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Manganese is used to make clear glass, to desulfurize and deoxidize steel in steel production and to reduce the octane rating in gasoline. It also is used as a black-brown pigment in paint and as filler in dry cell batteries. Its alloys help stiffen the aluminum in soft-drink cans, according to Chemicool.Jan 30, 2017

Manganese helps the body form connective tissue, bones, blood clotting factors, and sex hormones. It also plays a role in fat and carbohydrate metabolism, calcium absorption, and blood sugar regulation. Manganese is also necessary for normal brain and nerve function.

Interesting Manganese Facts:

Manganese resembles iron, but with a silver gray color. It is part of the iron group of elements. It oxidizes easily, but does not fuse easily. It rusts in a matter very similar to iron in water.

Manganese is a silver metallic element with an atomic number of 25 and a chemical symbol of Mn. It is not found as an element in nature. It occurs in many minerals such as manganite, sugilite, purpurite, rhodonite, rhodochrosite, and pyrolusite. It is also found in many mineraloids such as psilomelane and wad.

It is gray-white, resembling iron, but is harder and very brittle. The metal is reactive chemically and decomposes slowly in cold water. Manganese is used to form many important alloys.

Manganese is not found as a free element in nature. It is often found in combination with iron. The most important manganese ore is pyrolusite. Manganese is primarily used in iron and steel industry. It is the basic raw material for manufacturing steel alloys.Jul 2, 2017

magnesium (Mg), chemical element, one of the alkaline-earth metals of Group 2 (IIa) of the periodic table, and the lightest structural metal. Its compounds are widely used in construction and medicine, and magnesium is one of the elements essential to all cellular life.

Natural abundance

The main mining areas for manganese are in China, Africa, Australia and Gabon. The metal is obtained by reducing the oxide with sodium, magnesium or aluminium, or by the electrolysis of manganese sulfate. Manganese nodules have been found on the floor of the oceans.

Humans take in about 250–350 milligrams of magnesium each day. We each store about 20 grams in our bodies, mainly in the bones. Magnesium is the eighth most abundant element in the Earth's crust, but does not occur uncombined in nature. It is found in large deposits in minerals such as magnesite and dolomite.