The amount of gold inside golden medals in London Olympics is 5.5 grams

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2012London Olympics, which will be distributed through it 4700 gold medal, silver and bronze medals to the winners have been preserved behind iron gates in the Tower of London.
While the weight of medal each in the Olympics course in Beijing in 2008.200 grams is expected to weigh up those that will be in London to 410 grams, containing gold, including a 5.5 grams gold, and the rest is a mixture of silver and copper, so much as the weight of the total metals used in the medals to 8 tons.
The chairman of the organization disclosed the 2012 London Olympics for taking them for two samples of gold medals from the director of “Rio Tinto”, while designed by English artist “David Watkins”.