Raman investigation of corrosion products on Roman copper-based artefacts

Leila Es Sebar, Leonardo Iannucci, Yuval Goren, Peter Fabian, Emma Angelini, Sabrina Grassini

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


This paper illustrates a case study related to the characterisation of corrosion products present on recently excavated artefacts. The archaeological findings, from the Rakafot 54 site (Beer-Sheva, Israel), consist of 23 coins and a pendant, all dating back to the Roman period. Raman spectroscopy was used to identify the corrosion products that compose the patina covering the objects. To facilitate and support their identification, spectra were then processed using principal components analysis. This chemometric technique allowed the identification of two main compounds, classified as atacamite and clinoatacamite, which formed the main components of the patinas. The results of this investigation can help in assessing the conservation state of artefacts and defining the correct restoration strategy.

Original languageEnglish
Pages (from-to)129-135
Number of pages7
JournalActa IMEKO
Issue number1
StatePublished - 1 Jan 2020


  • Archaeological artefacts
  • Corrosion
  • PCA
  • Raman spectroscopy

ASJC Scopus subject areas

  • Instrumentation
  • Mechanical Engineering
  • Electrical and Electronic Engineering


Dive into the research topics of 'Raman investigation of corrosion products on Roman copper-based artefacts'. Together they form a unique fingerprint.

Cite this