The area around the little township of Nack is a worldwide known location for agates with fine colorization and pattern. But today it is more easily to meet rockhounds from every european nation at the highly visited finding places than to find some fine agates.

A little mining operation (3 qm²) near the famous area “Teufelsrutsch” produced some intensively colored agates with awesome spherulitical formations. Very interesting findings of nodules that are presenting booth “water-level” and fortification-banding could be made before this place was renatured.