1. Durability: Gold is only soluble in aqua regia, mercury, potassium cyanide or sodium cyanide, and other substances cannot corrode it. It is the most inactive and stable metal in the world, and it will not survive thousands of years in the air. Its luster was slightly reduced, so gold products were unearthed and they are still in good condition. u0026n 1. Durability: Gold is only soluble in aqua regia, mercury, potassium cyanide or sodium cyanide, and other substances cannot corrode it. It is the most inactive and stable metal in the world. It has been in the air for thousands of years. It does not reduce its luster a little, so the unearthed gold products are still in good condition. 2. Extensibility: Gold can be molded into any shape, can also be beaten into any shape, and can be beaten into extremely thin gold foil. One gram of gold can be beaten into six squares of gold leaf. One gram of gold can be beaten into six-square-foot gold leaf, which is impossible for any other metal. There are many gold leaf products in ancient Egypt and Syria. 3. Fusion: It can be fused with other low-priced metals to improve its quality, achieving the so-called alloy and karat gold, increasing the hardness, brightness and corrosion resistance of other metals, and increasing its value. Sales are still increasing. 4. High conductivity: gold is almost 100% conductive, and its conductive quality is far from comparable to that of any other metal. Therefore, in addition to its decorative properties, gold is also irreplaceable for its high-quality practicality Therefore, the demand for gold in high-tech fields (such as space, computers, medical equipment, dental dentures) is also increasing day by day. 5. Strong affinity: Gold has a considerable affinity with us. There are especially many stories about gold mines, regardless of the size of California, Jinguashi in Taiwan Province, and Jinchuan in mainland China. Gold is widely loved by all mankind, because although its quantity is small in nature, it can always see people as it is. It is very real. Gold is gold, and it is never false or hidden. As early as six thousand years ago, gold was produced in Arabia, India, Persia, the Caucasus, Asia Minor, the Balkans and many extraordinary places to supply it to the Nubia mining area in Egypt. Nearly a hundred gold mines were discovered in Nubia. In the seventh century BC, the Lybia kings in West Asia began to mint pure gold coins. Previous: The difference between pure gold, K gold, K platinum, platinum, and platinum Next: The pursuit of gorgeous gold jewelry