Quality index as follows:ProjectTest dataProjectTest dataProportion4.4Fe20-40%Morse intensityT/m36Fe2O32.5-3 T/m3Abradability≤0.04%S0.25%Breakage≤0.05%Dissolves heavily2.5-2.95 T/m3Ferrous content23.85%Other MetalDoes not surpass the national tap water standard