Basalt Meal Soil Improver for Clay Soil is exceptionally suitable for improving clay soils. Basalt Meal Soil Improver for Clay Soil is characterised by extraordinarily high electromagnetic values. It reacts with the clay-humus complex, causing the clay to crumble. It breaks the interconnection between clay particles, resulting in a soil that is easier to work and more friable. Furthermore, basalt meal has the positive characteristic of fixing nitrogen, preventing it from leaching quickly. In short, the soil becomes easier to work with and acquires a better structure. It also contains high concentrations of silicon, lime, magnesium, and trace elements that enrich the soil. A 100% natural product made of finely ground basalt, originating from volcanic rock from the Eifel.