AL-ahliyah gypsum Mh and
α- hemihydrate; Mα and all properties of the
above mineral sources of hydrates calcium
sulphate (3) were shown in (Fig.(1)) which
diagramed the mineral sources of gypsum,
calcium sulphate dehydrate CaSO4. 2H2O ;
Mm and Ms with and without milling
respectively. There are other types of
calcium sulp