Saturday, October 29, 2011

History of gold

Gold artifacts  appear from the 4th millennium BC Although the price of some platinum group metals can be much higher, gold has long been considered the most desirable of precious metals, and its value has been used as the standard for many currencies in history. Gold has been used as a symbol for purity, value, royalty, and particularly roles that combine these properties. Gold as a sign of wealth and prestige .On that imaginary island, gold is so abundant that it is used to make chains for slaves, tableware and lavatory-seats.There is an age-old tradition of biting gold to test its authenticity. Although this is certainly not a professional way of examining gold, the bite test should score the gold because gold is a soft metal, as indicated by its score on the Mohs' scale of mineralhardness. The purer the gold the easier it should be to mark it, 75% of all gold ever produced has been extracted since 1910. It has been estimated that all gold ever refined would form a single cube 20 m.In medieval times, gold was often seen as beneficial for the health, in the belief that something that rare and beautiful could not be anything but healthy. Even some modern esotericists and forms of alternative medicine assign metallic gold a healing power. The first use of gold as money occurred around 700 B.C. Their symbol for gold was the circle with a point at its center , which was also the symbol and the ancient Chinese character for the Sun. For modern creation of artificial gold by neutron capture,During the 19 th century, gold rushes occurred whenever large gold deposits were discovered. The first documented discovery of gold in the United States was at the Reed Gold Mine. The first major gold strike in the United States occurred in a small north Georgia town called Dahlonega. Because of its historically high value, much of the gold mined throughout history is still in circulation in one form or another.

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