Publication details
Aroche (Huelva, Andalucia): a new Neolithic axehead of Alpine jade in the southwest of the Iberian Peninsula
| Authors | |
|---|---|
| Year of publication | 2016 |
| Type | Article in Periodical |
| Magazine / Source | Archaeological and Anthropological Sciences |
| MU Faculty or unit | |
| Citation | |
| Doi | http://dx.doi.org/10.1007/s12520-015-0232-9 |
| Field | Geology and mineralogy |
| Keywords | Jadeitite-omphacitite; Alpine jade polished axehead; MontViso; Andalucía SWSpain; Neolithic exchanges; Variscite |
| Description | The discovery of a Neolithic Alpine jade axehead in Aroche, in the southwest of Spain, revives the question of longdistance exchange between the Iberian Peninsula and the rest of Europe. This polished blade belongs to a typological model quite characteristic of Alpine production during the second half of the 5th millennium B.C. Different mineralogical approaches (macroscopic features examination, specific gravity, direct XRD, non-destructive micro-XRF spectroscopy, optical stereomicroscopy, magnetic susceptibility determination and microprobe analysis) have identified the rock as an omphacitic jadeitite (mixed jade) with some tiny garnets and a weak retromorphosis. This analysis and the comparison of the rock structure with the referential JADE of Alpine natural jade samples, as well as the extraction modalities and shaping of the axe, provide strong arguments to assign the Aroche axe to a production of Mont Viso: the origin of thousands of axes that circulated in Europe between Ireland and Sicily. The Aroche axe, discovered not far from the variscite mines of Encinasola, could be considered as part of a possible exchange system between the Iberian Peninsula and the Gulf of Morbihan, in Brittany. |