OCCURRENCE

In the earth's crust, gold is found in 3.1 x 10~7%. In nature, it is found in the elemental form. The most important minerals of gold are calavarite (AuTe2) and silvanite (AuAgTe4).

When people discovered the convenience of carrying small coins with them to trade rather than goods to barter, gold was chosen because small pieces could carry relatively high values. This process was disrupted by the first world war, and gold was used less and less as actual currency, overtaken by paper currencies.

Golden ring Gold is used in microchips

USES

Because of the chemical stability of gold, it is used in technology, to coat metals to prevent their corrosion, and fill teeth. As a good conductor, it is used in transistors and in connections of electrical circuits.

Every year tons gold areused in the production of jewellery. Gold is a valuable element, and is used as a money transfer between banks and treasuries.