Gold is known and used since very earlier times. The first metal used for ornamentation and decoration was gold. Gold is also considered as the most precious metal on earth, though the metals of Platinum group can have much higher prices.
Gold is also considered a symbol of purity and royalty showing clarity and cleanness. Its importance and significance can be thought by considering that it was a enormous goal of alchemists to make gold from other substances such as lead, etc. Some mythical substances were thought to be needed in order to achieve this goal but, this could never happen.
Gold is an element and chemists call it "Aurum", with its chemical name. Since very early times, the gold is considered and seen as the most precious thing on Earth.
The karat or carat is a measure to check the purity of an alloy. The spelling Karat is used in America and Canada for the measure of purity of gold and Carat is used in gemstones.
