Identification of agate and chalcedony - agate, chalcedony - Jewelry Industry - Multifunctional Drilling Rig
Agate and chalcedony, according to different colors, patterns can be distinguished from band structure. The agate on the palm of friction, color, shape, smell the same person, shall be authentic.
Identification of bile water agate Agate water tank is especially rare in the Onyx products. Moreover, we should cut and polish agate water tank into the craft, the hardness of 7 cases, should be "water tank" shown just enough, it becomes particularly difficult. Therefore, the water craft in the jade agate gallbladder is particularly valuable.
Agate raw materials as well a small water tank, carving out a valuable craft more difficult, and therefore the market who often or impurities. People on the water much bile agate on "guts" the mere mention of feeling. A water tank is agate, someone asked: true or false? The main water tank agate fake false means: , well carved in agate craft after the preliminary, will cut a part of a readily detectable or breaking open, open hole in the middle of irrigation, and then use the strong adhesive glue, and repair polish polishing, posing real agate water tank. , dried gall water, irrigation holes later plug, plug some of them covered, makes difficult to detect. , accidentally broke the water after gall eagle, and then carved agate jewelry with colored glue, makes easy to see. , on the leakage of bile, inward water seepage through the cracks, water, and then use strong glue into the cracks sealed. False means and worst times, even the experts are not immune fooled. Sometimes, being Turns also false, real Nanbian, mistake really agate water tank as a fake, or even distributors sell their own water tank agate is true are not sure of the situation is some .
A few more simple way, can identify true and false agate water tank. , scan handicraft carving is flawless, even if the carvings do not have a seam, it is difficult to say that is false. , gall bladder wall with fishy water (black) or a crystal lens, usually natural, which is formed when water tank agate traces. , careful observation of 10 times magnifying glass, Office of the knife or the tip of doubt describe as Manao Mo's hardness of 7, the knife hardness of 5 to 5.5, if the false part of the glue bond, the hardness of less than 7, with can describe the knife. , able to do so, please experts, and requested the issuance of certificate of gem identification.
When the following question, on whether it is really agate water tank can be questioned: , gall bladder wall of water without impurities, and have carved signs; , water, water gallbladder bile agate location behaved exactly, whether there is coincidence of water bile; , appearance, non-essential part of the doubt, there are signs of bonding; , compared with the real agate water tank, the price is significantly lower.
Worth mentioning is that even a natural agate water tank of water, it is not and never dry. Agate, after all, is composed of fine quartz mineral aggregates, crystal size is only 0.1 ~ 0.4 micron (1 micron = 0.001 mm), the naked eye is difficult to distinguish. Only in the gall bladder wall as the water layer thick crystal case, to ensure the long-term water tank water will never dry up. However, when a water layer of thin crystal wall lamps, or viewing surface is larger, or "sand guts" gall bladder wall exposed after polishing crystal layer, the water tank along the gap in the water will slowly evaporate. This slow evaporation of water caused by the consumption of products only through the agate long-term immersion in water, infiltration to replenish. In this case, the water tank water tank water in agate is "innate" and or "acquired", and it is difficult to distinguish between the.
Dyed agate identification Agate with natural color, there are artificially colored. There are natural color red, amber and white. Among them, red for the best. Available in the market of blue, purple agate jewelry is not a character is the result of artificially colored, with a few years there will fade.
Agate and chalcedony have skin, there are rough opaque, there are smaller profit, and show mottled. Therefore, agate and chalcedony are generally heat-treated to change color before use. Meanwhile, the natural color is not bright red agate, also need to change color after heat treatment, the brown red, red to bright red sauce. Green Agate heat-treated egg by egg blue to white. Therefore, the agate jewelry made of heat treatment has become a common procedure. For example, divalent iron ions with agate and chalcedony heat treatment method can be used to divalent iron into trivalent iron ions, so that gray to red. Usually will show a gray, light-colored and so is not the beautiful natural variegated agate, dyed red, yellow, green, blue, black and other colors. Agate pastel coloring. At present, the staining agate, the new national standard is not strict, that is acceptable. Because this is agate quality improvement process, so do not specify.
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