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.
References. 1  Oskin, B. Vast Bed of Metal Balls Found in Deep Sea. Live Science. 2  Somayajulu, B. L. K. 2000. Growth rates of oceanic manganese nodules: Implications to their genesis, palaeo-earth environment and resource potential. 3  Dean, W. E., W. S. Moore, and K. H. Nealson. 1981. 4  Shcherbov, B. L. and V. D. Strakhovenko. 2006.