In the proximity of the Wüstung Ronnenberg, which lies somewhat southwest of the well-known Backesberg quarry, single finds are possible of vein-agates or red and yellow colored jasper. More uncommon is a brownish variety of jasper.

It is absolutely forbidden to collect any minerals at this place, because this location is a part of the artillery range area. Militarypolice is controling even this abandoned area regulary.