Attractive and precious metal: gold

Jasmine yellow gold has been a center of attraction for man since ancient times. Method of extracting gold by digging mines from the ground Started in 500 BC. The ancient cultures of the world used gold to make attractive jewelry in Egypt, Indus, Mesopotamia and Sumerian. Gold has become attractive due to its physical quality and attractive color. It is considered a precious asset. There have also been many wars in history for gold. Gold is just as attractive and precious today.

South Africa is the largest producer of gold in the world. At the Precambian Whitwater Strand in South Africa, gold is found in the form of minerals from hundreds of kilometers to depths of three to four kilometers. About 4% of gold is spent on jewelery. The rest of the gold is used in the electronic and ceramic industries.

Gold is an excellent conductor of heat and electricity, it does not corrode. That TP can be made the thinnest layer. Gold wire can be shown to be thinner than any metal. That is why it is useful to make a circuit of electronic equipment. The only downside of gold is that it is extremely soft. Used in industries by obtaining other metals along with gold. Gold is measured in carats. 6 carat means whole gold, 18 carat means 12 parts gold and 3 parts alloy of other metals.

Gold is mostly mined in pure form. There are two types. Lead and pressure. Lead type mines are found with gold stone or silicon rock. Gold particles and fragments are mostly found in pressure type mines. Lead type rocks form a pressure type mass by being washed away by water wear. This process takes thousands of years. The amount of gold extracted from the mine in crude form is refined by crushing and chemically processing it. The process is also very long and expensive.