الجبس أو الجصين ( gypsum ) هو مادة... الجيولوجيا ...
Gypsum or plaster (gypsum) It is a solid substance composed of bihydrate calcium sulfate (CaSO _ 4 • 2 H _ 2 O). One of the materials that are frequently available in the earth is the most common sulfuric metal in nature in one of the mineral form or sedimentary rock, it interferes with the mineral of anhadrite (calcium aqua sulfate) and is present with dolomite, mud, limestone and It is ...