Authentication using microanalysis and PIXE
These are amorphous materials, resulting from the melting of various minerals, in specific proportions depending on the use of the object, its period and cultural origin.
Then, the expertise of a fragment of the object using scanning electron microscopy allows to detect possible surface treatments (in particular acid attacks to simulate its weathering). Furthermore, the study of the composition of the glass gives indications about its compatibility with the technologies of the presumed period and culture. We can also highlight elements corresponding to modern glass technology.
In parallel, objects for which sampling is not possible, can be studied using PIXE in order to identify the constituent elements of the glass and validate their compatibility with the presumed period and culture.
Glazed materials characterization in archaeology
The scientific analysis of glass and enamel participates, in particular, to manufacturing techniques and trade reconstitutions purposes.
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