During the 15th century miners in Germany found a brown-red ore which they believed to contain copper. They called it Kupfernickel or Devils' Copper because they couldn't recover copper from it. Coins in the USA first used nickel alloyed with copper in 1857. The “nickel” was not made from pure nickel but in 1881, pure… Continue reading Nickle ore – Devil’s Copper
ONAFHANKLIK 