Is it to look at brightness and gloss to distinguish it? I don't know much? Please ask the master to give pointers one or two. The more effective the method, the better!^-^ Thank you!
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Like an emerald bracelet, there is really a cotton -like flocculation inside. If not, it must be fake
Identifying Emerald:
a goods: There is only a change in shape between the jadeite jade and the finished product, and there is no other change. . It refers to the emeralds that are soaked in acid or other reagents, rinsing emerald products, remove the impurities in it, and increase their transparency and uniform color. Because this treatment will cause structural loose structural loose, it must be squeezed into the resin (low -level B) or silicone (high -grade B) under high pressure to fill the gaps of impurities, reinforce the structure of the loose. That is: the white or inferior emerald surface is dyed into green or the colors are used along the crack .b C goods: After purifying the impurities, the color is added, which is both purified and the color of the color is added. Added, and there is an external color to add. Theb C goods are more complicated and the span is also large. It can be close to B goods, or it can be close to C goods.
to see the color: natural jadeite color is natural, uneven distribution, uneven distribution, uneven distribution, uneven distribution. Green is extended, generally no fluorescence.
The polishing surface: The polishing surface of natural jadeite is delicate, smooth, and a strong glass luster with fat. If you observe it carefully on the polishing surface, you can usually see the spots like spots. Under normal circumstances, the size of the same jadeite spots is uniform; at the same time, it can be seen that the slightly translucent white fiber crystals are commonly known as "stone flowers".
Listening to the sound: Gently hit the natural emerald, which made a crispy and pleasant sound. If it is artificial processing, it makes a low dull sound.
. Due to the large emerald density, it feels like when using the hand;
At the same time, experts remind consumers that when buying higher jewelry and jade, they must choose regular, well -known jewelry stores or larger and reputable shopping malls. Also remember to ask the merchant to write the jewelry and jade appraisal certificate with the "CMA" and "CAL" logo. Usually, each of the more precious jewelry and jade has a certificate. photo.
The first to know the difference between emerald and ingredients, it is the most confusing with emerald. The ingredients are artificially melted, the structure is relaxed, and the green is uniform. Although it is unevenly manufactured, it is uniform but very unnatural. Emerald is a natural ore. The structure is tight and the green is mostly uneven, but it is natural. It is emerald without bubbles.
It to know how to identify the colorful emerald. Put the colorful jadeite into nitric acid or sulfuric acid, and after a few hours of green retreat. Put the colorful jadeite on the iron device at 70 ~ 80 ° C, and the green will be retreated after a few hours. The two characteristics can be used to distinguish the colorful emerald and natural emerald.
It the difference between jadeite and green natural ore: The green of natural ore that is easily confused with emerald is not as bright as emerald green, and the characteristics are different. Black dots are triangular. Australian stone, green flashing blue head, impure color. Green agate, green flashing blue, uniform color, but transparent. Dongling stone, green flashing blue, flashy, shining small white stars on the surface.
It the spaging mirror is a key tool for distinguishing dyeing and natural green jade.
This teach you how to identify the advantages and disadvantages of jadeite:
The jadeite has won the beauty of the King of Jade because of its luxurious and deep and stable character. Its advantages and disadvantages should be from the four aspects: color, transparency, shape and impurities.
color -color is an important link that determines its value. The color should be strong and uniform, and the color must be positive.
transparentness -good emerald transparency, fine texture, emerald and dark green have a sense of transparency, such as clear spring water, and given luster and good water.
shape -the shape, size, and thickness of the emerald should be appropriate, and the grinding thickness is uniform.
The impurities -whether the texture is clean, whether the impurities contain impurities determine the advantages and disadvantages of jadeite, there should be no black spots, spots, no cracks, and flower marks in the jadeite.
