Über Bardiglietto
Bardiglietto (DNSA #2076; SC s2520: Bardiglietto Marble, Italy/Massa-Carrara) is a grey to blue-grey marble belonging to the Bardiglio family quarried in the Carrara/Massa-Carrara district, Tuscany, Italy. Quarry sites include Calagio, Gioia, La Plaga, Miseglia, Montedoro, Pescina, Piastrone, and Tarnone -- all within the Massa-Carrara province. "Bardiglietto" designates the lighter, more uniform sub-variety of Bardiglio, distinguished from the heavier Bardiglio Imperiale and Bardiglio Nuvolato grades. Technical data from SC s2520 (attributed to Universita di Pisa - Politecnico di Torino): density 2710-2735 kg/m3, compressive 135 MPa, flexural 23.7 MPa, water absorption 0.18%. Additional aliases include Marmi Bardiglietto Massa, Marmi Bardiglietto Chiaro, Carrara Bardiglietto Marble, and Italian Grey Marble. Acid-sensitive (carbonate marble). Interior and exterior use. Provisional -- DNSA confirmed identity; SC data accepted (medium confidence).