HUNTITE IN EAST OF IRAN.(Occurrence & Origin)

Huntite mineral with formula CaMg3(C03}4 is anatural carbonatic material with rhombohedral system that itscomposition is between dolomite (CaMg(C03h) and magnesite.For the first time Huntite was found in American Nevadaprovince, then in other places i,e. Poland, Hungary, France,Australia, Iran and Greece.According to thermOdynamic, Huntite forms in condition oflow pressure and tcmpreature in the surface or near surface area.Investigation in Iran shows the existence ofHuntite mineralwithin weathered ultramafic rocks. At outer pan of eastern Iran,a great bulk of this rocks in ophiOlitic zone is origineted. Insome of this area outcrop of magnesite is in adjacent withHuntite.