The jade A, B, C
In emerald trading, the definition of jade A, B, and C has obtained consensus: Natural jadeite jade pieces that are not filled and coloring are called For A goods. It is called B goods that are treated by filling (such as filling the polymer polymer, etc.); the mineral composition of cargo B is the ingredient of natural emeralds, and the color is natural. , Gloss, etc. For example, it is called C goods for coloring; the mineral composition of C goods is the ingredient of natural emeralds. If there is a charge of filling and coloring processing at the same time, it is called B C goods.
1. The color of jadeite
The emerald green emerald is regarded as a treasure, and there is a saying "one more than ten times high". Therefore, the emerald coloring technology is constantly innovating. In addition to adding red and purple, only green varieties. Dyed colorless jadeite into gorgeous green emeralds pretend to be high -end jadeite sales, causing some consumers to suffer large losses and spiritual burdens. In the past, the dyed emerald could be seen in the mesh cracks, and some of the current green emeralds (including some B C accessories or slices) can no longer be seen, so you can't see that there are colorful agents in the cracks. Not necessarily A goods. In recent years, there is a common light green emerald bracelet and pendant in the market, which is pretending to be sold for natural jadeite. This type of jewelry is soft in color, with a certain degree of transparency (water), no glue, and the sound of knocking is basically the same as the natural emerald. The retail price of this bracelet is generally 500-1500 yuan, which is welcomed by the general working class and tourists. According to multiple detection materials, a dye is filled in the micro -pores. Due to the reflection of the light, the emerald of the dyeing part is pale green as a whole. Some of the stains are dyed, some are dyed, and some are accompanied by dyeing purple (also known as "spring"), which makes a bracelet present a few special varieties of light purple. Use a 10 -fold large mirror (obviously even with the naked eye). You can see the dark green filament immersed in the microre. After dyeing, the color is lighter, but it is more natural and has a greater deception; not only the general consumers are difficult to identify, but some bosses with certain business experience have not seen the doubts and did not see the doubt. Class jewelry.
2. Regarding "Cui Xian"
Mewen monographs in some experts believe that natural jadeite is different from other jade (bag scraping emerald B goods) is natural emerald with "green" (commonly known as "flies wings"), that is, jadeite The crystal flashing phenomenon is the flash of mineral crystal surface. Micro -crystal jadeite generally does not see "green", so "green" cannot be used as a characteristic sign of natural jadeite.
3. The sound of knocking
The knocking sound cannot be used as the basis for judging jade A and B goods. Some jadeite sellers often use two bracelets to gently impact the crispy "steel" sounds as natural emeralds, and the impact sound of obvious emerald B goods is slightly dull. However, the "steel" sound does not necessarily be natural emeralds, such as transparent pirates (such as Qinghai jade), flaspite sodium jade (such as "Burmese" Water Mozi "jade), etc. It also has" steel sounds ". Some B goods appearing on the current market can also emit crisp "steel" sounds.
4. The mesh
The jade rinsing emeralds generally have obvious pores and mesh structures. The stress and weathering effects in natural emerald can produce obvious pores and mesh structures, which is often difficult to distinguish with mesh cracks produced by acid corrosion. The opinions of "observing mesh, hemp points, and pit pits must be B goods" may not be appropriate. Because of this, the author recommends removing the concept of "gum -free B goods". The natural pores of the emerald can be filled with boilite, clay minerals, etc.; During the processing of cutting, grinding, and polishing, you can also fill the mineral powder or polishing powder. These fillers are not counted as B, and it is easy to identify.
5. The B goods
It articles believe that the filled filled by goods B is epoxy resin. Wu Shuntian et al. (1995) pointed out that the jade B goods charging commonly seen in the market is resin similar to Opticon. Others also see phosphate phenyl acid compounds. Organic polymers are a more complex system; traditional filling wafers are generally considered not to belong to B goods, and they are still regarded as A goods. However, Wu Shuntian and others believe that the wax that is filled should be B. This opinion should be considered, because some porous jadeite, the visual effects of the filled glue and wax are similar, and have the same deception.
