Minerals: I

IceH2O
Ilesite(Mn,Zn,Fe,SO4,nH2O)
IlmeniteFeTiO3
IndicoliteNa(Li,Al)3Al6(SiO3)6(BO3)3(OH)4
Insizwaite(Pt,Bi,Sb)
IoliteMg2Al4Si5O18
Iranite(Pb,Cu,CrO4,Silicate,F,OH)
Irarsite(Ir,Ru,Rh,Pt,As,S)
Iridarsenite(Ir,Ru,As)
Isoferroplatinum(Pt, Pd)3(Fe, Cu)