Manganese is a metallic mineral that was discovered by a 17th century German chemist named Johann Glauber, though it was not isolated in a pure form until 1774, by Johan Gahn. It was Gahn’s associate, a Swedish chemist, Carl Scheele, who first determined that manganese was an element. Manganese, as a trace mineral element, is found in all forms of life. It is essential to the health and functioning of the human body and mind in many ways.In terms of physical health, the mineral manganese is impo.