The next months I will build a website about lithophysae, thundereggs, Porhyrkugeln or as I put it: Framed agates!
Kirchhundem – Albaum
370 million years old is the hostrock Quartz-keratophyr! The eggs filling, quartz and faint banded agate, is not very attractive. Nearby is another locality in the Federated state Hessen: Wingeshausen.