| Ianthinite | (UO2)·5(UO3)·10(H2O) | |
| Ice | Eis Glace | H2O |
| Idaite | Cu5FeS6 | |
| Iddingsite | MgO.Fe2O3.3SiO2·4(H2O) | |
| Idrialite | Picene Idrialine Curtisite | C22H14 |
| Iimoriite-(Y) | Y2(SiO4)(CO3) | |
| Ikaite | Fundylite (calcite pseudomorphs) Glendonite (calcite pseudomorphs) Thinolite (calcite pseudomorphs) Jarrowite (calcite pseudomorphs) | CaCO3·6(H2O) |
| Ikunolite | Bi4(S,Se)3 | |
| Ilesite | (Mn,Zn,Fe++)SO4·4(H2O) | |
| Ilimaussite-(Ce) | Ba2Na4CeFe+++Nb2Si8O28·5(H2O) | |
| Ilinskite | IMA1996-027 | NaCu5O2(SeO3)2Cl |
| Illite | Gumbelite Hydromica Hydromuscovite | (K,H3O)(Al,Mg,Fe)2(Si,Al)4O10[(OH)2,(H2O)] |
| Ilmajokite | (Na,Ce,La,Ba)2TiSi3O5(OH)10·n(H2O) (?) | |
| Ilmenite | Titanoferrite Titanic Iron Ore Menaccanite | Fe++TiO3 |
| Ilmenorutile | (Ti,Nb,Fe+++)O2 | |
| Ilsemannite | Mo3O8·n(H2O) (?) | |
| Iltisite | IMA1994-031 | HgSAg(Cl,Br) |
| Ilvaite | Breislakite - fiberous Lievrite Yenite | CaFe++2Fe+++Si2O7O(OH) |
| IMA1995-020 | CaB3O4(OH)3 | |
| IMA1996-001 | Cu5(Te++++++O4)2(AsO4)2·2(H2O) | |
| IMA1996-043 | Pb3Sb+++++(SO4)(AsO4)(OH)6·3(H2O) | |
| IMA1997-013 | Ca8Mg(SiO4)4Cl2 | |
| IMA1997-015 | (Na,Ca)5Ca(Ti,Nb)5Si12O34(OH,F)·3(H2O) | |
| IMA1997-029 | Rh17S15 | |
| IMA1997-036 | Ca(Ce,REE)2(CO3)4·(H2O) | |
| IMA1997-040 | (Na,K,Ca)x(Al,Fe,Mg)4(Si,Al)8O20(OH)4·nH2O [x = 0.35, n = 3.54] | |
| IMA1998-004 | Pb32As40S92 | |
| IMA1998-010 | Ca4Al6Si6O24(SO4) | |
| IMA1998-018 | (Na,Ca,Bi)2Ta2O6F | |
| IMA1998-025 | NaCa2Al2(AsO4)[AsO3(OH)](OH)2F4·(H2O) | |
| IMA1998-032 | Cu10(AsO4)4(SO4)(OH)6·8(H2O) | |
| IMA1998-033 | Zn2AlSb(OH)12 | |
| IMA1998-045 | Pb6Sb6S17 | |
| IMA1998-070 | Pb(U++++,U++++++)(Ti,Fe2+,Fe3+)20(O,OH)38 | |
| IMA1999-007 | Ca(H2AsO4)2 | |
| IMA1999-018 | Ca0.2(H2O)2CrS2 | |
| IMA1999-023 | Cu2HgSe2 | |
| IMA1999-027 | Bi(Co,Ni)2(AsO4)2(OH,H2O)2 | |
| IMA1999-028 | Bi(Ni,Co)2(AsO4)2(OH,H2O)2 | |
| IMA1999-035 | SiO2 | |
| IMA1999-045 | Na4(UO2)(CO3)3 | |
| IMA1999-046 | Na15Ca6Fe3Zr3NbSi25O73(O,OH,H2O)3Cl2 | |
| IMA1999-050 | Tourmaline | NaMg3V6(Si6O18)(BO3)3(OH)4 |
| IMA2000-001 | Cu2Fe+++(AsO4)[As+++O2(OH)2]·H2O | |
