Brochantite – Ruashi-Katanga, DR Congo
 Ex Anton Berger
 Former P. Pichler Collection, 1968
 A historic collector's item from the Democratic Republic of Congo. Unfortunately, only a label from 1968 remains for this special piece, but a number on the back of the piece suggests a significantly greater age.
 The shiny brochantites are arranged in spherical aggregates, a rather rare crystallization of this mineral, which otherwise usually crystallizes in columnar form.
 This rare collection piece comes from the former inventory of the famous Austrian mineral dealer and collector Anton Berger.
 https://mineralogicalrecord.com/biographies_labels/bergeranton/