Learning eight identification method of ancient COINS _ figurine skills

Core tip: a, see the copper. The ancient copper material has bronze, copper, copper and brass. Ming jiajing ago cast money are generally bronze material, a small amount of copper, copper copper COINS is a liao dynasty, the authenticity. The ancient copper material has bronze, copper, copper and brass. Ming jiajing ago cast money are generally bronze material, a small amount of copper, copper COINS liao dynasty. No copper bronze easy to fracture, fracture surface, and after will rupture surface friction on the stone, copper color is obvious. Brass COINS and tripod for money began in the jiajing of the Ming dynasty, if it is found that the Ming jiajing ago brass COINS or tripod for money, but after the decision is cast. Second, listen to the voice on authenticity. The longer the ancient copper s, calcification, calcification of the copper wire of copper lost after the original, with metallic sound dull, voice is smaller, the longer time. Who found the sound high tip of the ancient copper, without calcification phenomenon, can determine for new fang. Three, smell authenticity. Ancient copper, the longer the oxide, copper oxide, the longer the smaller copper smell. The ancient COINS of all copper smell heavy, all can be judged to be fake. Tripod for four, rust on authenticity. Circulation of the ancient copper stop, improperly stored will rust. Most ancient copper rust layer is thinner, and rust in local money most of the ancient black. The unearthed copper pithead different rust. Pits unearthed copper, rust layer thicker, rust after the copper knock together, have 'FanJin', 'silver', 'blue', 'three generic' phenomenon cannot be copied; Bunkers unearthed copper, general rust layer is thinner, more money face gets red yellow rust; Puddle copper rust is full of BiMian, blackish green color. The rust of the ancient copper is born of outside introversion, experts call it the 'rust', 'stick' rust, I rust is difficult to remove, all rust is easy to get rid of the copper wire, can determine is fake. Five, tongue licking the authenticity. Money with his tongue, authentic taste. If there are sour, bitter, astringent, can determine do rust or a pulp is artificial, surely false. Six or more authenticity. Ancient copper are manual casting in our country, how many there are some differences between each coin. If you find more coin the same, the ancient copper mine, decision is made by modern technology. Seven, boiled or authenticity. Ancient copper rust or green or red, or yellow or blue, strong adhesion. Meet high rust, suspicious of ancient COINS, in boiling water for 20 minutes after the rust, if rust constant is real money not to take off, take off the rust can determine color change is fake. Eight, needle on authenticity. Ancient copper is rust is more hard, use a needle under the hard but not into not stand. If the artificial binder affected with a fake rust, with soft, needle is easy to plunge into, needle to fail. Every needle in rust on the copper wire, can determine is fake.