A dark, densely structured diabase. It is very suitable for monuments and can be used decoratively indoors or outdoors.
Quarried from: Varpaisjärvi, Finland
Age of stone: 2.1 billion years
Technical specifications:
EN 1936 Density 3060 kg/m3
EN 13755 Water absorption 0,1 %
EN1926 Compressive strength 335 MPa, lower expected value 309 MPa
EN12371 Compressive strength, frost resistance 340 MPa
EN12372 Flexural strength 26,1 MPa, lower expected value 24,1 MPa
EN 12371 Flexural strength, frost resistance 24,4 MPa
EN 14157 Abrasion resistance 10,0 mm
EN 13364 Breaking load at dowel hole 3650 N, lower expected value 2659 N
EN 14231 Slip resistance/dry condition 88, wet condition 69
Hardness: 6,2 Mohs
Mineral composition:
Plagioclase 51.3%
Pyroxene 41.3%
Hornblende 4.5%
Ilmenomagnetite 2.4%
Epidote 0.2%
Pyrrhotite 0.2%
Quartz 0.1%
Pyrite < 0.1%
Apatite < 0.1%