6. The division of emerald grades
The jade jade piece of the appraisal is definitely natural emerald, according to the 5C2T standard: ingredients (), color (color), clarity, cut (cut), weight (Caat), transparency (), structure (Texture)] Divide the product level and price grade (B, C goods generally do not require work level division). Emerald is the crown of jade. High -end emeralds continue to create amazing sky -high prices at each auction. Therefore, the B, C goods and other imitation products of natural jadeite are endless, making authentic merchants, consumers and inspectors hurt their brains.
Mana is harmful to the ancient jade
. A lady could not stand the clever tongue of an antique market in the antiques market. The lady saw from the book that the ancient jade had to be personal, and the color would become more and more beautiful, so she wore a fine rope and hung on the neck. Unexpectedly, after a few days, she felt painful and itchy on her chest. At first glance, the skin in contact with "ancient jade" had become red and swollen, and that Pei Yu not only did not become moist, but became dim. After identifying the expert, it was believed that this was a pseudo -ancient jade that was chemically treated. Buying such a paddy will not only cause economic losses, but also can also be harmful to health.
It is understood that the current pseudo -antique jade is extremely flooded in the antique market. Puppets often use chemical corrosion methods to make ancient jade and ancient color. These chemical reagents are usually hydrofluoric acid, nitric acid, sulfuric acid, and hydrochloric acid. After making the color and gray skin of the pseudo -ancient jade, the surface is coated with floor paint, crystal paint, epoxy resin, etc., causing the illusion of light and moisturizing and gray skin into jade. Relevant experts remind citizens that human skin and such pseudo -ancient jade have been contacted for a long time, and there may be symptoms such as redness, tingling, itching, and molting. Facing the pseudo -ancient jade, collecting enthusiasts should be careful!
Attachment: The maintenance of emerald
The chemical properties of jadeite are very stable, so maintenance is relatively simple and easy. "Jade raising people, raising jade", emerald is more beautiful, often wearing emerald is the best maintenance of jadeite. Daily maintenance, just wash it with water, remove the dust, and then dry it with a clean and soft cloth; it is best to do it in a safe place such as a sofa and carpet when we wear or take off; Whether the necklace is strong and find out if it is broken.
Inval diamonds:
Is increased the demand for jewelry and diamonds in society, artificial diamonds and other impersonal diamonds to continuously expand the market, and even some jewelry operators are unclear. Here are several ways to identify the authenticity of diamonds.
1. The single -folding of diamonds
The single -fold light of diamond is determined by the essential characteristics of the diamond. And most of the other natural gems or artificial gems are double -fold. The impersonal diamonds are observed at 10 times the large mirror. From the perspective of slightly obliquely on the front, it is easy to see overlapping images of the edges and corners, and at the same time present two bottom lights. The difference between the dual refractive index is small, such as vermiculite, etc., can also see the overlapping image of the bottom.
2, the adsorption of diamonds
diamonds have a certain affinity for oil and dirt, that is, oil pollution can easily be adsorbed by diamonds. Therefore, touching the diamond with your fingers will feel sticky, and your fingers seem to have a sticky feeling. This is what any gem is. This method needs to be trained to master the delicate differences.
3, the characteristics of the front line
Dip the ink with a pen through the diamond. If it is a real diamond, the surface leaves a smooth and continuous line, which is characterized by a straight line. The counterfeit is left with the lines composed of small dots. Observe this method to observe the amplification mirror.
4, the unique King Kong luster
Under 100 degrees of incandescent lights, the cut diamonds are compared with counterfeit products. It is easy to see which one has diamond luster. This method should not be performed under too dark or too strong light.
Look at
Then the magnifying glass looks at polishing
The identification of true and false jade
It jade can be divided into two types: nephrite and cherry jade. Sweet jade is also known as emerald. From the perspective of chemical ingredients, nephrite is silicate containing calcium, magnesium and iron, and silicate containing sodium and aluminum.
The common methods of identifying true and false jade articles below:
(1) Shuijian Method
The drop of water on the jade.
(2) Hand touch method
If it is true jade, it feels cold and lubricating with your hands.
