Grey granite: Tuman / Boltyshskoe

Natural stone characteristics
Commercial name: Tuman Breed: Granite Deposit: Boltyshskoe Volume weight: 2690 kg/m³ Water absorption: 0,20% Compressive strenght: 200 MPa Flexual strenght: 29 MPa Abrasion: 0,23 g/cm² Natural radiation level: 1 class 1 class: for all kind of construction * 2 class: for road improvement & industrial use