Iron Stain Kit is used to identify iron pigment in tissue sections on the Artisan Link and Artisan Link Pro Staining Systems. Iron is an important component of the human body, especially as a vital constituent of oxygen carrying hemoglobin. Iron is stored in bone marrow, and a loss of iron stores is indicative of anemia. An excess of iron deposited in organs such as liver, spleen, and bone marrow may be a result of hemachromatosis. Ferric deposits: blue, nuclei: red, and the background tissue elements are stained pink. This stain is not recommended for bone marrow smears.