The Probert Encyclopaedia of Rocks & Minerals

SULPHUR

Sulphur (brimstone) is a non-metallic element that occurs either free or in combination with sulphates and sulphides, is a constituent of proteins, exists in several allotropic forms including yellow orthorhombic crystals, resembles oxygen chemically but is less active and more acidic, and is used especially in the chemical and paper industries, in rubber vulcanisation, and in medicine for the treating of skin diseases. It has the symbol S.
Sulphur has been known since ancient times, but was only discovered to be an element in 1809.
Research Sulphur