Cabrerite
Class : Phosphates, arsenates, vanadatesSubclass : Hydrated arsenatesCrystal system : MonoclinicChemistry : Ni3(AsO4)2 8H2ORarity : Rare
Size : µm / mm / cm / dm / m
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Cacoxenite
Class : Phosphates, arsenates, vanadatesSubclass : Hydrated phosphatesCrystal system : HexagonalChemistry : Fe24AlO6(PO4)17(OH)12 75H2ORarity : Quite common
Cafarsite
Class : Oxides and hydroxidesSubclass : ArsenitesCrystal system : CubicChemistry : Ca8(Ti,Fe,Mn)6-7(AsO3)12 4H2ORarity : Very rare
Calaverite
Class : Sulfides and sulfosaltsSubclass : TelluridesCrystal system : MonoclinicChemistry : AuTe2Rarity : Rare
Chalcedony
Class : SilicatesSubclass : TectosilicatesCrystal system : TrigonalChemistry : SiO2Rarity : Very common
Calcite
Class : Carbonates, nitrates, borates, iodatesSubclass : Anhydrous carbonatesCrystal system : TrigonalChemistry : CaCO3Rarity : Very common
Calcurmolite
Class : Sulfates, chromates, molybdatesSubclass : Uranyl molybdatesCrystal system : MonoclinicChemistry : Ca(UO2)3(MoO4)3(OH)2 11H2ORarity : Very rare
Caledonite
Class : Sulfates, chromates, molybdatesSubclass : Anhydrous sulfatesCrystal system : OrthorhombicChemistry : Pb5Cu2(CO3)(SO4)3(OH)6Rarity : Rare
Calomel
Class : HalidesSubclass : ChloridesCrystal system : TetragonalChemistry : HgClRarity : Rare
Campylite
Class : Phosphates, arsenates, vanadatesSubclass : Anhydrous phosphatesCrystal system : HexagonalChemistry : Pb5(PO4)3ClRarity : Common
Canavesite
Class : Carbonates, nitrates, boratesSubclass : BoratesCrystal system : MonoclinicChemistry : Mg2(CO3)(HBO3) 5H2ORarity : Very rare
Cancrinite
Class : SilicatesSubclass : TectosilicatesCrystal system : HexagonalChemistry : Na6Ca2Al6Si6O24(CO3)2Rarity : Uncommon
Carletonite
Class : SilicatesSubclass : PhyllosilicatesCrystal system : TetragonalChemistry : KNa4Ca4Si8O18(CO3)4(OH,F) H2ORarity : Very rare
Carminite
Class : Phosphates, arsenates, vanadatesSubclass : Anhydrous arsenatesCrystal system : OrthorhombicChemistry : PbFe2(AsO4)2(OH)2Rarity : Uncommon
Carnallite
Class : HalidesSubclass : ChloridesCrystal system : OrthorhombicChemistry : KMgCl3 6H2ORarity : Quite common
Carnotite
Class : Phosphates, arsenates, vanadatesSubclass : Uranyl vanadatesCrystal system : MonoclinicChemistry : K2(UO2)2(VO4)2 3H2ORarity : Quite common
Carpholite
Class : SilicatesSubclass : InosilicatesCrystal system : OrthorhombicChemistry : MnAl2Si2O6(OH)4Rarity : Rare
Carrollite
Class : Sulfides and sulfosaltsSubclass : SulfidesCrystal system : CubicChemistry : Co2CuS4Rarity : Rare
Cassiterite
Class : Oxides and hydroxidesSubclass : OxidesCrystal system : TetragonalChemistry : SnO2Rarity : Common
Catapleiite
Class : SilicatesSubclass : CyclosilicatesCrystal system : MonoclinicChemistry : Na2ZrSi3O9 2H2ORarity : Uncommon
Cattierite
