Watch a video of this specimen by following the Vimeo link below: https://vimeo.com/958876809 Ex. Les Fils d'Émile Deyrolle (Paris, 1896-1950's). Comes with the typical Deyrolle box and old label. In June last year, Alain Martaud and I acquired parts of an old family collection in Marseille, gathered up between the late XIXth century and the 1960's by successive generations of collectors (probably city dignitaries). This collection featured hundreds of specimens that were exclusively purchased from Deyrolle, a prominent Parisian naturalist dealer in this period, and had been kept stored in their original box until today, carefully sorted in several custom-made wooden mineral drawer cabinets. The specimens by themselves date back from the early XIXth century up to the first half of the XXth century and consist mostly in European and American classics, as well as rare species and systematics ore samples. Here is a nice old classic: quartz with ferrugineous inclusions from Felsenmeer! Felsenmeer is an old iron mine in Hemer. These former quarries were mined from the 9th century until 1871 for iron ore. In these quartz, spectacular inclusions of fossil fungi mycel and strands of bacteria covered by yellowtan iron oxides in iron stromatolites can be found. The mineralization occured in Karst cavities in Devonian Massenkalk (formations with large masses of limestone, mostly reef limestone). See also: Erdmannsdörfer, O.H. (1908) Zeitschrift der Deutschen Geologischen Gesellschaft Band 60, 32-35