How to identify the authenticity of the ancient gold ingot

The ingot is saddle-shaped, with curved ends and a waist in the middle, and its shape is very similar to that of the silver collar in the Southern Song Dynasty and the Jin Dynasty. "Yangzhou Yuanbao" was unearthed later, about 14.5 cm long and 3 cm thick. The back is engraved with the Chinese character "Yuanbao".

In the currency history of China, gold and silver were officially called "gold ingots", which began in the Yuan Dynasty. However, as early as the early Tang Dynasty, in the Kaiyuan Bao Tong period, people regarded it as huge and valuable, and read it as "opening an ingot". In the Yuan Dynasty, gold and silver coins were called "gold ingots", which means the treasures of the Yuan Dynasty. Gold is called "gold ingot" and silver ingot is called "silver ingot", which is not only of political significance, but also the common name of gold and silver currency.

In the 13th year of Yuan Dynasty (1276), after the Yuan army destroyed the Southern Song Dynasty, it returned to Yangzhou. Bo Yan, the Prime Minister, ordered the luggage of the troops to be searched, and the money collected was cast into ingots and presented to North Korea. The money seller in charge of this matter made a silver ingot weighing 520 taels according to the example of the silver collar in the Jin Dynasty, and named it "Yangzhou Yuanbao", which was dedicated to the ancestor Kublai Khan.

Extended data

Every country will have a collection market for ancient gold coins, and collectors also need to pay attention to fake and shoddy gold coins. Maintenance of gold coins The order of antioxidant capacity of refined coins is gold, nickel, silver, brass and copper. The oxidation resistance of nickel exceeds that of silver, and copper is the most easily oxidized. Platinum, palladium and aluminum-magnesium alloys are not the mainstream of refined coins, so they do not need to be sorted.

Gold in nature will not react chemically with oxygen and other gases in the air, because the purity of gold coins is not very pure, which contains a small amount of metal components such as silver, so trace oxides often appear on the surface of gold coins, mainly because sulfur in the air combines with silver in gold coins to generate trace sulfides.

Metal oxidation is related to materials and storage. For example, some of the gold ornaments before 1000 years ago are glittering and some are stained, so it is meaningful to discuss the binding and storage methods of coins.

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