Agates from tHammerstein are found only at rare opportunities, as for instance a building of houses. On the fields around Hammerstein there is approximately besides sporadically the possibility of agates to collect. Usually these nodules are extremly weathered or quite small. One of the better places of discovery is field, which however only all rejoicing years is plowed. The agates occurring there are showing usually brownish colours and a complex structure with fine banding.