home / agates worldwide / Europe / Germany / Baden Wuertemberg / Baden - Baden / Klopfengraben

“… In old collections are also agates of theKlopfengraben in brown and blue enclosed, which are partly wheathered - the thunderegg-rim is now missing. ( so-called “hearts” or “Thunderegg cores”)…”

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