-- Code of China: G778
-- Country of Origin: Guizhou, China
-- Bulk Density: 3.00G/cm3, no harder than Shanxi Black, but harder than other black stone like Mengolian Black.
-- Water Absorption: 0.08%
-- Compressive Strength: 200MPa
-- Color: pure black, it is similar to shanxi black, with petty white spots, but it won't influent it's pure black appearance.