Corteccia soft quartzite

Country of origin  Brazil

Apparent unit mass  2,866 kg/m3

Imbibition coefficient  0.31%

Simple compression 150 MPa

Flexural strength (dry)  11.4 MPa

Flexural strength (wet)  10.0 MPa

This Stone of the Month is supplied by Antolini of Italy. Technical details provide a frame of reference only. Because stone is a product of nature, testing to determine specific physical qualities should be repeated for each project. To submit your own Stone of the Month, send a high-resolution digital image, along with the relevant technical data, to