Gold is the elemental form of chemical element gold (chemical element symbol Au), which is a soft, golden yellow and corrosion-resistant precious metal. Gold is one of rare, precious and high-value metals. In the world, gold is generally measured in ounces. In ancient China, "beam" was a very important metal. It is not only a special currency for reserve and investment, but also an important material for jewelry, electronics, modern communication, aerospace and other departments.

The chemical symbol of gold is Au, and the financial English code is XAU or gold. The name Au comes from a story of Aurora, the goddess of dawn in Roman mythology, which means shining dawn.

Since 20 15, the international gold price has been soaring. In less than a month, the gold price in new york market has been rising from $0/200 per ounce to $ kloc-0/300. Statistics show that since 20 15, the price of gold futures in new york market has increased by 9.3%. [ 1]

physical features

1, color:

When gold melts, the steam released is green; Its gold powder is usually brown when it is melted; If it is cast into thin slices, it can transmit green light.