Serpentino Classico

Extractive basin called Sasso Corvi. The entrance is along the route Chiesa-Chiareggio, turning right on the Torrente Mallero, through a route within the mining district that ends in the quarry
Petrographic definition: serpentinite
Mass of Unit Volume: 2795 Kg/m3
Water absorption: 0.03%
Simple Compression: tensile strength 242 MPa
Simple compression after freeze-thaw tensile strength: 223 MPa
Elastic modulus tangent: 130,900 MPa
Indirect tensile strength through bending: 61.5 MPa
Relative Abrasion coefficient (referring to s. Fedelino Granite): 0.82
Impact resistance: minimum height of fall: 52 cm
Linear thermal expansion coefficient: 5 x 10-7.3 OV-1
Knoop microhardness: 2443 MPa
Index of non-uniformity of hardness: 3.54