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.
He found it contained 31% silica, 19% alumina, 12% iron oxide and 38% of an unknown earth. (3) Gadolinâs results were confirmed in 1797 by Swedish chemist Anders Ekeberg. Ekeberg suggested the name yttria for the oxide of the new earth metal and hence the new metal was named yttrium.