Polianite / Pyrolusite – Eisenkaute Mine, Lautzenbrücken, Bad Marienberg, Westerwald, Germany
 Ex A. Berger, Vienna
 High-gloss, richly decorated, and of the highest quality, this historic display case specimen from the former collection of the famous mineral dealer Anton Berger presents itself. This unique specimen was recovered from the Eisenkaute mine.
 The breathtaking brilliance of the pyrolusite crystals makes this special piece stand out in any display case.
 Aesthetic, historical collector's item in rarely seen quality with old Berger label.