| IMA2000-004 | Bi(OH)SO4·H2O | |
| IMA2000-005 | Ca2Mn3O2(AsO4)2(CO3)·3H2O | |
| IMA2000-010 | (Na,H3O)15(Ca,Mn,REE)6Fe+++2Zr3([ ],Zr)([ ],Si)Si24O66(O,OH)6Cl·2-3H2O | |
| IMA2000-011 | KCaCu5(AsO4)4[As(OH)2O2]2·H2O | |
| IMA2000-013 | Li(1+3x)Al(4-x)(BSi3)O10(OH)8 [x = 0-0.33] | |
| IMA2000-014 | Pd3Pb2S2 | |
| IMA2000-015 | Na3Sr(La,Ce)FeSi6O17 | |
| IMA2000-016 | (Ti,Fe,Mg,Mn)1-xTi2O5 | |
| IMA2000-017 | Na11Ca9(Fe+++,Fe++)2Zr3Nb[Si25O73](OH,H2O,Cl,O)5 | |
| IMA2000-019 | Cu5(UO2)6(SO4)3(OH)16·14(H2O) | |
| IMA2000-020 | Fe4[AsO3OH]5[AsO2(OH)2]2·20H2O | |
| IMA2000-021 | Ca3(Si,Fe+++,Al)[SO4][B(OH)4](OH,O)6·12H2O | |
| IMA2000-022 | Ca2Mn++Fe+++Si4O12(OH)(H2O)2 | |
| IMA2000-024 | Na2BeSi4O10·4H2O | |
| IMA2000-025 | (Sr,Ca)2Na[Al5Si5O20]·7H2O | |
| IMA2000-026 | (Mn,Li)4(Ta,Sn)4(Ta,Nb)8O32 | |
| IMA2000-027 | Sr4TiTi4Si4O22 | |
| IMA2000-028 | Na27K8Ca12Fe3Zr6Si52O144(O,OH,H2O)6Cl2 | |
| IMA2000-029 | Cu5Cl2(OH)8(H2O)2 | |
| IMA2000-030 | CaMg3(Al5Mg)(Si6O18)(BO3)3(OH)3(OH) | |
| IMA2000-032 | Mg3(PO4)2·22H2O | |
| IMA2000-033 | (Ba,Na,K)(Al,Mg)2(Si,Al)4O10(OH)2 | |
| IMA2000-035 | Na2Ba2FeTiSi2O7(CO3)(OH)3F | |
| IMA2000-037 | Ca19(Al,Mg)13[SiO4]10[Si2O7]4(F,OH)10 | |
| IMA2000-039 | Ca2(C2O4)Cl2·2H2O | |
| IMA2000-040 | Ca19Mn+++(Al,Mn+++)10(Mg,Mn++)2Si18O69(OH)9 | |
| IMA2000-041 | CaCe(Fe+++,Fe++,Al)3[SiO4][Si2O7]O(OH) | |
| IMA2000-044 | Pb1.6Cu1.6Bi6.4S12 | |
| IMA2000-045 | VO(SO4)·3(H2O) | |
| IMA2000-046 | (Na,H3O,K,Sr,Ba)2(Ti,Nb)2[Si4O12](OH,O)2·3H2O | |
| IMA2000-048 | K6Fe24S26(Cl,S) | |
| IMA2000-049 | NaCa2Mg5(Si7Al)O22F2 | |
| IMA2000-050 | KCdCu7O2(SeO3)2Cl9 | |
| IMA2000-051 | Ca2ScSn(Si2O7)(Si2O6OH) | |
| IMA2000-052 | Fe+++3(PO4)2(OH)3·5(H2O) | |
| IMA2001-001 | SmPO4 | |
| IMA2001-002 | Cu17Bi17S35 | |
| IMA2001-004 | CaCu6[(PO4)2(PO3OH)(OH)6]·3(H2O) | |
| IMA2001-005 | PdSe2 | |
| IMA2001-006 | K2Zn(Nb,Ti)4(Si4O12)2(O,OH)4·6H2O | |
| IMA2001-007 | (K,Ba)2Fe(Ti,Nb)4(Si4O12)2(O,OH)4·7H2O | |
| IMA2001-008 | KAlSiO4 | |
| IMA2001-009 | IMA2001-009 | K2(H2O)2(Fe,Mn)[(Nb,Ti)4(Si4O12)2(O,OH)4]·4H2O |
| IMA2001-010 | (Ag3Hg)(V,As)O4 | |
