In connection with the basal tables amygdaloite (almond stone) - occurrence in the Wiegersdorfer valley north Ilfeld stands the occurrence of Netzkater near to Ilfeld. It concerns agate formations in nodular areas also here of basalts, and not over formation in lithophysae or over hydrothermal formed vein agates. Their colouring is brownish-red, red - also yellow and orange. The formation of “Holospherulithes” in a specimen from the collection Helmut Schumann is very interesting.

 Further data to the place of discovery are with pure Haake, “agates collect in Germany, part 1” page 83 - 84 (Bode publishing house, 2000)