The rock and mineral collection at the Free University is even younger than the university itself. It was first developed in the 1950s under the first chair holder K.R. Built several times. Afterwards it grew through discoveries on excursions, gifts and exchanges. In recent years the collection has been significantly expanded through the transfer of three large private collections.

The petrographic and mineralogical collection of the Free University is made up of various sub-collections.

• Training collection (minerals and rocks)
• Mineral specimen collection (in drawers)
• Small mineral collection
• Rock thin section collection
• Evidence collection of igneous and metamorphic rocks (in drawers)
• Mineral display collection
• Rock collection
• “Kröhnke” mineral collection

The collections are located on the FU Geocampus in House C. The display collections are open to the public.

Associated collections at Geocampus are

• The debris collection (House C)
• Display collection of deposit science/submarine deposits (Foyer House B)
• Ore collection (House B; request via AB Geochemistry)
• Paleontological collection (inquiry via AB Paleontology)