Sabugalite
Class : Phosphates, arsenates, vanadatesSubclass : Uranyl phosphatesCrystal system : MonoclinicChemistry : HAl(UO2)4(PO4)4 16H2ORarity : Fairly common
Size : µm / mm / cm / dm / m
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Safflorite
Class : Sulfides and sulfosaltsSubclass : ArsenidesCrystal system : OrthorhombicChemistry : CoAs2Rarity : Uncommon
Sainfeldite
Class : Phosphates, arsenates, vanadatesSubclass : Hydrated arsenatesCrystal system : MonoclinicChemistry : Ca5(AsO4)2(AsO3OH)2 4H2ORarity : Very rare
Saléeite
Class : Phosphates, arsenates, vanadatesSubclass : Uranyl phosphatesCrystal system : MonoclinicChemistry : Mg(UO2)2(PO4)2 10H2ORarity : Uncommon
Salite
Class : SilicatesSubclass : InosilicatesCrystal system : MonoclinicChemistry : CaMgSi2O6Rarity : Common to very common
Salammoniac
Class : HalidesSubclass : ChloridesCrystal system : CubicChemistry : NH4ClRarity : Common
Samarskite
Class : Oxides and hydroxidesSubclass : OxidesCrystal system : MonoclinicChemistry : (Y,Ce,Fe,U)(Bb,Ta)O4Rarity : Uncommon
Sampleite
Class : Phosphates, arsenates, vanadatesSubclass : Hydrated phosphatesCrystal system : OrthorhombicChemistry : NaCaCu5(PO4)4Cl 5H2ORarity : Rare
Sanidine
Class : SilicatesSubclass : TectosilicatesCrystal system : MonoclinicChemistry : (Ca,Na)AlSi3O8Rarity : Very common
Sapphire
Class : Oxides and hydroxidesSubclass : OxidesCrystal system : TrigonalChemistry : Al2O3Rarity : Rare
Saponite
Class : SilicatesSubclass : PhyllosilicatesCrystal system : MonoclinicChemistry : (Ca,Na)0.3(Mg,Fe)3(Si,Al)4O10(OH)2 4H2ORarity : Common
Sapphirine
Class : SilicatesSubclass : InosilicatesCrystal system : MonoclinicChemistry : Mg7Al18Si3O40Rarity : Rare to uncommon
Sartorite
Class : Sulfides and sulfosaltsSubclass : SulfidesCrystal system : MonoclinicChemistry : PbAs2S4Rarity : Very rare
Sassolite
Class : Carbonates, nitrates, boratesSubclass : BoratesCrystal system : TriclinicChemistry : H3BO3Rarity : Rare
Scapolite
Class : SilicatesSubclass : TectosilicatesCrystal system : TetragonalChemistry : Na4Al3Si9O24Cl à Ca4Al6Si6O24CO3Rarity : Quite common
Scheelite
Class : Sulphates, chromates, vanadatesSubclass : TungstatesCrystal system : TetragonalChemistry : CaWO4Rarity : Common
Schneiderhöhnite
Class : Oxides and hydroxidesSubclass : ArsenitesCrystal system : TriclinicChemistry : Fe4As5O13Rarity : Very rare
Schoepite
Class : Oxides and hydroxidesSubclass : Uranyl hydroxidesCrystal system : OrthorhombicChemistry : (UO2)4O(OH)6 6H2ORarity : Rare
Scholzite
Class : Phosphates, arsenates, vanadatesSubclass : Hydrated phosphatesCrystal system : OrthorhombicChemistry : CaZn2(PO4)2 2H2ORarity : Uncommon
Schorl
Class : SilicatesSubclass : CyclosilicatesCrystal system : TrigonalChemistry : NaFe3Al6(BO3)3Si6O18(O,F,OH)4Rarity : Very common
Schorlomite
Class : SilicatesSubclass : NesosilicatesCrystal system : CubicChemistry : Ca3Ti2(Fe2Si)O12Rarity : Rare
Schröckingerite
Class : Carbonates, nitrates, boratesSubclass : Uranyl carbonatesCrystal system : TriclinicChemistry : NaCa3(UO2)(CO3)3SO4F 10H2ORarity : Fairly common
Schulenbergite
Class : Sulfates, chromates, molybdatesSubclass : Hydrated sulfatesCrystal system : TrigonalChemistry : (Cu,Zn)7(SO4,CO3)2(OH)10 3H2ORarity : Rare
Scolecite
Class : SilicatesSubclass : TectosilicatesCrystal system : MonoclinicChemistry : CaAl2Si3O10 3H2ORarity : Fairly common
Scorodite
Class : Phosphates, arsenates, vanadatesSubclass : Hydrated arsenatesCrystal system : OrthorhombicChemistry : FeAsO4 2H2ORarity : Uncommon
Scorzalite
