| List I (Soil Colour) | List II (Characteristic compound) | ||
| A. | Black | I. | Organic matter and Iron Oxides |
| B. | Red/Brown/Yellow | II. | Quartz |
| C. | Brown | III. | Titeniferous and magnetite compounds |
| D. | White/Lighter colours | IV. | Iron and manganese oxides |
| List I (Soil Colour) | List II (Characteristic compound) | ||
| A. | Black | I. | Organic matter and Iron Oxides |
| B. | Red/Brown/Yellow | II. | Quartz |
| C. | Brown | III. | Titeniferous and magnetite compounds |
| D. | White/Lighter colours | IV. | Iron and manganese oxides |