| http://www.w3.org/ns/prov#value | - As with pietra dura, a drawing is transferred to a stone slab upon which it is engraved.Unlike marquetry or pietra dura, which are both inlaid, the liquid scagliola is poured into the engraved hollows in the stone, then left to set.Additional effects, such as veining or different colour variations, are achieved by adding chips of marble, granite, alabaster, porphyry or other stones to the mixture,
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