**A. Appendices**

Density, permittivity, and permeability, specific heat calculation process after mixing

The density of mixture = <sup>M</sup>*<sup>t</sup> Ma <sup>ρ</sup><sup>a</sup>* <sup>þ</sup>*Mb ρb* M*<sup>t</sup>* = total mass of mixture Ma = mass of component a ρ<sup>a</sup> = density of component a Mb = mass of component b ρ<sup>b</sup> = density of component b ln Ɛ = Viron Ɛiron + Vcoal lnƐcoal Viron = Volume fraction of iron ore Vcoal = Volume fraction of coal lnƐ<sup>0</sup> = Viron Ɛ<sup>0</sup> iron + Vcoal lnƐ<sup>0</sup> coal lnƐ″ = Viron <sup>Ɛ</sup>″iron + Vcoal lnƐ″coal Viron = volume fraction of iron ore Vcoal = volume fraction of coal Cp of mixture = *Ma Mmix Cpa* <sup>+</sup> *Mb Mmix Cpb* Ma = mass of component a Mb = mass of component b *Mmix* = total mass of components a and b *Cpa* = Specific heat of component a *Cpb* = Specific heat of component b
