RECENTLY Powell 1 directed attention to the fact that for calcium sulphate hemihydrate the rate of transition of soluble anhydrite to insoluble anhydrite was greater in the α- than in the β-form.

Saudi-listed United Mining Industries Company has been granted two exploration licenses for gypsum and anhydrite ore from the Ministry of Industry and Mineral Resources. These licenses have been ...

United Mining Industries Co. secured two exploration licenses in Madinah for gypsum and anhydrite ore from the Ministry of Industry and Mineral Resources, according to a Tadawul statement. The two ...