How do you identify the emerald ABC with your naked eyes?

Source: Internet
Author: User

The King of jadeite, especially in the Chinese world, is even more proud to possess and wear jadeite. Because of the large sales volume in the jadeite market, goods B and goods C on the market are too float, fake goods are full, and prices are chaotic, so that too many consumers are deceived by buying low-end jadeite at high prices, as a result, the consumer's purchase confidence is greatly reduced.

What is jadeite ABC?

A goods: the raw materials and finished products of jadeite are all genuine products. There is no artificial fake, genuine goods, meaning that the structure of the crystal surface is not damaged during processing, and the color is natural and not changed.

Goods B: the bottom of the gray and black, dirty, poor water, but green and color of the Middle and Lower jadeite raw materials or finished products, with chemical agents (acid) to the jadeite material bleaching, in addition to impurities, filled with resin (the surface cracks are obvious and the resin luster is displayed ).

C goods: Dyeing with chemical dyes, the color is green, red, purple, yellow, etc. (the color is not natural ).

How to identify jadeite products A, B, and C with the naked eye

1. check the surface gloss of the jadeite: we need to determine whether the jadeite is processed. First, we need to view the luster of its surface. The Jadeite is the brightest among the many jadeite, carefully observe the polished jadeite with the naked eye. The finished glass surface is oily. When the finished product is turned, the reflective points on the surface are quickly moved, crystal clear and flexible. A goods jadeite table mask glass luster; after treatment B goods jadeite with wax resin luster. The main reason is: A goods jadeite itself after polishing the display of the gloss is the glass luster; and B goods jadeite first with acid bleaching and then filled with glue after polishing the display is the resin luster.
2. Use a 10-fold magnifier or microscope to zoom in and observe: the surface of goods a Jadeite is very smooth, and the surface of goods B Jadeite is treated with cracks similar to chicken feet. The main reason is: Goods A jadeite itself does not bubble acid, after polishing shows the surface is very smooth; and goods B jadeite first with acid bleaching and then glue filling, the surface will show the phenomenon of acid etching.
3. Percussion test: This test mainly uses bracelets. We lifted the bracelet with a thin rope and knocked on the bracelet with an agate rod. If the sound was crisp and ECHO, it would be a goods. If the sound was stuffy, It Would Be B goods. The main reason is: Goods A jadeite itself does not bubble acid, the crystal structure is relatively tight, so the sound is clear, and goods B jadeite first with acid bleaching and then glue, its structure is relatively loose, so the sound is short.
4. view the diiomethane specific gravity liquid: We can use the diiomethane specific gravity liquid with a specific gravity of 3.32, put the jadeite into the specific gravity liquid, if the sinking is a goods, if the floating, then B goods. The main reason is: A goods jadeite itself does not bubble acid, the crystal structure is relatively tight, the proportion is 3.34, greater than the proportion of liquid 3.32, so will sink; B goods jadeite first with acid bleaching and then glue filling, its structure is relatively loose, the proportion is less than 3.32, so it will rise.
5. Pen Lamp repair method: this is the easiest way to identify dyed jadeite (c goods. Dyed C-goods jadeite refers to the jadeite colored manually. The dyeing method is generally to remove impurities from the coarse jadeite with a colorless or ⒔ y structure, and then conduct Low Temperature Baking to expand the gap between minerals, and then put it into the dye for immersion, make the dye penetrate into the gap between minerals along the crack of the jadeite, and finally the jadeite is colored. Currently, there are four types of jadeite that are dyed on the market: pale purple, green, expanded, and green. We use a pen lamp to take a look at the jadeite. If we see the interspace between the crystal and the crystal, colored materials are gathered, and the spider mesh is displayed, it can be determined that the jadeite is stained.

6. observe the emerald root color pulse: we observe the emerald with a magnifier of 10 times. The color pulse of the jadeite is natural and complete, and no color pulse rupture is found. If it is B goods, the color root or color pulse of some jadeite may break unnaturally. The main reason is: A goods of jadeite itself does not bubble acid, the jadeite contains white or black block mineral collection package (dirty color) is not pickled; B goods jadeite first with acid bleaching and then filling the glue, the dirty color pickling off, so it will show the color root color pulse broken phenomenon.

Add a few more points to easily identify the natural jadeite A goods or manually processed goods B and goods C:

(1) first observe whether there are any impurities. Because the jadeite is naturally formed in nature, if it is a goods jadeite, there will inevitably be some impurities, such as black, yellow or gray color, and there are very few impurities in the processed goods, it was corroded by strong acid.

(2) Check the color root. The so-called color root refers to a little or a little deeper green in the Emerald ornaments. These colors are a little darker green and gradually become a relatively shallow green. The color and bottom of the natural jadeite products are naturally generous, and the green products are like the root of the tree or flake distribution, with clear and clear outlines. The treatment of goods B emerald root fuzzy, unclear, between the color and the bottom as the Chinese Painting paste, visible spots, black spots or fragments floating. Most of them are displayed in gray or green beans.

(3) shine. A goods luster is generally strong glass luster. B goods luster dim, generally looks as wax light or resin luster, the surface and the superficial is more transparent, the more to the internal become turbid unclear.

(4) view the surface. With a high magnification, a goods surface smooth and delicate, it can be seen that different mineral particles due to hardness differences on the surface of the presentation of fine concave and convex grain and grain handover lines. Poor texture a goods, due to poor polishing caused by the groove is usually only appear in a local position, especially not easy to polish the concave. The surface of goods B is disorganized, and the lines are bent and different. The branches and troughs are displayed. The surface shows orange structure due to hardness differences. Processing strong goods B, the surface of the crack.

(5) Look at the Cui nature. The so-called cuteness is a structure in which fiber crystals and spotted crystals are intertwined. It can be seen that star-like, needle-like, or flake flash surfaces, also known as fly wings, are a very important feature of jadeite, it is also an important indicator for the identification of true and false jadeite. However, goods a and goods B cannot be used as evidence for identification, depending on the situation. Under normal circumstances, a is very green. Goods B is damaged in the processing process and the Cui nature is vague. However, if the degree of acid treatment is slight, the Cui nature can still be seen, and it is very obvious.

(6) color. We mainly observe from two aspects: first, c goods are cleverly colored, and do not add a colorless place, while adding a thick color in the colored place leads to an illusion that it is easy to be cheated; the second is the feeling at first glance. Artificial coloring is different from natural colors after all. If you look at it at first glance, the color of the emerald will not naturally attract attention.

(7) touch. Natural jadeite A goods touch sense for cold glass texture. The processed jadeite products B and C are oily.

(8) Listen. When a collision between a and a of natural jadeite products, the sound is clear and pleasant, with Echo. The sound of goods B colliding with each other seems dull.

 

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