Class : Sulfides and sulfosaltsSubclass : SulfidesCrystal system : CubicChemistry : CoS2Rarity : Very rare
Cavansite
Class : SilicatesSubclass : PhyllosilicatesCrystal system : OrthorhombicChemistry : Ca(VO)Si4O10 4H2ORarity : Very rare
Celadonite
Class : SilicatesSubclass : PhyllosilicatesCrystal system : MonoclinicChemistry : K(Mg,Fe)2Si4O10(OH)2Rarity : Quite common
Celestite
Class : Sulfates, chromates, molybdatesSubclass : Anhydrous sulfatesCrystal system : OrthorhombicChemistry : SrSO4Rarity : Common
Celsian
Class : SilicatesSubclass : TectosilicatesCrystal system : MonoclinicChemistry : BaAl2Si2O8Rarity : Uncommon
Cerite
Class : SilicatesSubclass : NesosilicatesCrystal system : TrigonalChemistry : Ce9(Mg,Fe)(SiO4)6(SiO3OH)(OH)3Rarity : Uncommon
Ceruleite
Class : Phosphates, arsenates, vanadatesSubclass : Hydrated arsenatesCrystal system : TriclinicChemistry : Cu2Al7(AsO4)4(OH)13 12H2ORarity : Very rare
Cerussite
Class : Carbonates, nitrates, boratesSubclass : Anhydrous carbonatesCrystal system : OrthorhombicChemistry : PbCO3Rarity : Common
Cervantite
Class : Oxides and hydroxidesSubclass : OxidesCrystal system : OrthorhombicChemistry : Sb2O4Rarity : Uncommon
Chabazite
Class : SilicatesSubclass : TectosilicatesCrystal system : TriclinicChemistry : CaAl2Si4O12Rarity : Common
Chalcanthite
Class : Sulfates, chromates, molybdatesSubclass : Hydrated sulfatesCrystal system : TriclinicChemistry : CuSO2 5H2ORarity : Common
Chalcoalumite
Class : Sulfates, chromates, molybdatesSubclass : Hydrated sulfatesCrystal system : MonoclinicChemistry : CuAl4SO4(OH)12 3H2ORarity : Rare to uncommon
Chalcocite
Class : Sulfides and sulfosaltsSubclass : SulfidesCrystal system : MonoclinicChemistry : Cu2SRarity : Common
Chalcomenite
Class : Oxides and hydroxidesSubclass : SelenitesCrystal system : OrthorhombicChemistry : CuSeO3 2H2ORarity : Rare
Chalcophanite
Class : Oxides and hydroxidesSubclass : Hydroxides and hydratesCrystal system : TrigonalChemistry : ZnMn3O7 3H2ORarity : Quite common
Chalcophyllite
Class : Phosphates, arsenates, vanadatesSubclass : Hydrated arsenatesCrystal system : TrigonalChemistry : Cu18Al2(AsO4)4(SO4)3(OH)24 36H2ORarity : Uncommon to rare
Chalcopyrite
Class : Sulfides and sulfosaltsSubclass : SulfidesCrystal system : TetragonalChemistry : CuFeS2Rarity : Very common
Chalcosiderite
Class : Phosphates, arsenates, vanadatesSubclass : Hydrated phosphatesCrystal system : TriclinicChemistry : CuFe6(PO4)4(OH)8 4H2ORarity : Very rare
Chalcostibite
Class : Sulfides and sulfosaltsSubclass : SulfosaltsCrystal system : OrthorhombicChemistry : CuSbS2Rarity : Uncommon to rare
Chamosite
Class : SilicatesSubclass : PhyllosilicatesCrystal system : MonoclinicChemistry : (Fe,Mg)5Al(Si3Al)O10 (OH,O)8Rarity : Common
Charoite
Class : SilicatesSubclass : InosilicatesCrystal system : MonoclinicChemistry : K5Ca8(Si6O15)2(Si2O7)Si4O9(OH) 3(H2O)Rarity : Rare
Chenevixite
