The speciation of cobalt and nickel at mine waste dump ...
29/10/2014 · Cobalt (Co) and nickel (Ni) are members of the iron family or the ferrides which have similar behaviour from environmental point of view (Rankama and Sahama 1949).They are the 33th and 24th most abundant elements in the Earth's crust, respectively (Cempel and Nikel 2006; Hamilton 1994).Cobalt is often found in association with nickel, silver, lead, copper and iron ores and occurs in .