Über Silver White
Silver White (BARDEIRAS BRANCO = WHITE SILVER = BRANCO DO VIMIEIRO = BRANCO REI) is a Carboniferous granite quarried at Bardeiras/Arraiolos, Évora district, Alentejo, Portugal. DNSA #4315: Granit, Karbon, Tiefengesteine. Fine-to-medium grained, predominantly directionless. Density 2622 kg/m3, compressive strength 148.7 MPa, flexural strength 15.6 MPa, water absorption 0.34%, thermal expansion 0.67 mm/m/100K. Acid-resistant. Frost-resistant. Polish durable outdoors. Suitable for flooring. Identity note: SC s4819 lists a different stone ('Silver White Marble') from Muğla, Turkey -- a white marble with different properties. This record follows the DNSA Portuguese granite identity.