Minerals
microcline..............................................80%
quartz.....................................................15%
biotite......................................................5%
Physical & mechanical properties
volumetric weight.........................1650 kg/m3
water-absorbtion...........................0,18%
compression strength...................135 - 260 MPa
flexure strength........................... 31 MPa
attritive ability of rock..................0,24 g/cm2
Decorative crushed stone, fraction 10 - 20mm
Gabion stone, fraction 50~ - 120~mm
