Table 1 Mineral contents (%) of the two purple mudstones.
From: Acidic condition accelerates cation release from purple rock in Southwestern China
Rock types | Montmoril-lonite | Illite | Kaolinite | Chlorite | Quartz | Potassium feldspar | Plagio-clase | Calcite | Dolomite |
|---|---|---|---|---|---|---|---|---|---|
J2s | 13 | 21 | 6 | 7 | 41 | 2 | 10 | 0 | 0 |
J3p | 5 | 23 | 0 | 11 | 38 | 1 | 8 | 12 | 2 |
