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Table 3 Overview of the different compound’s presence on the examined samples

From: Studying a 2 millennia old bronze kettle using easily accessible characterization techniques

Sample 1 2 3 4 5 6
Malachite, Cu2(CO3)(OH)2 H H H L L L
Cassiterite, SnO2 H H H - - L
Calcium carbonate, CaCO3 H H H L - -
Ferric oxide, Fe2O3 L L L H H H
Inorganic sulphates L L L H - -
Sulphate patina - L L - - -
SiO2 L - - - H H
Si-oxides - L L H - -
  1. H high content, L low content