Class : Phosphates, arsenates, vanadatesSubclass : Hydrated arsenatesCrystal system : MonoclinicChemistry : Cu2Fe2(AsO4)2(OH)4 H2ORarity : Quite common
Chernovite
Class : Phosphates, arsenates, vanadatesSubclass : Anhydrous arsenatesCrystal system : TetragonalChemistry : YAsO4Rarity : Very rare
Chervetite
Class : Phosphates, arsenates, vanadatesSubclass : Anhydrous vanadatesCrystal system : MonoclinicChemistry : Pb2V2O7Rarity : Very rare
Childrenite
Class : Phosphates, arsenates, vanadatesSubclass : Anhydrous phosphatesCrystal system : OrthorhombicChemistry : FeAl(PO4)(OH)2 H2ORarity : Quite common
Chillagite
Class : Sulfates, chromates, molybdatesSubclass : MolybdatesCrystal system : TetragonalChemistry : PbMoO4Rarity : Very rare
Chlorargyrite
Class : HalidesSubclass : ChloridesCrystal system : CubicChemistry : AgClRarity : Uncommon
Chlorite
Class : SilicatesSubclass : PhyllosilicatesCrystal system : MonoclinicChemistry : A5-6Si4O10(OH)8Rarity : Very rare
Chloritoid
Class : SilicatesSubclass : NesosilicatesCrystal system : MonoclinicChemistry : Fe2Al4Si2O10(OH)4Rarity : Rare
Chondrodite
Class : SilicatesSubclass : NesosilicatesCrystal system : MonoclinicChemistry : Mg5(SiO4)2 (F,OH)2Rarity : Uncommon
Chromite
Class : Oxides and hydroxidesSubclass : OxidesCrystal system : CubicChemistry : FeCr2O4Rarity : Common
Chrysoberyl
Class : Oxides and hydroxidesSubclass : OxidesCrystal system : OrthorhombicChemistry : BeAl2O4Rarity : Uncommon
Chrysocolla
Class : SilicatesSubclass : PhyllosilicatesCrystal system : OrthorhombicChemistry : CuSiO3 2H2ORarity : Common
Cinnabar
Class : Sulfides and sulfosaltsSubclass : SulfidesCrystal system : TrigonalChemistry : HgSRarity : Quite common
Citrine
Class : SilicatesSubclass : TectosilicatesCrystal system : TrigonalChemistry : SiO2Rarity : Very rare
Claringbullite
Class : HalidesSubclass : OxychloridesCrystal system : HexagonalChemistry : Cu4Cl(OH)7Rarity : Very rare
Clausthalite
Class : Sulfides and sulfosaltsSubclass : SelenidesCrystal system : CubicChemistry : PbSeRarity : Rare
Clinochlore
Class : SilicatesSubclass : PhyllosilicatesCrystal system : MonoclinicChemistry : Mg5Al(Si3Al)O10(OH)8Rarity : Very common
Clinoclase
Class : Phosphates, arsenates, vanadatesSubclass : Anhydrous arsenatesCrystal system : MonoclinicChemistry : Cu3(AsO4)(OH)3Rarity : Uncommon
Clinoenstatite
Class : SilicatesSubclass : InosilicatesCrystal system : MonoclinicChemistry : MgSiO3Rarity : Rare
Clinoferrosilite
Class : SilicatesSubclass : InosilicatesCrystal system : MonoclinicChemistry : FeSiO3Rarity : Very rare
Clinohumite
Class : SilicatesSubclass : NesosilicatesCrystal system : MonoclinicChemistry : Mg9(SiO4)4(F,OH)2Rarity : Common
Clinoptilolite
Class : SilicatesSubclass : TectosilicatesCrystal system : MonoclinicChemistry : (Ca,K,Na)3Al3Si15O36 11.5H2ORarity : Rare to uncommon
Clinozoisite
