What is Gold coin?
[[File:Gold-Dukaten-KFJ.jpg|thumb|Austrian gold [[ducat]] depicting [[Franz Joseph I of Austria|Kaiser Franz-Josef]], c. 1910]] [[File:1914 Sydney Half Sovereign - St. George.jpg|upright|thumb|right|1914 half [[sovereign (British coin)|sovereign]] from the [[Sydney]] mint: the St George and the dragon image was often used on British coins]] A '''gold coin''' is a [[coin]] made entirely (or almost entirely) of [[gold]]. Gold has been used since the invention of coins. It is used because gold is an easy metal to use, and because gold is very [[value|valuable]]. So, a person could have a small quantity of gold coins but still buy many things. Gold is also a very [[density|dense]] metal, making gold coins hard to fake. Gold is good for storing coins because it does not [[rust]]. ==History== ===Antiquity=== People have used gold to trade since the [[Bronze Age]]. However, gold coins have only existed since the 6th century BC, in [[Anatolia]] ([[Turkey]]) then in [[Roman Empire]] (''[[aureus]]''). Gold coins were also used in [[China]]. ===Middle Ages=== In the [[Middle Ages]], gold coins were common because of the [[Florin]] and the [[Guilder]], two important gold coins. Coins of the [[ducat]] ware also made. ===Modern History=== Between 1873 and the early 1900s, gold coins were the main way to pay. Countries stopped using gold coins in 1933 because of the [[Great Depression]]. People were collecting and keeping the coins, so there were not enough for the economy to work. Today, many countries make gold coins, but they are for collectors. ==Coin collecting== Many people enjoy [[coin collecting|collecting coins]]. The rarest (most rare) coins are the most expensive. Usually, very few of these coins were made, or they have [[error|mistakes]], or they are very [[old]]. Some countries have made very large coins for collectors. ==Investing== When people want to buy gold as a way to [[investing|store money]], they can buy gold coins. These coins are called ''[[Bullion]] coins''. These coins are usually very [[purity|pu