Charcoal Black granite
Country of Origin: U.S.
Density: 2,720 kg/m3
Flexural Strength: 17.68 MPa
Modulus of Rupture: 2,596 lbs/in2
This Stone of the Month is supplied by Coldspring of Cold Spring, MN, from its Platinum NSC 373 Certified quarry in St. Cloud, MN. 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.