(3) Observation method
observed the jade to the bright place. The color is clear and the green is evenly distributed.
(4) The tip of the tongue tip of the tongue
The tongue tip of the tongue is really astringent, but there is no false jade.
In addition, you can also use a magnifying glass to observe, mainly depending on whether there are cracks, and the value of cracks is greatly reduced.
The quality of jade
The quality of jade has six standards, namely "color, transparency, uniform, shape, knocking, photo".
(1) Color
The jade is the best, and the value of red and purple jade is only 1/5 of the green jade. If it contains red, purple, green, and white, it is called "Fulu Shouxi"; if it contains only red, green, and white, it is "Fulu Shou". The color is dim and slightly yellow. If it is monochrome jade, the color is uniform.
(2) Transparent
The transparent crystal is like glass, without dirty spots, no bran, not astringent as the top product. The transparent and opaque jade is called intermediate jade and ordinary jade. Before the Qing and Qing Dynasty, jade with red, green, and white colors was called emerald jade. In modern times, emerald jade refers to the general transparent jade. The current emerald jade lives with transparent and green hometown.
(3) Uniform
The color of jade is evenly uniform. Although it is white and green but the color is uneven, the value is very low.
(4) shape
The shape of jade can be processed into different styles according to different aesthetic requirements without special standards. Generally speaking, the bigger the jade is better.
(5) Knock
This often breaks and cut tattoos in jade. Generally, it is not easy to observe. If you use a metal stick to knock, or throw the jade gently on the table, you can clear it from the sound of the sound. Whether the crack is distinguished or not. The more crisp the sound, the better.
(6) Photo
The black spots and defects that are not easy to find in the jade eye. As long as you shine with a 10 -fold mirror, you can see it at a glance.
The quality of jade can be divided into 10 levels, and each level can be subdivided into three levels 3. Among them, Bai Yu is the lowest in terms of its color and transparency.
The characteristics of natural jade are slightly light -colored without light blue (commonly known as evil color). There is also a synthetic jade, which is made of jade powder and crystal and salt water. The appearance is quite dark "old pit jade". The method of appraisal is very simple. Because of the different proportion of natural jade, you can use your hands to qi, or you can use it with balance.
At present, there are often some mixed mixed machining fake jade in the market. The general method of distinguishing fake jade is to see, listen, and test.
(1) Look at
mainly depends on crystal transparency, internal structure, gloss, etc. True jade is transparent, luster, natural pattern, and the internal fiber state is not easy to imitate.
(2) Listen
The sound of real jade is crispy, and the sound of artificial fake jade is stuffy.
(3) measurement
mainly measured hardness. Based on the glass plate (carsic hardness 5.5) as the standard, except for the jade and turquoise, the strip marks can generally draw a strip marks on the glass plate, and the jade itself is not damaged. Fake jade is generally soft, and the glass cannot be moved.
M common fake jade is generally processed with plastic and glass. They are all non -crystal materials, low hardness, low density, and the characteristics of the essence of materials. If the plastic can use steel needles, it can be used to engrave scratches, and it is gently drifted in my hand. The glass shows the bubbles inside the light or the sun, and the on -light mirror shows the intra -corpus (no periodic light and dark change when turning), and there are raw materials to make vortex stripes.
The quality identification of jadeite
among the many members of the jade family, the most precious push is the emerald. It is a natural ore with high hardness and very small output. Its color is mainly green and red. Red is emerald, green is green, hence the name emerald.
(1) The classification of emerald
① Special grade: gorgeous green (emerald green), apple green, glass ground (translucent, delicate texture), uniform and bright, no impurities, no cracks.
② Commodity grade: green, oily land, slightly transparent, translucent grandmother green fine pulse and spotted green.
③ ordinary grade: flour ground, bean green, light green, white delicate, slightly transparent. Occuasive emerald, generally only jade jewelry.
