Kierserite 
An inorganic source of magnesium in the form of magnesium sulphate monohydrate. It typically contains 16% magnesium and 22% sulphur. It is highly soluble and forms the raw material for Epsom salt.
Kierserite
An inorganic source of magnesium in the form of magnesium sulphate monohydrate. It typically contains 16% magnesium and 22% sulphur. It is highly soluble and forms the raw material for Epsom salt.