Na2Ca(SO4)2, also known as sodium calcium sulfate, is a chemical compound composed of sodium, calcium, and sulfate ions. It has a molecular formula that indicates it contains two sodium ions, one calcium ion, and two sulfate ions. This compound is often found in mineral form and can be used in various industrial applications, including as a filler in construction materials. In nature, Na2Ca(SO4)2 can occur as a mineral called thenardite, which is a sodium sulfate mineral. It is typically white or colorless and may be used in the production of glass, ceramics, and detergents. Its unique properties make it valuable in both chemical and manufacturing processes.