TableĀ 1.

Chemical element composition of aggregate samples, normalized on an anhydrous basis

Major elementQuarry 1Quarry 2
SiO260.1460.45
TiO20.800.95
Al2O320.2815.91
Fe2O3*5.219.85
MgO1.592.43
MnO0.070.22
CaO7.615.33
Na2O2.913.34
K2O1.251.35
P2O50.120.18
LOI5.144.49
  • LOI, loss on ignition.

  • * Total iron is calculated as Fe2O3.