The fashion for

At various fairs, markets, shops yes sometimes unscrupulous vendors, not the original minerals or precious metals, and their imitations. Forgery, meanwhile, can be detected only by an expert, but buyer.
Pine TEARS Jewelry Amber (amber - in Russian) loves women. But if you buy - a real rock, not fake. If we draw on the surface of the amber-making is not even a very sharp blade, natural stone will give a fine crumb and a simulation of plastic - curled shavings. If the crumb with a spirit lamp to burn, then this will be a nice amber light pine smell, and forgery - a sharp odor and vapor of smoke, similar to the one that arises from the tires, which burns. There's an easier way to check. In the conventional water sinking amber but saline (8-10 teaspoons of salt in a glass of water) emerges, while the vast majority of counterfeit and remains at the bottom. Of course, with a knife, spirit lamp, a jar of water and a pack of salt on the exhibition or the store does not go away, but if you ask the seller to carry out experiments sita with the product mentioned, I'm sure it will immediately recall - he has a natural stone or artificial.
Look ZUBR! Not to buy fake or "Polonia" jewelry made of precious metal, especially looking at it the stigma of the State Inspectorate assay control. Belarusian hallmark - with a picture of a bison. Under current law, all without exception, jewelry made of gold, platinum and silver, purchased abroad, you need to "zazubryts" in the inspection, and then sell it. Even if the product is on the mark with the Russian "kokoshniks" Ukrainian "trident" or some other foreign sita mark. Stamp with Bison - a sign of conformity of the content of precious metal in jewelry. For example, the number 875 near bison means that 1000 parts of the alloy has 875 pieces of silver. The other elements depending on the type of alloy (nickel, sita copper, sita zinc, chromium or aluminum) are needed for the power of jewelry as well as precious metals in pure form soft, easily deformed and scratched. Not found on the stigma of bison? Better not buy a piece of jewelry because you can pay too much for a cheap thing from red brass (an alloy of zinc and copper), Goldin (copper and aluminum) belzhyki (chromium, nickel, and iron), nickel silver (copper and nickel), nickel silver (copper, zinc and nickel), and other alloys. Albert Bogdasarov, Professor of Geology, Brest.
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