The polishing stage that brings marble to a high degree of sheen after the surface has already been properly smoothed.
Lucidatura is the polishing stage of marble finishing. Le voci del marmo describes a traditional method using a damp hemp or jute pad with oxalic acid to bring the marble surface to maximum brilliance.
Lucidatura follows successful levigatura; polishing cannot conceal deep scratches left in earlier stages.
Etymology
From Italian lucidare, “to polish or make bright.”
Sculptor Notes
Gloss is a design decision. Highly polished flesh, drapery, hair, and architectural passages reflect light differently, so selective polishing can organize the visual hierarchy of a sculpture.
References
https://levocidelmarmo.sns.it/scheda_oggetti_relazione.php?denom=lucidatura&id=62