Mar 17, 2017 TO ENTER. Mineral Processing & Metallurgy Composition35 to 45 per cent, of nickel, the rest chiefly arsenic. In Canada, a deposit of nickel ore occurs between magnesian limestone above and serpentine below.
Nickel is a chemical element with symbol Ni and atomic number 28. It is a silverywhite lustrous Nickel's other important ore minerals include pentlandite and a mixture of Nirich natural silicates known as garnierite. . Radioactive nickel56 is produced by the silicon burning process and later set free in large quantities