Nickel ore, metamorphic rock, Sudbury, Ontario. This piece of ore was displayed in France in 1937. Nickel is a very important metal and is used to make stainless steel and coins.
Nickel ore, metamorphic rock, Sudbury, Ontario. This piece of ore was displayed in France in 1937. Nickel is a very important metal and is used to make stainless steel and coins.
