Gold: A Beginner's Guide

http://lois-jewellery.com Gold: A Beginner's Guide AU 79 Is the symbol for gold is the atomic number of gold Characteristics Some Random Facts Gold is the most malleable of all metals Small traces of gold have been found in eucalyptus trees Human bodies contain 0.02 mgs of gold, most of it in the blood. It can easily be dissolved into mercury It is a good conductor of heat, electricity and reflects infrared radiation Olympic Gold Medals contain 1.34% of gold. Production The top 5 gold mining countřies (as of 2013) All the gold ever mined is thought to total 165,000 tonnes. China Australia USA Russia Peru South Africa has been the Source of a large proportion of the world's gold supply since 1880 Applications of gold Jewellery Monetary exchange Medicine Pure gold is very soft, and so it is Usually alloyed with base metal in jewellery Most famously, gold has been used as a form of money. from as far back as 600BC. Gold injections have also been used to relieve swelling in the treatment of arthritis Today, gold is used in restorative dentistry, for crowns and fillings. However, by the time of the 1970s, the system of converting currency directly into gold was being abandoned by world governments, with the United States refusing to redeem its money in gold. Investment Food Gold is the most popular investment, with it often being sold off in times of economic downturn. Gold leaf is Used in some gourmet foods. Gold has the E number 175