The agates had been found along the pebbly sides of the Rhine River including those in Netherlands and they had been carried them from the agate bearing basalt beds of Germany. There is quite a diversity of agates found in the river such as those with chalcedony rims, psuedomorphs, moss inclusions, fortification banding and a variety of colors. The common feature among the agates is that they had been river-tumbled with some signs of bleaching on their surfaces.