Class : SilicatesSubclass : SorosilicatesCrystal system : MonoclinicChemistry : Ca2Al3(SiO4)3(OH)Rarity : Uncommon
Clintonite
Class : SilicatesSubclass : PhyllosilicatesCrystal system : MonoclinicChemistry : CaMg2Al4SiO10(OH)2Rarity : Uncommon
Cobaltite
Class : Sulfides and sulfosaltsSubclass : SulfidesCrystal system : OrthorhombicChemistry : CoAsSRarity : Rare
Coesite
Class : SilicatesSubclass : TectosilicatesCrystal system : MonoclinicChemistry : SiO2Rarity : Rare
Coffinite
Class : SilicatesSubclass : NesosilicatesCrystal system : TetragonalChemistry : U(SiO4)(OH)4Rarity : Quite common
Colemanite
Class : Carbonates, nitrates, boratesSubclass : BoratesCrystal system : MonoclinicChemistry : Ca2B6O11 H2ORarity : Fairly rare
Columbite
Class : Oxides and hydroxidesSubclass : OxidesCrystal system : OrthorhombicChemistry : (Fe2+,Mn2+,Mg2+)(Nb,Ta)2O6Rarity : Uncommon
Compreignacite
Class : Oxides and hydroxidesSubclass : Uranyl hydroxidesCrystal system : OrthorhombicChemistry : K2(UO2)6O4(OH)6 8H2ORarity : Very rare
Conichalcite
Class : Phosphates, arsenates, vanadatesSubclass : Anhydrous arsenatesCrystal system : OrthorhombicChemistry : CaCu(AsO4)(OH)Rarity : Uncommon
Connellite
Class : HalidesSubclass : OxychloridesCrystal system : HexagonalChemistry : Cu19Cl4(SO4)(OH)32 3H2ORarity : Rare
Cookeite
Class : SilicatesSubclass : PhyllosilicatesCrystal system : TriclinicChemistry : LiAl4(Si3Al)O10(OH)8Rarity : Quite common
Copiapite
Class : Sulfates, chromates, molybdatesSubclass : Hydrated sulfatesCrystal system : TriclinicChemistry : Fe5(SO4)6(OH)2 20H2ORarity : Quite common
Coquimbite
Class : Sulfates, chromates, molybdatesSubclass : Hydrated sulfatesCrystal system : TrigonalChemistry : Fe2(SO4)3 9H2ORarity : Rare to uncommon
Cordierite
Class : SilicatesSubclass : CyclosilicatesCrystal system : OrthorhombicChemistry : Mg2Al4Si5O18Rarity : Common
Corundum
Class : Oxides and hydroxidesSubclass : OxidesCrystal system : TrigonalChemistry : Al2O3Rarity : Common
Corkite
Class : Phosphates, arsenates, vanadatesSubclass : Anhydrous phosphatesCrystal system : TrigonalChemistry : PbFe3(PO4)(SO4)(OH)6Rarity : Uncommon
Cornetite
Class : Phosphates, arsenates, vanadatesSubclass : Anhydrous phosphatesCrystal system : OrthorhombicChemistry : Cu3PO4(OH)3Rarity : Rare
Cornubite
Class : Phosphates, arsenates, vanadatesSubclass : Anhydrous arsenatesCrystal system : TriclinicChemistry : Cu5(AsO4)2(OH)4Rarity : Rare
Cornwallite
Class : Phosphates, arsenates, vanadatesSubclass : Anhydrous arsenatesCrystal system : MonoclinicChemistry : Cu5(AsO4)2(OH)4Rarity : Uncommon
Coronadite
Class : Oxides and hydroxidesSubclass : OxidesCrystal system : MonoclinicChemistry : PbMn8O16Rarity : Uncommon
Cosalite
Class : Sulfides and sulfosaltsSubclass : SulfosaltsCrystal system : OrthorhombicChemistry : Pb2Bi2S5Rarity : Uncommon
Cotunnite
Class : HalidesSubclass : ChloridesCrystal system : OrthorhombicChemistry : PbCl2Rarity : Rare
