Material Index
| Name | Formula | Classifications | Members | Image | Specimens | Lines | Spectra | Techniques | Tags |
|---|---|---|---|---|---|---|---|---|---|
| Indium oxyhydroxide | InOOH | — | — | 0 | 4 | 0 | IR | Hydroxide , Compound | |
| Indium phosphide | InP | — | — | 1 | 1 | 2 | SXES | Compound | |
| Inyoite | CaB3O3(OH)5·4H2O | Minerals containing H2O, Minerals containing OH | — | 0 | 1 | 0 | PL | Hydroxide , Mineral, Hydrated , Borate | |
| Iodargyrite | AgI | — | — | 0 | 1 | 0 | IR | Mineral, Halide | |
| Iridium | Ir | — | — | 1 | 15 | 2 | SXES | Mineral , Metal , Element | |
| Iriginite | (UO2)MoVI2O7·3H2O | Minerals containing H2O, Uranyl molybdate | — | 0 | 3 | 0 | PL | Mineral, Uranyl , Hydrated , Molybdate | |
| Iron | Fe | — | — | 1 | 12 | 2 | SXES | Mineral , Metal , Element | |
| Iron oxide/hydroxide | Fe(O,OH)x | — | Lepidocrocite, Ferrihydrite, Iron(II,III) oxide, Bernalite, Iron(II) hydroxide, Goethite, Iron(II) oxide, Iron(III) oxide, Maghemite, Limonite, Feroxyhyte | 0 | 21 | 4 | EDS, SXES | Group , Informal | |
| Iron(I) phosphide | Fe3P | — | Schreibersite | 1 | 0 | 1 | CL | Synthetic, Compound , Phosphide | |
| Iron(II) hydroxide | Fe(OH)2 | Iron oxide/hydroxide | Amakinite | 0 | 1 | 0 | IR | Hydroxide, Compound | |
| Iron(II,III) oxide | Fe3O4 | Iron oxide/hydroxide | Magnetite | 0 | 2 | 2 | EDS | Compound , Mixed oxide | |
| Iron(III) oxide | Fe2O3 | Iron oxide/hydroxide | Hematite, Luogufengite | 0 | 2 | 2 | EDS, SXES | Simple oxide , Compound | |
| Jadeite | NaAlSi2O6 | Clinopyroxene | — | 2 | 23 | 2 | CL, CL/SEM | Mineral, Aluminosilicate | |
| Jarosite | KFeIII3(SO4)2(OH)6 | Minerals containing OH, Minerals containing SO4 | — | 14 | 6 | 0 | Reflectance | Hydroxide , Mineral, Sulphate | |
| Jimboite | MnII3(BO3)2 | Minerals containing BO3 | — | 0 | 1 | 0 | PL | Mineral, Borate |





