Magnesium borates can be classified in the group of metal borates, not only found in nature but also produced synthetically. Magnesium borates have application areas in anti-wear and friction reducing additives as well as electro-conductive treating agents, due to its remarkable properties. In this study the synthesis of magnesium borates, are studied via microwave method from the starting materials of magnesium chloride hexahydrate (MgCl2.6H2O), dehydrated magnesium chloride (MgCl2), tincalconite (Na2B4O7.5H2O) and boric acid (H3BO3). X-Ray Diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FT-IR) were used for the identification of the products. From the XRD results it is seen that “01-070-1902” coded mcallisterite are formed, with the “01-086-2215” coded unreacted tincalconite.