Watch a video of this specimen by following the Vimeo link below: https://vimeo.com/958879269 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 remarkable specimen of the rare zinc phosphate species spencerite, from the type-locality and type-discovery in 1919 in Hudson Bay mine, Ontario! This discovery was reported in "The University of Toronto studies - Geological series No.10: Mineralogy of the H.B. Mine, Salmo, B.C. by T.L.Walker 1919. It describes the discovery of a large cave full of spencerite." The species was named after Leonard James Spencer (19870-1959), Keeper of Minerals, British Museum of Natural History (London).