Egyptian cobalt blue paints and Prussian cobalt oxide necklaces have been dated back to this time ... It is one of only 3 ferromagnetic transition elements along with iron and nickel. As a metal it is ...
Coal, aluminium, cobalt, nickel, copper, zinc by genus/group, description, occurrence, examples of use and good to know.
It is no surprise that investors have called the metal "blue gold ... of this argument is the precarious nature of cobalt's supply. It is an element that occurs nowhere on earth in a "free ...