article: Manganese
links: Half-life (element) Bone Atom Protein Co-factor Phosphor Kidney Metalloprotein Parts per million Permanganate Reverse transcriptase Enzyme Mixture Hypomanganate Plant Manganate List of common elements Alcohol Retrovirus Paint Potassium permanganate Biological process Seawater Pyrolusite Manganese compounds Photosynthesis Ceramic Soil Manganese(IV) oxide Manganese(II) chloride Chloroplast Portland cement Earth's crust