With the hot collection, more and more friends now like to collect some things like jewels and coins, and people often overlook the fact that many of the so-called collections are worthy of counterfeiting or counterfeit. Today we Let's talk about the common sense of amber. Let me first say that the English name of amber is Amber, from the Latin Ambrum, which means "the essence." There is also a saying that it comes from the Arabic Anbar, which means "glue" because the Spaniards will call amber in the underground and amber. Hardness 2-3, density 1.1-1.16g/cm3. Slightly brittle, no cleavage, with a shell-like fracture. Amber is an organic substance that softens when heated to 150 ° C and melts at 250 ° C to 300 ° C to give off an aromatic rosin odor. In ancient China, the emperors and grandparents regarded amber as auspicious and meaningful; newborns can be safely evaded and squandered for a lifetime; newcomers wear her yonghe youth couple and happiness, because people think that amber is For this reason, the Buddhist community also regards amber as a sacred object. (one of the seven treasures of Buddhism). Today we will give you a brief introduction on how to identify synthetic resin and natural amber. Salt water experiment This experiment is the main method of identification. Due to the light specific gravity of natural amber, it should float on the water in 1 (salt): 4 (water) brine. As shown in the figure below, the standard 1:4 salt water is calm in the clear water. When the salt is added, some of the experimental products float up. Fire test This experiment is not destructive, and its main purpose is to smell. I only burned the stuff that floated up in the last salt test. The fire is used in the ordinary lighter, the stay time is 4-5 seconds, and each of the upper and lower frames is a group. It can be clearly seen from the figure that the coca-broiled fat of Colombia and the natural amber powder are left behind. Obvious traces, similar to broken rice. I can't show it with the taste, just describe it: two pieces of the Baltic Sea - a slightly thick and loose smelly road, Liaoning, China - rosin mixed with charcoal, Dominican - very light fragrance, amber powder Press-fit--mix the chemical flavor of the pine flavor. After the polished natural amber beads are fired for 4-5 seconds, the surface will become deeper but there is no hole-like peeling feeling (I can think of a better description of my modification). Electrostatic test This experiment was not based on the first two experiments. The results of the experiment showed that all the materials used had electrostatic reactions. This experiment can only distinguish the glass, because the glass usually has no static electricity after rubbing. Washing water (ether test) The cheapest manicure lotion is used, which is sold in many places. The first few experiments of rosin in this experiment forgot to take pictures: P except the first vertical row is all three groups, the first one is painted, the second one is staying, and the third one is completely evaporated. Colombian coba and rosin are apparently slow to volatilize, and they are clearly sticky at the point of hand rubbing and can leave fingerprints. Ultraviolet radiation Take the UV test machine and try it out, so only the flat ones participated. Polished natural, amber powder pressed, coba and rosin have discoloration, the plastic has a slight change on the top, the synthesis does not basically change color. Specific gravity test The density of amber is between 1.05-1.10, so in the salt water of 1:4, the authentic product will float, and the product will sink. 7 Sound test: Amber beads without inlays are gently moved in the hands, which will be very soft and slightly dull. Sound, if the sound of plastic or resin is crisper. Hardness Testing When you gently slant the amber back with a needle at a 20-30 degree angle (the position you think will not harm the amber), you will feel a slight violent sensation and very fine powder residue. If it is a plastic or other substance with different hardness, it is either stuck or sticky or even stuck in. Eye observation This is a trick to identify true and false amber; true amber texture, color depth, transparency, refractive index, etc. will change with observation angle and illuminance. This feeling is not found in any other substance. Just as we identify true and false people, such as superb artists can create a vivid figure of the wax, "just to the real thing" is just to talk about, even the best wax can not escape our eyes. Amber is transparent but very moist, not as unobstructed as glass, crystal, or diamond. Fake amber is either very transparent or opaque, with a color that is dead and fake. The artificial interior of the fake amber is very glaring, and it will feel a cold and chilly light. Kitchen Curtain,Cheap Kitchen Curtains,Printed Kitchen Curtain ,kitchen curtain designs SHAOXING MAIRUI IMPORT AND EXPORT CO., LTD , https://www.sxmairui.com