Physical & Mechanical Properties
Volumetric weight:
2628-2853 kg/m3
Water absorbtion:
0.1-0.5 %
Compression strength:
64.1-151.6 MPa
Flexure strength:
Attritive ability of rock:
0.11-1.46 g/cm2
.
Minerals (%)
Plagioclase(labrador):
40-96.7
Potash feldspar: 
2
Ore minerals: 
0.5-34