Ceramics such as alumina, zirconia, and especially magnesia will tolerate the highest temperatures. These sheets are available in various materials such as alumina, zirconia and magnesia. These sheets are available in various materials such as alumina, zirconia, and magnesia. In general these soils are deficient in lime, magnesia, phosphates, nitrogen, humus and potash. He used electrolysis on a mixture of magnesia and mercuric oxide. They have very low percentages of silica but much iron and magnesia. The name magnesium originates from the Greek word for a district in Thessaly called Magnesia. By mass, "pure" steatite is roughly 63.37% silica, 31.88% magnesia, and 4.74% water. With this pile he decomposed sulfate of magnesia (first letter to Abbott, 12 July 1812). Springs acquired names such as Magnesia, Big Iron, and Arsenic. The name "magnet" may come from lodestones found in Magnesia, Anatolia. The name "magnet" may come from lodestones found in Magnesia. The Magnesia and Iron Well remains open in season. Volos is the administrative centre of the Magnesia regional unit. The province of Volos () was one of the provinces of the Magnesia Prefecture.