Sardinia is an island located in the middle of the Mediterranean Sea. Due to its position geologically acquired in the Middle Miocene (around 16 Ma ago), this island had a very strategic position in antiquity, as it was involved into all the trade routes that crossed the Mediterranean Sea; however, it developed original archaeological features up to the Iron Age. During the Final Neolithic, the Ozieri’s Culture developed throughout the Sardinian territory, with diffusion of typically hypogea graves named Domus de Janas. The study was conducted inside the Domus de Janas at Filigosa necropolis, located on a tuffaceous hillside near the village of Macomer in the area of Marghine, Central-Western Sardinia. Tomb 1 dating back to the beginning of the third millennium BC had been excavated by Professor E. Contu in 1965 At the time of first excavation, this tomb showed very particular conditions that had enabled an excellent conservation of several osteological and wooden samples.

This paper focuses on the presence of vivianite deposits on human bones and its origin. For such a mineral to be formed an interaction between phosphate, iron and water has to occur. These findings can be considered the first evidence of such mineral in a Sardinian archaeological site, and one of the most ancient findings of this mineral in Italy, as well as the first evidence observed in prehistoric sites related to a period before the introduction of iron use.

撒丁岛是位于地中海中部的一个岛屿。由于其地理位置在中新世中期（大约16 Ma以前），该岛在古代具有非常重要的战略地位，因为它参与了穿越地中海的所有贸易路线。然而，它发展到铁器时代以前的原始考古特征。在最后的新石器时代，奥齐耶文化在整个撒丁岛领土上得以发展，散布着典型的名为Domus de Janas的hypogea坟墓。该研究在Domus de Janas内部进行Filigosa墓地，位于撒丁岛中西部Marghine地区Macomer村附近的凝灰质山坡上。E. Contu教授于1965年挖掘了可追溯至公元前三千年初期的1号墓。在首次挖掘时，该墓表现出非常特殊的条件，能够很好地保存几个骨科和木制样本。

本文着眼于在人的骨骼上存在的堇青石沉积物及其来源。为了形成这种矿物，必须在磷酸盐，铁和水之间发生相互作用。这些发现可以被认为是撒丁岛考古遗址中这种矿物的最早证据，也是意大利最古老的这种矿物发现之一，也是史前遗址中与使用铁矿之前一段时期有关的最早证据。 。