White pigment constituted of a mixture of barium sulphate (BaSO₄) and zinc sulphide (ZnS). There are several different types available on the market differentiated for their ZnS contents, which may vary from 15% to 30% (but which at times also reach 50% and beyond) and which are much more valuable the higher this percentage. It is used as a pigment for paints and oil colours, for paper, for linoleum, for white inks, cosmetics, etc.