“… Also at the Lache thundereggs up to 30 cm diameters were found. Near the Werner-Hütte today still small Rhyolithkugeln up to 3 cm diameter can be found on the hiking-way - unfortunately nearly without agate in the center…”

…”

written by Patricia Hemmer, in “thundereggs from the Black Forest” - catalog to the international agate-fair 2012