Black - Granite
Quarry Location: Vehkajärvi, Kuru, 1980
Water Absorption: 0.06 %
Density: 2920kg/m3
Flexural Strength: 18.3 MPa
Compressive Strength: 141 MPa
Recommended Usage: Counter tops and bars,Interior wall panels,Water walls and fountains, monuments
Additional Names: Kuru Black Star,Kuru Black,Arctic Black,Black Star,Kurun Musta,Arctic Black Star Granite
Black Star is a fine- and medium-grained, non-foliated black diorite with shades of grey. The light grey, almost white, unsymmetrical patterns are a strong contrast to the black surface, creating a unique surface pattern.Mineralogical composition
Plagioclase:48%
Quartz:5%
Biotite mica:16%
Amphibole (hornblende):23%