Ianthinite
Class : Oxides and hydroxidesSubclass : Uranyl hydroxidesCrystal system : OrthorhombicChemistry : UO25UO3 10H2ORarity : Rare
Size : µm / mm / cm / dm / m
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Idaite
Class : Sulfides and sulfosaltsSubclass : SulfidesCrystal system : HexagonalChemistry : Cu3FeS4Rarity : Uncommon
Iimoriite
Class : SilicatesSubclass : NesosilicatesCrystal system : TriclinicChemistry : Y2(SiO4)(CO3)Rarity : Very rare
Illite
Class : SilicatesSubclass : PhyllosilicatesCrystal system : MonoclinicChemistry : (K,H3O)Al2(Si3Al)O10(H2O,OH)2Rarity : Very common
Ilmenite
Class : Oxides and hydroxidesSubclass : OxidesCrystal system : TrigonalChemistry : FeTiO3Rarity : Very common
Ilmenorutile
Class : Oxides and hydroxidesSubclass : OxidesCrystal system : TetragonalChemistry : (Ti,Nb,Fe)TiO3Rarity : Uncommon
Ilvaite
Class : SilicatesSubclass : SorosilicatesCrystal system : OrthorhombicChemistry : CaFe3OSi2O7(OH)Rarity : Uncommon
Imiterite
Class : Sulfides and sulfosaltsSubclass : SulfidesCrystal system : MonoclinicChemistry : Ag2HgS2Rarity : Very rare
Inderite
Class : Carbonates, nitrates, boratesSubclass : BoratesCrystal system : MonoclinicChemistry : MgB3O3(OH)5 5H2ORarity : Rare
Indialite
Class : SilicatesSubclass : CyclosilicatesCrystal system : HexagonalChemistry : Mg2Al4Si5O18Rarity : Very rare
Inesite
Class : SilicatesSubclass : InosilicatesCrystal system : TriclinicChemistry : Ca2Mn7Si10O28(OH)2 5H2ORarity : Rare
Inyoite
Class : Carbonates, nitrates, boratesSubclass : BoratesCrystal system : MonoclinicChemistry : CaB3O3(OH)5 4H2ORarity : Uncommon to fairly common
Iodargyrite
Class : HalidesSubclass : IodidesCrystal system : HexagonalChemistry : AgIRarity : Rare
Iridosmine
Class : ElementsSubclass : MetalsCrystal system : HexagonalChemistry : Os,IrRarity : Rare
Iriginite
Class : Sulfates, chromates, molybdatesSubclass : Uranyl molybdatesCrystal system : OrthorhombicChemistry : (UO2)(Mo2O7) 3H2ORarity : Rare
Ixiolite
Class : Oxides and hydroxidesSubclass : OxidesCrystal system : MonoclinicChemistry : (Ta,Mn,Nb)O2Rarity : Rare