Identification Of Stones In Glass (In Italian)

The presence of defects in the final product of the glass manufacturing cycle is not only an aesthetic problem, it may also seriously affect the optical and mechanical properties of the glass and cause considerable economic losses. The identification of the origin of defects allows most suitable corrective measures to be adopted to avoid further occurrences. Among the various analytical techniques developed at the Stazione Sperimentale, is optical microscopy, which represents a quick, though not exhaustive method for the recognition of some of the main defects. In this paper, the more recurrent types of stone in glass observed by optical microscopy are collected and described in the form of a photographic, descriptive catalogue.