gold

GOLD;
Gold the only yellow metal has the chemical symbol Au dervied from the latin word for gold aurum.Gold has twice that denisty of the lead and is also a good conductor of heat and electricity.It is extremely malleable and can be rolled thin enough to allow light the pass through it.It is resistant to most acid attacks and does not oxizide.
Gold has been the ultimate symbol of wealth from earlist civilization to the present spanning some 8000 years.It has been sought after and fought over more than any other human possession.It has histrically been used for jwellery and as a base foa a global monetary reserves.However gold's role as a monetary reserve has been changing over the past few years,with several banks selling their reserves.This is seen as a move to dissociate gold's relation with currencies.Large stocks of gold in the from of bullion coinage and jewllery are still held by banks individual investors hoarders and speculators world wide.Gold has a wide of uses from being used as a cataylst in industrial proccess to medical machinery and dental uses as well as decoratice uses.
Gold usually only occurs in its metallic state.It is commonly associated with sulphide minerals such as pyrite but it does not  form as a seperate  sulphide minerals.Gold is found in a variety of enviroment globally,but generally requires grades in excess of 1gram/tonne 1 part per million to be cconsiderd economic.Economic gold can be found in primary ore deposits as fine disseminations throughout the host rock or as concentration caused by favourable chemical and structural enviroments.South Africa,Australia,Canada and the USA are the world's primary gold producers.......