Читать книгу Monument Future - Siegfried Siegesmund - Страница 45

Regional metamorphic rock (marble, coarse grain-size). Colour: grey with darker veins. Minerals: calcite, muscovite. Decay morpho-logies: disaggregation, sulphate skin formation. Geology: lenses in the “Dioritico-kinzigitica” formation of the “Ivrea-Verbano Zone”, spread from Valle Strona (Piedmont) to Canton Ticino (Switzerland). Quarry: near the village of Sambughetto (valle Strona, Verbano province). Use: mainly polished slabs for cladding (Palazzo di Giustizia, façades totally coated with this marble). It is worth to note the use of this marble in Naples, very far from the quarry site: Palazzo delle Poste (cladding of the curved façade, G. Vaccaro 1936); Banco di Napoli (cladding of the main hall, M. Piacentini 1940).