Abstract This work focuses on the study of ten Grosso Romanino, a silver medieval coin, minted in Rome during the 13th century CE. As the coinage of this denomination occurred during a tumultuous period of the history of Rome, the official documentation from Mint was lost. For this reason, archaeometric investigations were necessary to have an overall knowledge of the Grosso Romanino. This work represents the first attempt of archaeometric study performed on this interesting denomination. The coins were characterized by a combination of non-destructive techniques, i.e., X-ray diffraction (XRD), Scanning Electron Microscopy (SEM-EDAX), micro-Raman spectroscopy and Voltammetry of Microparticles (VIMP), aiming to investigate the external surface and its microstructure and to explore the nature of the alloy and corrosion products. The results show an Ag- rich alloy with minor amount of copper (2.1–3.1 wt%), lead (0.7–3.2 wt%) and other elements. Moreover, the rare corrosion products on the surfaces indicate the presence of a random distributed patina composed by oxides, sulfides and chlorides.

中文翻译：

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无损技术在十枚罗马银币锈蚀研究中的应用：以中世纪格罗索罗马尼诺银币为例

摘要 这项工作重点研究了 13 世纪在罗马铸造的 10 枚 Grosso Romanino，这是一种中世纪的银币。由于这种面额的铸币发生在罗马历史的动荡时期，铸币厂的官方文件丢失了。出于这个原因，考古调查对于全面了解格罗索罗姆尼诺人是必要的。这项工作代表了对这个有趣的面额进行的考古学研究的第一次尝试。这些硬币的特征是结合无损技术，即 X 射线衍射 (XRD)、扫描电子显微镜 (SEM-EDAX)、显微拉曼光谱和微粒伏安法 (VIMP)，旨在研究外表面及其显微组织，探索合金和腐蚀产物的性质。结果显示出一种含有少量铜（2.1-3.1 wt%）、铅（0.7-3.2 wt%）和其他元素的富银合金。此外，表面上罕见的腐蚀产物表明存在由氧化物、硫化物和氯化物组成的随机分布的铜锈。