In this study, two basic magnetic parameters of materials, namely natural remanent magnetization (NRM) and magnetic susceptibility (km)for a number of sandstones from Zagun Formation (Lower Cambrian), in Fasham and Hashtgerd regions (Alborz mountain range, north Iran) have been investigated. Laboratory studies performed on the cores show that the minimum and maximum NRM of the samples are 0.95 and 2.51 mA/m, both of which belong to the Hashtgerd region.The minimum and maximum magnetic susceptibility of 109 and 174 (µSI) which are related to Hashtgerd and Fasham regions, respectively.According to the results of magnetic and mineralographic studies, ZH2 site in Hashtgerd region has the highest amount of NRM and higher percentage of ferromagnetic minerals and may be more suitable for paleomagnetic studies than other sites.Higher km at Z2 site in the Fasham region may be related to the presence of a larger amount of total ferromagnetic and paramagnetic minerals at this site.