Cheap Best Method For Gold Processing From Ores

Baron axel fredrik cronstedt first extracted pure nickel in 1751, but it was known to exist much earlier.Chinese documents from around 1500bc make reference to white copper baitong, which was very likely an alloy of nickel and silver.Fifteenth-century german miners, who believed they could extract copper from nickel ores in saxony, referred to the metal as kupfernickel, the devils.