The powder is then melted at above 1,100 degrees Celsius (2,012 degrees Fahrenheit) and cooled again to make gold nuggets, which are then sent off site to be refined to 99.9 percent purity.

In this video, we dive deep into the process of gold extraction, showing you how this precious metal is transformed from deep within the Earth into the shiny ingots and coins we recognize.The ...

This article was originally published with the title “How Gold Lace is Made” in Scientific American Magazine Vol. 13 No. 46 (July 1858), p. 368 doi:10.1038/scientificamerican07241858-368c ...

But where in the universe it was first made has long been a cosmic-scale mystery. For most of the elements we are familiar with – carbon, oxygen, nitrogen – their origins are clear.

But is there any science to show that metals can be turned into gold? In fact, there is — but it would be far from a profitable business, evidence shows.