Teach you how to identify the authenticity of ancient copper coins

In the Feng Shui industry, real antique copper coins are more popular than ordinary Feng Shui copper coins. The Feng Shui-specific Five Emperors copper coins and Six Emperors copper coins currently on the market are basically antique copper coins. Below Hongda Zhouyi will introduce to you the feng shui effect of ancient copper coins and how to identify the authenticity of ancient copper coins.

The main functions of copper coins in Feng Shui are to ward off evil spirits, ward off evil spirits, gather wealth and attract wealth, etc. In the Feng Shui concept, nature is a combination of tangible things and intangible ideas. The most direct display of nature in front of people is the sky and the earth. The ancients believed that the circle was the shape of the sky and the square was the shape of the earth. The heaven and earth produced all things and naturally produced human beings. The circle symbolizes the Tao of equality, tolerance, and harmony, while the square symbolizes the order of superiority and inferiority, the degree of tightness and tightness, and the distinction between near and far. Humans thrive between heaven and earth, and all behaviors and concepts should follow the laws of heaven and earth. Although the copper coin is small, it contains the principles of heaven and earth. How to identify the authenticity of ancient coins? Hongda Zhouyi summarized the ten most effective identification methods: 1. Listen to the sound of ancient copper coins to determine the authenticity

The older the ancient copper coins are, the more serious the calcification will be. After calcification, the copper coins lose the original sound of copper and are hit with metal. The sound is dull, and the lower the sound, the longer it takes. Any antique copper coin with a high-pitched sound indicates that there is no calcification and can be judged to be a new imitation. 2. Determine the authenticity of ancient copper coins by looking at their copper quality

The materials of ancient copper coins include bronze, white copper, red copper and brass. Before the Jiajing period of the Ming Dynasty, the materials for coins were generally bronze, with a small amount of white copper, and there were more red copper coins in the Liao Dynasty. Bronze is easy to break, and the fracture surface has no copper color. However, after rubbing the fracture surface on a stone, the copper color will appear. Brass coins and copper-carved mother coins began in the Jiajing period of the Ming Dynasty. If brass coins or copper-carved mother coins are found before the Jiajing period of the Ming Dynasty, it can be determined that they were minted later. 3. Smell the smell of antique copper coins to determine their authenticity.

The longer the antique copper coins are oxidized, the more serious the oxidation will be. The longer the copper coins are oxidized, the smaller the copper smell will be. Any ancient coins with a strong copper smell can be judged as fakes.

4. Lick the bronze coin with your tongue to determine its authenticity.

Licking the surface of the bronze coin with your tongue will reveal that the genuine coin has no taste. If there is sourness, bitterness, or astringency, it can be judged to be artificially rusted or pulped, and it must be fake. 5. Check the authenticity of ancient copper coins by looking at their rust color

Ancient copper coins will rust if they are not stored properly after they stop being circulated. The rust layer of ancient copper coins handed down from ancient times is thin, and the rust is localized, and most of the money surface is ancient black. The copper coins unearthed from the pits have different rust colors. The rust layer of copper coins unearthed from earth pits is generally thicker. When the copper coins rusted together are opened, they will appear "golden", "silver" and "bluish". The "three blooms" cannot be imitated. The rust layer of unearthed copper coins is generally thin, with red and yellow rust mostly appearing on the coin surface; puddle copper coins are covered with rust on the coin surface and appear dark green. The rust of ancient copper coins occurs from the inside out. Experts call it "rust" or "bone-sticking rust". Real rust is difficult to remove. Copper coins whose rust is easy to remove can be judged to be fakes. 6. Prick ancient copper coins with a needle to determine their authenticity

The real rust of ancient copper coins is relatively hard. If you prick it hard with a needle, it will not penetrate or stand up. If it is artificial rust made with adhesive, it is soft and can be easily inserted with a needle, and the needle will stand upright without falling over. Any copper coin whose needle stands on the rust can be judged to be a fake. 7. Boil ancient copper coins to determine their authenticity

The rust on ancient copper coins is either green, red, yellow or blue, and has strong adhesion. If you encounter ancient coins with a suspicious rust color, boil them in boiling water for 20 minutes and check the rust color. If the rust color does not change, it is a real coin. If the rust color changes, it can be judged to be a fake. 8. Compare ancient copper coins to determine authenticity

my country’s ancient copper coins are all hand-cast, and there are some differences between each ancient copper coin. If multiple coins are found to be exactly the same, it can be determined to be the work of modern craftsmanship. 9. Weigh antique copper coins to determine their authenticity

Antique copper coins will feel light when weighed by hand, because real money has a low density after calcification and oxidation. Counterfeit coins recast from new copper have high density and specific gravity. Most of the ancient copper coins that have a pressed feel can be judged to be newly minted. 10. Determine the authenticity by looking at the size and weight of ancient copper coins.

The size and weight of ancient copper coins vary widely. It is difficult to explain the regulations, but from the universal analysis, we can also understand the general rules.

For example, most of the "ban liang" in the Warring States period are about 3.2 cm in diameter and weigh 5.4-7.4 grams; most of the "ban liang" in the Qin Dynasty are 2.5-2.8 cm in diameter and weigh about 3-6 grams; the "five baht" in the Han Dynasty Most of the diameters of "Kaiyuan Tongbao" in the Tang Dynasty are about 2.4-2.6 cm and weigh between 3.2-3.6 grams; most of the "Kaiyuan Tongbao" in the Tang Dynasty are between 2.4-2.5 cm in diameter and weigh about 3.8-4.2 grams; most Xiaoping coins in the Song Dynasty have a diameter of 2.4-2.5 centimeters and weighs about 3.4-4.2 grams. "Half Liang" coins whose diameter exceeds 4 centimeters are all fakes. Xiaoping coins that are overweight and oversized are rare and genuine.