Miller Process for Gold Refining Made Simple

Can a simple 19th-century gas process turn impure gold into 99.95% pure gold in just hours? This fast method dominates refining today.

How the Fire Assay Method Is Used to Test Gold Purity

Ancient alchemy meets brutal precision: how a 1,000°C inferno reveals true gold purity with ruthless accuracy you never imagined possible.

The History of Gold Refining and How It Evolved

From toxic mercury to 99.99% purity: ancient treasures, failed alchemists, and the dark secrets behind 5,000 years of gold refining.