Rhodium gold is a very precious rare metal. Black gold is mainly distributed in South Africa, but its mining amount is low, only 25 tons of black gold can be mined every year. Because of its rarity, the market price is more expensive, even higher than the price of gold. Many luxury goods will contain black gold, which is very popular with nobles. Black gold has the characteristics of high temperature resistance and can effectively remove nitrogen oxides from automobile exhaust. Black diamond is a single-layer pot bottom, which does not contain any chemical harmful components and has fast heat conduction, which can greatly reduce the oil smoke in the kitchen when cooking, and will not burst when it is dry. At the same time, it also has the advantages of high temperature resistance, oxidation resistance, acid resistance and alkali resistance.

Globally, only about 25 tons of black gold are mined every year. Things are scarce, and the market price of black gold is usually above 5,000 pounds/ounce, which is much higher than the price of gold. Many luxury goods usually contain black gold, such as "the most expensive pen in the world" or "the most expensive game board in the world". The royal jewels worn by the Queen of England are also plated with black gold.

Things are scarce, and the market price of black gold is usually above 5,000 pounds/ounce, which is much higher than the price of gold. Many luxury goods usually contain black gold, such as "the most expensive pen in the world" or "the most expensive game board in the world". The royal jewels worn by the Queen of England are also plated with black gold.

Gold is a simple form of chemical element gold (Au), which is a soft, golden yellow and corrosion-resistant precious metal. Gold is a rarer, more precious and more valuable metal. Generally speaking, the gold in the world is in ounces. In ancient China, gold was measured in ounces, which was a very important metal. It is not only a special currency for reserve and investment, but also an important material for jewelry industry, electronics industry, modern communication and aerospace industry. 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.