning jade, the new kind of jade is used as an old jade after it is burnt.
F, people do cutting marks, do the imaging laundry frustration, the light can not get in, it is difficult to observe. Mainly due to the difference in the bottom of the dirty water.
3, with other green jade and artificial green jewelry to fill the green.
Jade B goods (called “new jade†on the market) refer to those jade raw materials or finished products that are soaked with chemical raw materials such as strong acid (including concentrated hydrochloric acid and concentrated nitric acid) to dissolve the jade grains and crystals. Impurities present between the granules. The jadeite with more impurities, more cracks, no transparency, and no beauty is more transparent and transparent than the original. And you can add color as you like. After the acid-soaked jade, the internal structure has been damaged and become very weak, so it is necessary to use epoxy resin for injection molding.
The name of the country is: jade treatment, colorless and transparent after drying, beautiful. However, epoxy resins are organic compounds that age over time and gradually turn yellow while producing many cracks in the turtle. The bright and beautiful colors fade away, and the long-lasting natural gemstones do not exist. Therefore, there are three disadvantages of Jade B goods: one is fragile and easy to fold, such as each other, the pronunciation is short and the sound is not crisp. Second, aging and fading (the time is usually three to five years) is not worthwhile after aging; the third is to use the chemical etchant such as "Wang Shui" in the optimization process, which is harmful to the body. At present, water-repellent glass or silicone instead of epoxy resin has been used as a reinforcing filling material on the market, which makes it more difficult to identify, but it has destroyed the essence of jade and cannot be remedied.
Emerald A, B, C goods
Jadeite is mainly composed of jadeite minerals or other soda pyroxene with higher jadeite molecules, accompanied by a small amount of other pyroxene, amphibole, albite and other minerals.
Jadeite is the commercial name of gem-quality jadeite. It is the most precious and highest-value jade species in jade. It is known as the “King of Jadeâ€.
There are many countries producing jade in the world, such as Russia, Japan, and the United States. However, the only place where jadeite is currently produced is in the northern part of Myanmar, close to the western part of Yunnan Province. The value of high-grade jade is not worse than that of high-grade jade. Then the evaluation of its logo mainly has the following aspects.
Color: specifically refers to green. Yangyang is the top grade; the rest is the second.
Species: fine texture, compact, uniform translucent as a good species; rough texture, loose structure, the naked eye can be identified as the second species.
Water: High transparency, water permeable to water is good. Generally good breeders have good heads. Poor transparency, not transparent for the head.
ç‘•: No cracks and no defects are top grades. Black, dirty, and split willows. There are very few jadeites produced by nature.
Process: exquisite design, fine workmanship, and careful polishing. The opposite is the second.
According to the jade jewelry sold on the market, the State Bureau of Technical Supervision has issued three types of technical standards, namely, A, B, and C goods. This standard does not represent the grade of jade. The A, B, and C products of Jadeite are briefly introduced as follows:
A goods: finished products of natural jade raw materials. Its texture and color have not been artificially modified to maintain its natural essence. Such accessories will become more hydrated and brighter as they are worn longer. High-end jade has value preservation and investment. It is not necessary to add the words “natural or A goods†when selling the mark. If the mark is "Jade Bracelet", it must be natural or A goods.
B goods: dirty, gray, dry, green or dark against jade raw materials or semi-finished products, artificial chemical, physical treatment, can increase its transparency, good appearance, transparent and bright, at the same time Can make the original color look better. This artificially strong corrosion treatment destroys the original structure of the jadeite and makes it loose, so it is necessary to fill the organic glue to fix it. This reduces the quality of its own and changes the original optical and physical properties of the jade. Lost its true value.
C goods: Based on the treatment of B, artificially dyed the colorless or light-colored jade into a beautiful and beautiful color. The added color is red or green. For BC goods, the national standard has clearly stipulated that the name of the goods sold must be marked with “Jade Optimization (Processing)â€, otherwise it will be fraudulent in the case of incomplete charging.
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