![](https://e3a6770b99.clvaw-cdnwnd.com/1c1a6c32089e839a230daee9816e8acc/200007630-84a2a84a2c/vivianite7873%20%281%29.jpg?ph=e3a6770b99)
New book on Genna Zinc Smelter slags
20/10/2020
Today I received the brandnew photo- and reference book on the minerals of the former Genna Zinc smelter near Letmathe/Iserlohn in Germany. I have quite a collection from there, and the book gives me the opportunity to do a thorough review of the samples I have. Thanks to the authors Ulrich Wagner and Bernd Döhnel, who sent me a signed copy