Abstract: An absorbing composition containing alumino silicate containing schistose particles having at least partially a layered structure with substantially parallel layers, whereby at least for 30 percent by weight of the alumino silicate containing schistose particles the distance between two structurally adjacent layers is greater than 5 &mgr;m, but less than 100 &mgr;m, wherein at least 25 percent by weight of the alumino silicate containing schistose particles consist of aluminum containing di-octahedric layers, wherein the particles are provided with metallic flakes, whereby these metallic flakes are at least partially bound onto and between two structurally adjacent layers of the alumino silicate containing schistose particles, and in which at least 50 percent by weight of these metallic flakes have a thickness of 2 to 5 &mgr;m, a maximum length or diameter between 6 and 60 &mgr;m, and a specific surface area greater than 100 m2/g.