He let people go, and the news said that he would turn the stone into gold. Soon, Mr. Zhang, who was greedy for money, invited the Taoist priest to his home and let him personally demonstrate how to turn stones into gold. I saw the Taoist priest take a piece of silver and throw it into a charcoal basin. A few hours later, the Taoist priest opened the ashes and took out a piece of gold from Huang Chengcheng. Mr. Zhang was overjoyed and gave all the money in his family to the Taoist priest. Unexpectedly, the second time he went to the Taoist priest, the Taoist priest took all the money. Since then, Mr. Zhang has been seriously ill.
It turns out that this is a trick played by Taoist priests with mercury. Mercury is the only liquid metal at room temperature. It can be easily alloyed with almost all common metals, including gold and silver, but excluding iron. These alloys are collectively referred to as amalgam or amalgam. Gold-plated glass bricks in ancient buildings and gold bodhisattvas in ancient temples are all "plated" with gold amalgam. In ancient times, silver-tin amalgam composed of silver, tin and mercury was often used to fill teeth.
Mercury is a silvery white liquid metal at room temperature, commonly known as "mercury". It is easy to evaporate to form mercury vapor and has strong adsorption. It is easy to enter human kidney, liver, brain and other tissues, and the excretion time is slow. The main symptoms are neurological abnormalities and gingivitis. All chemicals containing mercury are harmful to human body.