Nickel

In nature, nickel is found in the Earth's crust, 99 ppm, in minerals such as pyrrhostite, pentlandite, garnierite, niccolite and millerite [7]. The isotopes found in nature are ⁵⁸Ni (68.27 %, stable), ⁶⁰Ni (26.10 %, stable), ⁶¹Ni (1.13 %, stable), ⁶²Ni (3.59 %, stable) and ⁶⁴Ni (0.91 %, stable) [6].

In pure solid form, nickel exist in face-centered cubic form [7].