| IMA2001-012 | CsNa6[Be2(Si,Al)18O39F2] | |
| IMA2001-014 | CaSr(Mn+++,Fe+++)2Al[Si3O12](OH) | |
| IMA2001-015 | Cu2.68Pb2.68Bi5.32S12 | |
| IMA2001-016 | Cu1.7Pb1.7Bi6.3S12 | |
| IMA2001-017 | Cu3.4Fe0.6Bi5S10 | |
| IMA2001-022 | Ferribrackebushite | Pb2Fe+++(VO4)2(OH) |
| IMA2001-023 | (Ca,K,Na,Sr,Ba)48[(Ti,Nb,Fe,Mn)12(OH)12Si48O144](F,OH,Cl)14 | |
| IMA2001-024 | CaV3O7 | |
| IMA2001-026 | Ca(Mn+++,Mg,)2(AsO4)2(OH,H2O)2 | |
| IMA2001-027 | (Y,REE)4Cu(CO3)4Cl(OH)5·2(H2O) | |
| IMA2001-028 | (Na,Ca,K)2Ca(Nb,Ti)4(Si4O12)2(O,OH)4·7(H2O) | |
| IMA2001-029 | Cu(CH3COO)2·H2O | |
| IMA2001-030 | CaCu(CH3COO)4·6(H2O) | |
| IMA2001-031 | Pb2Al(PO4)(VO4)(OH) | |
| IMA2001-033 | (Cu,Ag)Pb10Sb12S27(Cl,S)0.6O | |
| IMA2001-034 | (Pb,Sr)(Y,Mn)Fe2(Ti,Fe)18O38 | |
| IMA2001-035 | Hg++Hg+10O4I2(Cl1.16Br0.84)2 | |
| IMA2001-036 | (K,Na)Ca2(Mg,Fe2+)4Al(Si6Al2O22)(Cl,OH)2 | |
| IMA2001-037 | K2Zn(Ti,Nb)4(Si4O12)2(OH,O)4·6-8(H2O) | |
| IMA2001-038 | CaK2Mn(Ti,Nb)4(Si4O12)2(O,OH)4·5(H2O) | |
| IMA2001-039 | NaFe++6Al3(SO4)2(OH)18(H2O)12 | |
| IMA2001-040 | VO(SO4)·5(H2O) | |
| IMA2001-041 | Na15Sr12Zr14Si42B6O138(OH)6·12(H2O) | |
| IMA2001-042 | (La,Ce,Ca)9(Mg,Fe+++)(SiO4)6[SiO3(OH)](OH)3 | |
| IMA2001-043 | Na2KMn2LiV2Si8O24 | |
| IMA2001-044 | Ca2Be4(Fe++,Mn)5(PO4)6(OH)4·6(H2O) | |
| IMA2001-045 | KMn3(AlSi3)O10(OH,F)2 | |
| IMA2001-048 | (Fe,Mg,Zn,Al)6Al14(Ti,Fe)2O30(OH)2 | |
| IMA2001-049 | KNa2Mg2Fe+++2LiSi8O22(OH)2 | |
| IMA2001-050 | (Ca,REE)4(Al,Mg,Fe)4[Si2O7][SiO4]3(O,F,OH)3 | |
| IMA2001-051 | Ca16(Mg,Li, )2[B13O17(OH)12]4Cl6·28(H2O) | |
| IMA2001-052 | CoFe+++2(AsO4)2(OH)2·4(H2O) | |
| IMA2001-053 | (Fe,Mg)S | |
| IMA2001-054 | CaFe+++2(AsO4)2(OH)2 | |
| IMA2001-055 | CaSrAl3(Si2O7)(SiO4)O(OH) | |
| IMA2001-056 | [Mg3(H2O)28](UO2)8(SO4)4O6(OH)2 | |
| IMA2001-057 | Ca6B14O19(SO4)(OH)14·5(H2O) | |
| IMA2001-058 | (Cu0.70 [ ]0.30)(Cd1.68Ca0.32)2Al3(PO4)4F2(H2O,F)2·10(H2O) | |
| IMA2001-059 | (Na,Ca)11Ca4(Si,S,B)14B2O40F2·4(H2O) | |
| IMA2001-060 | (Na,Ba){Na3Ti[Ti2O2Si4O14](OH,F)2} | |
| IMA2001-061 | Pd8Hg3Se9 | |
| IMA2001-062 | (UO2)Bi4(PO4)O4·2(H2O) | |
