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This report studied the necessary condition to obtain different phase of synthesized CaCO$_3$ and their corresponding electrical properties. The precipitation with varied reaction temperature was performed, and the structure of product was determined by using x-ray diffraction and scanning electron microscope. The micrograph of derived CaCO$_3$ was observed as rice-grain structure as reaction temperature was raised up to 80$^o$C, while the XRD pattern of 80$^o$C sample was perfectly matched with pure vaterite (JCPDS no.00-024-0030). According to a complex impedance analyzer investigation in the frequency range of 1.0-10$^5$ Hz, a decrease in the electrical conductivity with increasing reaction temperature was observed. Therefore, the results suggested that the purified vaterite CaCO$_3$ which is the most primitive structure can be obtain as reaction temperature is increased up to 80$^o$C. In this study shows that, the electrical properties and phase transition of CaCO$_3$ powder are depend on the reaction temperature.
