Sample tite | Quartz | Calcite | Feldspar | Hema | Halite | Gypsum |
RB1 RB2 RB3 RB4 | 50 45 44 78 | 20 18 10 10 | - 22 26 - | 10 15 20 - | 12 - - - | 8 - - 12 |