Gold is found earlier and use of human metal. Because it is rare, special and precious metal since ancient times been regarded as the first, the "king of metals" in the title, the enjoyment of other Xiamen unmatched reputation, and its prominent position of almost eternal. It is precisely because element gold  has the 'aristocratic "status, a period of time was a symbol of wealth and luxury, use it for financial reserves, currency, jewelry and so on. So far the gold in the above-mentioned field of application is still dominant.  http://goldteeths.blogspot.com/2008/11/element-gold.html

With the development of society, gold teeth economic status and applications are constantly changing. It functions in the decline in the currency in the field of industrial and high-tech applications in gradually expanding.  http://goldteeths.blogspot.com

The main demand for gold and use has three main categories:

1, used as international reserves. This is determined by the monetary gold merchandise attribute decision. Gold because of the excellent characteristics, gold history to act as the monetary functions, such as measure of value, liquidity, storage means, means of payment and the world currency. With the socio-economic development, gold has quit circulation. Twenty-first century since the 70s after the decoupling of gold and the U.S. dollar, gold's monetary functions also weakened, but still maintain a certain monetary functions. At present, many countries, including major Western country in international reserves, gold still play a rather important position.

2, used as decorative jewelry. Ornate gold jewelry has always been a person's social status and wealth symbol.  http://goldteeths.blogspot.com/2008/11/gold-history.html

3, in industry and science and technology applications. Because gold has a unique perfect character, which are any kind of metal do not have, and it is highly corrosion-resistant stability; good conductivity and thermal conductivity; gold nuclei with a larger capture Medium Effective cross-section; of infrared reflectivity close to 100%; in the gold alloy catalyst with a variety of nature; gold still a good process, and easily processed into ultra-thin gold foil, gold and powder-micron; gold is easily to other plating metals and ceramics and glass surface, under pressure from a certain gold easily be welded and welding forging; payment can be made with organic superconductors payment. It is precisely because there are so many useful properties, it has reason to the most widely used in modern high-tech industries in the go, such as electronic technology, communications technology, aerospace technology, chemical technology, medical technology.