(2) The quality of the jadeite
① texture. The natural emerald texture is transparent or translucent, the surface is oily and shiny, and observes carefully. It can be seen that the slightly transparent "salt granules" and the fibrous substances around them can be seen.
② hardness. Natural emerald is a rough jade, and Mo's hardness is 7 degrees. It is engraved with sharp knife, leaving no traces; fake jade has low hardness, and the knife can be engraved with traces.
③ emerald. Natural jadeite observes strong light. It can be seen that there are emerald flashes of other mineral particles, which are called emerald or green; the fakes made of glass, plastic, and porcelain have no such "emerald" characteristics.
④ relative density (proportion). The natural emerald structure is hard and tight, no bubbles, a large density, and the sound is crispy when knocking; the fake structure is loose or bubble, the density is small, and the sound of the sound is hoarse and crisp.
⑤ color. The true green color is strong and pure. Some fakes are used with white jade, snake pattern, Australian jade, Korean jade, cloud stone, and even miscellaneous stones. "In the strong light, the green lines can be seen, messy and small; although some do not show the texture, it is turbid and the gloss is poor, and its weight is lighter than the real product.
This pseuda is placed in a boiled waxing liquid, and the piglets that are irrigated will be slowly precipitated. In this way, it will not damage the sample of the sample, but also identify the true and false.
The observation with Celesia filter, plus color green is purple -red under the mirror, and the natural genuine color is unchanged.
If fake jadeite is artificially melted with glass, the structure is relaxed, the green is uniform and darker, some have bubbles, and the sound is hoarse.
(3) The purchase of emerald
① Look at the color. See if the color is pure, strong, uniform, and check whether there is a hidden mixed color with a concentrated flashlight. The color is strong, pure, uniform, and the impurities are small. Emerald green in emerald has a high price, followed by red and purple. In the green, the green seedlings with a slightly tender and slightly yellow tone are the best. The second is gem green, rivers green, and oil green, all of which are uniform in green.
② Observe transparency. Observe in strong light, the higher the transparency.
③ Listen to the sound. It is better to knock on the sound of crispy ears.
④ Observe emerald and stone flowers. Observations for light, there are flashes (ie, emerald) in emerald, and often have white flowers, called stone flowers. Both should be less.
⑤ look at the cracks and dark spots. Some of the cracks exist in the raw ore, and some are caused by processing, and less; black spots are black spots throughout the emeralds, which are also small and small.
⑥ Look at the processing level. It is better to use smooth surface, polishing, and shape.
The authenticity of natural crystal necklaces
Crystal is an excellent quartz crystal. Most of them are colorless and transparent. A small amount of different colors is presented because of various trace elements. It has high hardness and good folding. The necklaces and glasses processed with high -quality natural crystal have become high -end decorations and practical products for beautifying life and eliminating diseases.
The crystal necklace is one of the gem jewelry that is popular in the world. It is colorful and crystal clear under the light, which can produce a special "cat eye" phenomenon. Crystal contains trace elements such as selenium, zinc, aluminum, titanium, etc., which continuously produce photoelectric effects and electromagnetic fields in real estate. After processing and grinding, they can focus on storage and produce light. Long -term wearing can regulate human body functions, making people vigorously, full of vitality Essence However, glass -made fake crystals often appear on the market, which must be identified carefully when purchasing.
(1) Test hardness
The crystal hardness is 7 degrees, second only to three minerals such as diamond diamonds, Gangyu, and yellow jade. Use crystals to draw traces on glass and metals, while fakes do not have this quality.
(2) Try the relative density (gravity)
The relative density of the crystal is 2.60 ~ 2.66, which is more important than the organic glass (glass relative density 2.5).
(3) Testing feel
Crystal is cold, and the feel is cool. At the same low temperature, the crystal is cold and translucent, licking it with the tongue, more cold and bone; licking the glass fake without this.
(4) Try to high temperature stability
crystal melting point 1713 ° C. Put it at high temperature above 800 ° C and boil in cold water before it is not broken; Put it in water and immediately burst.