Formatura
The mold-making process by which the surface of a sculpture is captured in a negative form so that it can be reproduced in another material.
Materials
Calco in gesso
A plaster cast produced from a mold, reproducing the surface of an original sculpture or model.
Forma in negativo
The negative mold that records the inverse surface of a sculpture and receives casting material to produce a positive replica.
Restauro del marmo
The conservation and repair of marble sculpture or architectural stone with the aim of stabilizing material, preserving evidence, and recovering legibility without falsifying the original.
Carbone da tracciatura
Charcoal used on marble as a temporary dark marking surface so compass points and reference marks can be seen clearly during point transfer.
Acido ossalico
Oxalic acid, traditionally used in marble polishing as part of a final surface treatment that develops a bright, reflective finish.
Scelta del blocco di marmo
The selection of a marble block according to dimensions, structure, veining, defects, orientation, color, and suitability for the intended sculpture.
Punta widia
A spiral drill bit tipped with tungsten-carbide hard metal, selected according to the type of stone being drilled.
Smeriglio
An abrasive stone or abrasive medium available in different grades and used to smooth and refine sculpture surfaces during levigatura.
Carta abrasiva
A flexible abrasive sheet used in progressively finer grades to smooth marble surfaces during levigatura.