Stone of the Month: Superior Black granite
This Stone of the Month is supplied by Dakota Granite Co. of Milbank, SD. 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 firstname.lastname@example.org.
Country of Origin: U.S.
Compressive Strength: 26,800 psi
Modulus of Rupture: 2,700 psi
Average Absorption: .14%
Flexural Strength: 2,400 psi
Abrasion Resistance: 28.7 Ha