On the basis of mineralogy and geochemistry analysis, the listvenites in east of Iran are divided into three main carbonate, silica-carbonate and silica groups. Magnesite, dolomite, huntite and hydromagnesite are the major minerals in carbonate type. Silica listvenites contain mainly quartz, chalcedony and opal. Silica - carbonate listvenites contain minerals of carbonate and silica listvenites. The common structures in listvenites are vein and brecciaed type and the main textures are open space filling and colloidal. Mass balance consideration in listvenites and their host serpentinized ultramafic show that all the elements are loosed in ultramafic, are gained in listvenites. Nehbandan fault activity in east of Iran, produces suitable conduits for penetrating the meteoric water into deep levels, increase its temperature and solubility and then alteration the ultramafic unit of colored mélange during its path. Hydrothermal fluid flow-up through shear zones and wash the rocks during the path, and then under suitable condition of Eh and pH at the surface or low level open spaces of the earth, deposit its load as different types of listvenites.  

Based on field observation, magnetic data results and chemical analysis of the samples in the Haj - Elyas area northwest of Nehbandan, an iron ore body within the Lower Cretaceous dolomitic limestone, was identified. The intrusion of a Fe-bearing porphyritic diorite into the dolomitic limestone caused the occurrence of iron mineralization in the area. Studies of 750 meters of diamond drill Core logs, indicated that the mineralization occurred at the contact of porphyritic diorite and dolomitic limestone. The ore minerals in this zone are magnetite, hematite and limonite. Gangue minerals are plagioclase, quartz, calcite, dolomite, garnet, clinopyroxene, hornblende, tourmaline, hercynite, serpentine, epidote, pyrite, sphalerite and chalcopyrite. Garnet is more andradite in composition. Magnetite is altered to hematite and limonite in fractures. The average iron grade within mineralized zone is about 70 percent. Copper and zinc show very low grade. Based on mineralogical data, the mineralization at Haj - Elyas is associated with calcic – magnesian skarn type.