Salem district. The various rock types encountered within this limestone deposit are pegmatites near Sankagiri Clay/Shale (2.65) whereas in greyish-white limestone about 68.4% of calcite 0.33%According to XRD result or dolomite thus making the low grade limestone suitable for cement manufacture.3. Study method Selected samples of the Wadatta limestone were collected during a field trip that lasted for several weeks. These samples were analyzed for chemical composition. The samples were pulverized to -150 mesh screen. The powdered samples were placed in labeled sample bottles with a cap and stored until required for use.Two types occur in nature
