VOA-Sparrow Clinic The VOA-Sparrow Clinic is a collaboration between Volunteers of America and Sparrow Hospital, providing both physical and mental health care to the homeless in the Lansing area. Their location is 430 N Larch in Lansing.
Answers. Best Answer: Proposed to be an element by Carl Wilhelm Scheele in 1774, manganese was discovered by Johan Gottlieb Gahn, a Swedish chemist, by heating the mineral pyrolusite (MnO2) in the presence of charcoal later that year.
Its chemical symbol is Mn and atomic number is 25. It is found in nature and in minerals. It was discovered in 1774 by Johan Gottlieb Gahn, a Swedish chemist. He isolated and discovered this pure element by heating the pyrolusite (MnO 2) mineral in the presence of charcoal.