CONCEPT – GOLD PROPERTIES

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 CONCEPT – GOLD PROPERTIES

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• 79 – The atomic number of gold is 79, which means there are 79 protons in the nucleus of every atom.
• 2808 degrees centigrade - The boiling point of gold is 2808 degrees centigrade.
• 1064 degrees centigrade – Gold melts at 1064 degrees centigrade.
• 31.103 grams– There are just over 31 grams in a troy ounce of gold.
• 1 kg = 85.73 Tolas = 35.27 Ounces
• 400 troy ounces – A “London Good Delivery Bar”, the standard unit of traded gold, is made from 400 troy ounces of gold.
• 37 degrees – The temperature of the human body is 37 degrees centigrade. Gold’s conductivity of heat means that it rapidly reaches body temperature – one of the reasons it has become valued for jewellery.
• 187,200 tonnes – Around 187,200 tonnes of gold has been mined since the beginning of civilisation.
• 1885 – While digging up stones to build a house, Australian miner George Harrison found gold ore near Johannesburg in 1885, beginning the South African gold rush.
• 21 metres cubed – All of the gold ever mined would fit into a crate of 21 metres cubed.
• 49% - Around half of all gold mined today is made into jewellery, which remains the single largest use for gold.
• 49ers – The 40,000 miners who joined the California Gold Rush in 1849 were called “49ers”. Only a very small number of them ever got rich.
• 90% - Over 90 per cent of the world’s gold has been mined since the California Gold Rush.
• 750 parts per 1,000 – Gold is often alloyed with other metals to change its colour and strength. Eighteen karat gold is composed of 750 parts of pure gold per 1,000.
• One ounce of gold can be beaten into a translucent sheet 0.000018 cm thick and covering 9 square metres; or pulled into a wire 80 km (50 miles) long
• 15,000 tonnes – Even at only 10 parts of gold per quadrillion, the world’s oceans are estimated to hold up to 15,000 tonnes of gold.
• 4,600 tonnes – There are 147.3 million ounces – around 4,600 tonnes – of gold stored in the US Bullion Depository at Fort Knox.
• 530,000 bars – The US Federal Reserve holds 6,700 tonnes of gold, in 530,000 gold bars. At its peak in 1973, the Fed stored more than 12,000 tonnes of monetary gold.
• Gold is the material of choice to guarantee reliability of performance.
• It is indispensable in engineering and electronics, and its application as a nanomaterial is offering new solutions to a range of global health and environmental challenges.
• Gold - Conducts electricity, is resistant to corrosion, is exceptionally malleable and ductile, has catalytic properties, is biocompatible, and can be made into Nanogold.

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