no, because gold is only made of gold from the Periodic Table of the elements, nothing else.
Copper and gold.
You add copper to make rose gold to make it pink!
a gold coin is made up of Gold + Copper having copper in very limited amount. for eg, a 22 carat gold coin consists of 22 parts of gold and 2 parts of copper to make it total to 24 which is the measuring standard.
14 karat gold is 58.33% Gold and more than 40% copper. In other words, to make 14 karat gold you mix gold and copper in the proper percentages.
copper
copper, iron and gold
copper!
Copper have about half of the density of gold. Copper is melted together with gold to make an alloy, which can then be beaten into various patterns. Gold 24 carats refers to the purest (99%) gold. 22 carats (91% gold) and 18 carats (75% gold).
high pitch copper CW004A is use to make electrical items.
Titanium
Copper, aluminum and gold.
because they wanted them to become gold