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Minerals
6,131 minerals
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Iimoriite-(Y) | Y₂[SiO₄][CO₃] | Triclinic | — | — |
| Ikaite | CaCO₃·6H₂O | Monoclinic | — | — |
| Ikorskyite | KMn³⁺(Si₄O₁₀)·3H₂O | Monoclinic | — | — |
| Ikranite | (Na,H₃O)₁₅(Ca,Mn²⁺)₆Fe³⁺₂Zr₃[(H₀-₃Si₃O₉)₂(Si₉O₂₇)₂SiO]Cl·nH₂O | Trigonal | 5.0 | — |
| Ikunolite | Bi₄S₃ | Trigonal | — | — |
| Ilesite | (Mn,Zn,Fe)SO₄·4H₂O | Monoclinic | — | — |
| Ilinskite | (Na,K)Cu₅(SeO₃)₂O₂Cl₃ | Orthorhombic | 1.5 | — |
| Ilirneyite | Mg₀.₅ZnMn³⁺(Te₄+O₃)₃·4.5H₂O | Hexagonal | — | — |
| Ilmajokite-(Ce) | (Na,Ce,Ba)₂TiSi₃O₅(OH)₁₀·29H₂O | Monoclinic | — | — |
| Ilmenite | Fe²⁺Ti⁴⁺O₃ | Trigonal | 5.5 | 4.72 g/cm³ |
| Ilsemannite | Mo₃O₈·nH₂O (?) | — | — | — |
| Iltisite | HgAgSCl | Hexagonal | — | — |
| Ilvaite | CaFe³⁺Fe²⁺₂(Si₂O₇)O(OH) | Orthorhombic | — | — |
| Ilyukhinite | (H₃O,Na)₁₄Ca₆Mn₂Zr₃Si₂₆O₇₂(OH)₂·3H₂O | Trigonal | — | — |
| Ilímaussite-(Ce) | — | Hexagonal | — | — |
| Imandrite | Na₁₂Ca₃Fe³⁺₂(Si₆O₁₈)₂ | Orthorhombic | — | — |
| Imayoshiite | Ca₃Al(CO₃)[B(OH)₄](OH)₆·12H₂O | Hexagonal | — | — |
| Imhofite | Tl₅.₈As₁₅.₄S₂₆ | — | — | — |
| Imiterite | Ag₂HgS₂ | Monoclinic | 2.5 | — |
| Imogolite | Al₂SiO₃(OH)₄ | — | — | — |
| Inaglyite | Cu₃Pb(Ir,Pt)₈S₁₆ | — | — | — |
| Incomsartorite | Tl₆Pb₁₄₄As₂₄₆S₅₁₆ | Monoclinic | — | — |
| Inderborite | CaMg[B₃O₃(OH)₅]₂(H₂O)₄·2H₂O | Monoclinic | — | — |
| Inderite | MgB₃O₃(OH)₅·5H₂O | Monoclinic | — | — |
| Indialite | Mg₂Al₃(AlSi₅O₁₈) | Hexagonal | — | 2.42 g/cm³ |
| Indigirite | Mg₂Al₂(CO₃)₄(OH)₂·15H₂O | — | — | — |
| Indite | FeIn₂S₄ | Cubic | — | — |
| Indium (native) | In | Tetragonal | — | — |
| Inesite | Ca₂(Mn,Fe)₇Si₁₀O₂₈(OH)₂·5H₂O | Triclinic | — | — |
| Ingersonite | Ca₃Mn²⁺Sb₅+₄O₁₄ | Trigonal | — | — |
| Ingodite | Bi₂TeS | — | — | — |
| Innelite | Ba₄Ti₂Na(NaCa)Ti(Si₂O₇)₂[(SO₄)(PO₄)]O₂[O(OH)] | Triclinic | — | — |
| Innsbruckite | Mn₃₃(Si₂O₅)₁₄(OH)₃₈ | Monoclinic | — | — |
| Insizwaite | Pt(Bi,Sb)₂ | Cubic | — | — |
| Interliveingite | AgPb₁₈As₂₅S₅₆ | Monoclinic | — | — |
| Intersilite | Na₆Mn²⁺Ti[Si₁₀O₂₄(OH)](OH)₃·4H₂O | — | — | — |
| Inyoite | CaB₃O₃(OH)₅(H₂O)₃·H₂O | Monoclinic | 2.0 | — |
| Iodargyrite | AgI | Hexagonal | — | 5.81 g/cm³ |
