Table 1: Mineral Composition and content.

Sample Mineral Composition(%)
Clay Mineral Pyrite Quartz Plagioclase Calcite Dolomite
1 67.52 2.51 4.45 3.82 17.50 4.20
2 58.63 1.80 13.90 2.11 20.01 3.55
3 62.28 1.91 10.15 2.01 17.92 5.73
4 55.41 2.13 17.36 2.92 18.73 3.45