Grey - Basalt
Quarry Location: Bagnoregio, Bolsena, Provincia di Viterbo, Northern Lazio
Water Absorption: 3.05 %
Density: 2230 kg/m3
Flexural Strength: 13.8 MPa
Compressive Strength: 82.5 - 87.1 MPa
Recommended Usage: Wall and floor applications, countertops, mosaic, fountains, pool and wall capping, stairs, window sills
Finishing Surface: Sawn Cut, Sanded, Rockfaced, Sandblasted, Bushhammered, Tumbled, Thermalled, Natural Cleft, Weatheredge
Additional Names: Basaltina di Bagnoregio Grigia,Basalto di Viterbo Grigio,Grigio Anciano,Grigio Aniciano,Basaltina Bagnoregio Grigio,Basalto Bagnoregio Grigio Basalt,Pietra Aniciano
Petrographic definition: tephra
Massa Unit Volume: 2230 Kg / m3
Water Absorption: 3.05%
Simple Compression Breaking Load: 82.5 MPa
Compression breaking load after freezing: 87.1 MPa
Indirect Tensile Strength by Flexing: 13.8 MPa
Coefficient of relative Abrasion (referred to Granite St. Fedelino): 0.54
Impact resistance: minimum fall height: 25 cm
Coefficient of linear thermal expansion: 5.0 x 10-5 0C-1
Knoop microhardness: 3473 MPa
Index of non-uniformity of hardness: 3.68
Source: Università di Pisa - Politecnico di Torino