Non-destructive spectroscopic investigation of artefacts from middle Hallstatt period—case study of a stone bead from Tărtăria I hoard,Romania

A stone bead, part of a necklace found in a middle Hallstatt period—type of settlement—the T?rt?ria site in Alba County, Romania, was investigated following a non-destructive approach, by means of energy-dispersive X-ray fluorescence spectrometry and Fourier transform infrared spectroscopy. The highly heterogenous object, found together with numerous bronze and iron objects, appeared to be a variety of chalcedony rich in iron and copper impurities, still preserving clay minerals from the sedimentary matrix in some of the areas. Organic molecules found at the surface of the stone artefact may indicate the presence of a wax or resin residue, possible evidence of early craft specialization. The non-destructive protocol applied allowed an in-depth characterization of the artefact, providing important information not only on the crystal structure but also on the diagnostic impurities present within this peculiar stone bead.     

Children's imaginaries in the city: on things and materials

The article is an exploration of urban imaginaries emerging through a play with materials. Starting from a complex activist exercise for reimagining the space of a park in decay, whose protagonists are children, we propose a reflection on the productivity and resilience of matter. We argue that a new materialist sociology is one that takes disappearances seriously. Capitalism renders space abstract not only through flow and circulation, but also through stillness. We follow the curious disappearances and reappearances of the park in question, tracing the mutations of urban planning, of the juridical domain and of the everyday use of space. Finally, we analyse the making of a maquette of the park by a group of children and their alliances with activists. The maquette is a political ‘thing': it leads us away from an urban imaginary populated by discrete objects to an urban imaginary of depth and it reconcretises space.