| IMA2001-063 | K(NaMg2)Si4O10F2 | |
| IMA2001-064 | NaMg6[Si3AlO10](OH,O)8·H2O | |
| IMA2001-065 | (Mg,Fe)7Si8O22(OH)2 | |
| IMA2001-066 | Li2(Fe+++2Fe++3)Si8O22(OH)2 | |
| IMA2001-067 | Li2(Fe+++2Mg3)Si8O22(OH)2 | |
| Imandrite | Na12Ca3Fe+++2Si12O36 | |
| Imgreite | NiTe | |
| Imhofite | Tl6CuAs16S40 | |
| Imiterite | Ag2HgS2 | |
| Imogolite | Grunlingite | Al2SiO3(OH)4 |
| Inaglyite | PbCu3(Ir,Pt)8S16 | |
| Incaite | Pb4Sn4FeSb2S15 | |
| Inderborite | CaMg[B3O3(OH)5]2·6(H2O) | |
| Inderite | MgB3O3(OH)5·5(H2O) | |
| Indialite | Mg2Al4Si5O18 | |
| Indigirite | Mg2Al2(CO3)4(OH)2·15(H2O) | |
| Indite | Fe++In2S4 | |
| Indium | In | |
| Inesite | Agnolite | Ca2Mn7Si10O28(OH)2·5(H2O) |
| Ingersonite | Ca3Mn++Sb+++++4O14 | |
| Ingodite | Bi(S,Te) | |
| Innelite | (Na,Mg,Ca)2(Ba,K)4Ti3(Si2O7)2(SO4)2(OH,F) | |
| Insizwaite | Pt(Bi,Sb)2 | |
| Intersilite | IMA1995-033 | Na6Mn++Ti[Si10O24(OH)](OH)3·4(H2O) |
| Inyoite | Ca2B6O6(OH)10·8(H2O) | |
| Iodargyrite | Iodyrite | AgI |
| Iowaite | Mg4Fe+++(OH)8OCl·2-4(H2O) | |
| Iquiqueite | K3Na4Mg(Cr++++++O4)B24O39(OH)·12(H2O) | |
| Iranite | Pb10Cu(CrO4)6(SiO4)2(F,OH)2 | |
| Iraqite-(La) | Desourdyite Ekanite | K(La,Ce,Th)2(Ca,Na)4(Si,Al)16O40 |
| Irarsite | (Ir,Ru,Rh,Pt)AsS | |
| Irhtemite | Ca4Mg(AsO3OH)2(AsO4)2·4(H2O) | |
| Iridarsenite | (Ir,Ru)As2 | |
| Iridisite | (Ir,Cu,Rh,Ni,Pt)S2 | |
| Iridium | Ruthenosmiridium Platiniridium Osmiridium | (Ir,Os,Ru,Pt) |
| Iriginite | (UO2)(Mo++++++2O7)·3(H2O) | |
| Iron | Fer Eisen | Fe |
| Irtyshite | Na2(Ta,Nb)4O11 | |
| Ishikawaite | (U,Fe,Y,Ca)(Nb,Ta)O4 (?) | |
| Isochalcopyrite | Cu8Fe9S16 | |
| Isoclasite | Ca2(PO4)(OH)·2(H2O) (?) | |
| Isocubanite | CuFe2S3 | |
| Isoferroplatinum | (Pt,Pd)3(Fe,Cu) | |
| Isokite | CaMg(PO4)F | |
| Isolueshite | IMA1995-024 | (Na,La,Ca)(Nb,Ti)O3 |
| Isomertieite | Pd11Sb2As2 | |
| Isovite | IMA1996-039 | (Cr,Fe)23C6 |
| Itoigawaite | IMA1998-034 | SrAl2Si2O7(OH)2·(H2O) |
| Itoite | Pb3Ge(SO4)2O2(OH)2 | |
| Iwakiite | vrendenbergite alpha alpha vrendenbergite | Mn++(Fe+++,Mn+++)2O4 |
| Ixiolite | (Ta,Nb,Sn,Mn++,Fe++)O2 | |
| Izoklakeite | Pb27(Cu,Fe)2(Sb,Bi)19S57 |