Volcanic Minerals - Volcano World | Your World is EruptingGold is alloyed with silver, copper, nickel, palladium, zinc, and titanium to increase its tensile strength. Note: for gold, 1 carat = 1/24 part. Pure gold is 24 carat. World Supply of Gold. Below is a pie diagram of major gold producers. In 1994, 2,296 tonnes of gold was produced.