Covellite
Class : Sulfides and sulfosaltsSubclass : SulfidesCrystal system : HexagonalChemistry : CuSRarity : Common
Crandallite
Class : Phosphates, arsenates, vanadatesSubclass : Hydrated phosphatesCrystal system : TrigonalChemistry : CaAl3(PO4)2(OH)5 H2ORarity : Common
Creedite
Class : Sulfates, chromates, molybdatesSubclass : Hydrated sulfatesCrystal system : MonoclinicChemistry : CaAl2(SO4)(F,OH)10 2H2ORarity : Rare
Crichtonite
Class : Oxides and hydroxidesSubclass : OxidesCrystal system : TrigonalChemistry : (Sr,La,Ce,Y)(Ti,Fe,Mn)21O38Rarity : Rare
Cristobalite
Class : SilicatesSubclass : TectosilicatesCrystal system : TetragonalChemistry : SiO2Rarity : Common
Crocidolite
Class : SilicatesSubclass : InosilicatesCrystal system : MonoclinicChemistry : Na2Fe5Si8O22(OH)2Rarity : Uncommon
Crocoite
Class : Sulphates, chromates, molybdatesSubclass : ChromatesCrystal system : MonoclinicChemistry : PbCrO4Rarity : Rare
Cronstedtite
Class : SilicatesSubclass : PhyllosilicatesCrystal system : TrigonalChemistry : Fe3(SiFe)O5(OH)4Rarity : Uncommon
Crossite
Class : SilicatesSubclass : InosilicatesCrystal system : MonoclinicChemistry : Na2(Mg,Fe)3(Al,Fe)2Si8O22(OH)2Rarity : Common
Cryolite
Class : HalidesSubclass : FluoridesCrystal system : MonoclinicChemistry : Na3AlF6Rarity : Rare
Cryptomelane
Class : Oxides and hydroxidesSubclass : OxidesCrystal system : MonoclinicChemistry : KMn8O16Rarity : Rare
Cubanite
Class : Sulfides and sulfosaltsSubclass : SulfidesCrystal system : OrthorhombicChemistry : CuFe2S3Rarity : Uncommon
Copper
Class : ElementsSubclass : MetalsCrystal system : CubicChemistry : CuRarity : Common
Cumengeite
Class : HalidesSubclass : OxychloridesCrystal system : TetragonalChemistry : Pb21Cu20Cl42(OH)40Rarity : Very rare
Cummingtonite
Class : SilicatesSubclass : InosilicatesCrystal system : MonoclinicChemistry : (Mg,Fe)7Si8O22(OH)2Rarity : Common
Cuprite
Class : Oxides and hydroxidesSubclass : OxidesCrystal system : CubicChemistry : Cu2ORarity : Uncommon
Cuproskodowskite
Class : SilicatesSubclass : NesosilicatesCrystal system : TriclinicChemistry : (H3O)Cu(UO2)2(SiO4)2 2H2ORarity : Rare
Curienite
Class : Phosphates, arsenates, vanadatesSubclass : Uranyl vanadatesCrystal system : OrthorhombicChemistry : Pb(UO2)2(VO4)2 5H2ORarity : Rare
Curite
Class : Oxides and hydroxidesSubclass : Uranyl hydroxidesCrystal system : OrthorhombicChemistry : Pb3(UO2)8O8(OH)6 3H2ORarity : Rare
Cyanotrichite
Class : Sulphates, chromates, molybdatesSubclass : Hydrated sulphatesCrystal system : OrthorhombicChemistry : Cu4Al2(SO4)(OH)12 2H2ORarity : Rare
Cylindrite
Class : Sulfides and sulfosaltsSubclass : SulfidesCrystal system : TriclinicChemistry : Pb3Sn4FeSb2S14Rarity : Very rare
Cyrilovite
Class : Phosphates, arsenates, vanadatesSubclass : Hydrated phosphatesCrystal system : TetragonalChemistry : NaFe3(PO4)2(OH)4 2H2ORarity : Rare