This specimen features tiny, greenish-yellow balls of schumacherite associated with brown pucherite crystals and minute quartz crystals from "Pucher Shaft, Wolfgang Maaßen Mine field, Schneeberg, Erzgebirge District, Saxony, Germany". This is the type locality both for schumacherite and pucherite as well. Both minerals are bismuth vanadates.

Comes with Alex Franz label. He was born in Göttingen in 1906. He was trained in optics at the Technical School in Jena, receiving his Master's Degree in 1929. He then joined his family's optics business in Hannover, managing it with the help of his brother in his early years, and thereafter by himself.
Franz became interested in minerals at an early age, and built a personal collection which unfortunately was lost during the chaos of the war years. Nevertheless, he built up a substantial new mineral collection following the war.
Franz died in Meerbusch, near Düsseldorf, on October 25, 2000. His collection was purchased by the mineral dealer Christian Rewitzer in Furth im Wald, and the specimens were then sold off individually.