| Iodine (native) | I₂ | Orthorhombic | — | — |
| Iowaite | Mg₆Fe³⁺₂(OH)₁₆Cl₂·4H₂O | Hexagonal | 1.5 | 2.10 g/cm³ |
| Iquiqueite | K₃Na₄Mg(CrO₄)B₂₄O₃₉(OH)·12H₂O | Hexagonal | — | — |
| Iranite | — | Triclinic | — | — |
| Iraqite-(La) | KCa₂(La,Ce,Th)Si₈O₂₀ | Tetragonal | — | — |
| Irarsite | IrAsS | Cubic | — | — |
| Irhtemite | Ca₄Mg(AsO₄)₂(HAsO₄)₂·4H₂O | Monoclinic | — | — |
| Iridarsenite | (Ir,Ru)As₂ | Monoclinic | — | 10.90 g/cm³ |
| Iridium (native) | Ir | Cubic | — | — |
| Iriginite | (UO₂)Mo₂O₇·3H₂O | Orthorhombic | — | — |
| Irinarassite | Ca₃Sn₂(SiAl₂)O₁₂ | Cubic | — | — |
| Irtyshite | Na₂(Ta,Nb)₄O₁₁ | Hexagonal | — | — |
| Iseite | Mn₂Mo₃O₈ | Hexagonal | — | — |
| Ishiharaite | (Cu,Ga,Fe,In,Zn)S | Cubic | — | — |
| Ishikawaite | (U,Fe,Y)NbO₄ | Monoclinic | — | — |
| Isoclasite | Ca₂(PO₄)(OH)·2H₂O | Monoclinic | — | — |
| Isocubanite | CuFe₂S₃ | Cubic | 3.5 | — |
| Isoferroplatinum | Pt₃Fe | Cubic | — | 18.07 g/cm³ |
| Isokite | CaMg(PO₄)F | — | — | — |
| Isolueshite | NaNbO₃ | Cubic | 5.5 | 4.47 g/cm³ |
| Isomertieite | Pd₁₁Sb₂As₂ | Cubic | — | — |
| Isovite | (Cr,Fe)₂₃C₆ | Cubic | — | — |
| Isselite | Cu₆(SO₄)(OH)₁₀(H₂O)₄·H₂O | Orthorhombic | — | — |
| Itelmenite | Na₄Mg₃Cu₃(SO₄)₈ | Orthorhombic | — | — |
| Itoigawaite | SrAl₂Si₂O₇(OH)₂·H₂O | Orthorhombic | — | — |
| Itoite | Pb₃Ge₄+(SO₄)₂O₂(OH)₂ | Orthorhombic | — | 6.67 g/cm³ |
| Itsiite | Ba₂Ca(BSi₂O₇)₂ | Tetragonal | — | 3.51 g/cm³ |
| Ivanyukite-Cu | Cu[Ti₄O₂(OH)₂(SiO₄)₃]·7H₂O | Cubic | — | — |
| Ivanyukite-K | K₂[Ti₄O₂(OH)₂(SiO₄)₃]·9H₂O | Cubic | — | — |
| Ivanyukite-Na | Na₂[Ti₄O₂(OH)₂(SiO₄)₃]·6H₂O | Cubic | — | — |
| Ivsite | Na₃H(SO₄)₂ | Monoclinic | — | 2.47 g/cm³ |
| Iwashiroite-(Y) | Y(Ta,Nb)O₄ | Monoclinic | — | — |
| Iwateite | Na₂BaMn(PO₄)₂ | Trigonal | — | — |
| Ixiolite | (Ta,Mn,Nb)O₂ | Orthorhombic | — | — |
| Ixiolite-(Sc) | (Ta₀.₅Sc₀.₅)O₂ | Orthorhombic | — | — |
| Iyoite | MnCuCl(OH)₃ | Monoclinic | 3.0 | — |
| Izoklakeite | Pb₂₆.₄(Cu,Fe)₂(Sb,Bi)₁₉.₆S₅₇ | — | — | — |
| Jacobsite | Mn²⁺Fe³⁺₂O₄ | Cubic | — | — |
| Jacobsite-Q | — | Tetragonal | — | — |
| Jacquesdietrichite | Cu₂(H₂BO₃)(OH)₃ | Orthorhombic | 2.0 | — |
| Jacutingaite | Pt₂HgSe₃ | Trigonal | — | 10.58 g/cm³ |
| Jadarite | LiNaB₃SiO₇(OH) | Monoclinic | — | 2.37 g/cm³ |