Class : Phosphates, arsenates, vanadatesSubclass : Anhydrous phosphatesCrystal system : MonoclinicChemistry : (Fe,Mg)Al2(PO4)2(OH)2Rarity : Rare to uncommon
Searlesite
Class : SilicatesSubclass : PhyllosilicatesCrystal system : MonoclinicChemistry : NaBSi2O5(OH)2Rarity : Rare
Selenium
Class : ElementsSubclass : Non-metalsCrystal system : TrigonalChemistry : SeRarity : Rare
Seligmannite
Class : Sulfides and SulfosaltsSubclass : SulfosaltsCrystal system : OrthorhombicChemistry : PbCuAsS3Rarity : Rare
Sellaite
Class : HalidesSubclass : FluoridesCrystal system : TetragonalChemistry : MgF2Rarity : Rare
Semseyite
Class : Sulphides and sulfosaltsSubclass : SulfosaltsCrystal system : MonoclinicChemistry : Pb9Sb8S21Rarity : Fairly common
Senarmontite
Class : Oxides and hydroxidesSubclass : OxidesCrystal system : CubicChemistry : Sb2O3Rarity : Rare
Senegalite
Class : Phosphates, arsenates, vanadatesSubclass : Hydrated phosphatesCrystal system : OrthorhombicChemistry : Al2(PO4)(OH)3 H2ORarity : Very rare
Sengierite
Class : Phosphates, arsenates, vanadatesSubclass : Uranyl vanadatesCrystal system : MonoclinicChemistry : Cu2(UO2)2(VO4)2(OH)2 6H2ORarity : Very rare
Sepiolite
Class : Mg4Si6O15(OH)2 6H2OSubclass : PhyllosilicatesCrystal system : OrthorhombicChemistry : Mg4Si6O15(OH)2 6H2ORarity : Fairly common
Serandite
Class : SilicatesSubclass : InosilicatesCrystal system : TriclinicChemistry : Na(Mn,Ca)2Si3O8(OH)Rarity : Rare
Serpentine
Class : SilicatesSubclass : PhyllosilicatesCrystal system : Triclinic / MonoclinicChemistry : Mg3Si2O5(OH)4Rarity : Common
Serpierite
Class : Sulfates, chromates, molybdatesSubclass : Hydrated sulfatesCrystal system : MonoclinicChemistry : Ca(Cu,Zn)4(SO4)2(OH)6 3H2ORarity : Rare
Shattuckite
Class : SilicatesSubclass : InosilicatesCrystal system : OrthorhombicChemistry : Cu5(SiO3)4(OH)2Rarity : Rare
Shortite
Class : Carbonates, nitrates, boratesSubclass : Anhydrous carbonatesCrystal system : OrthorhombicChemistry : Na2Ca2(CO3)3Rarity : Very rare
Sicklerite
Class : Phosphates, arsenates, vanadatesSubclass : Anhydrous phosphatesCrystal system : OrthorhombicChemistry : Li(Mn,Fe)PO4Rarity : Uncommon
Siderite
Class : Carbonates, nitrates, boratesSubclass : Anhydrous carbonatesCrystal system : TrigonalChemistry : FeCO3Rarity : Very common
Siegenite
Class : Sulfides and sulfosaltsSubclass : SulfidesCrystal system : CubicChemistry : (Ni,Co)3S4Rarity : Rare
Sigloite
Class : Phosphates, arsenates, vanadatesSubclass : Hydrated phosphatesCrystal system : TriclinicChemistry : FeAl2(PO4)2(OH)3 7H2ORarity : Very rare
Sillimanite
Class : SilicatesSubclass : NesosilicatesCrystal system : OrthorhombicChemistry : Al2SiO5Rarity : Common
Sklodowskite
Class : SilicatesSubclass : NesosilicatesCrystal system : MonoclinicChemistry : (H3O)2Mg(UO2)2(SiO4)2 2H2ORarity : Rare
Skutterudite
Class : Sulfides and sulphosaltsSubclass : ArsenidesCrystal system : CubicChemistry : CoAs2-3Rarity : Uncommon
Slavikite
Class : Sulfates, chromates, molybdatesSubclass : Hydrated sulfatesCrystal system : TrigonalChemistry : NaMg2Fe5(SO4)7(OH)6 33H2ORarity : Rare
Smectite
Class : SilicatesSubclass : PhyllosilicatesCrystal system : MonoclinicChemistry : X0.3Y2-3Z4O10(OH)2 nH2ORarity : Very common
Smithsonite
Class : Carbonates, nitrates, boratesSubclass : Anhydrous carbonatesCrystal system : TrigonalChemistry : ZnCO3Rarity : Rare
Sodalite
Class : SilicatesSubclass : TectosilicatesCrystal system : CubicChemistry : Na8Al6Si6O24Cl2Rarity : Rare
Soddyite
Class : SilicatesSubclass : NesosilicatesCrystal system : OrthorhombicChemistry : (UO2)2SiO4 2H2ORarity : Rare
Sulphur
Class : ElementsSubclass : Non-metalsCrystal system : OrthorhombicChemistry : SRarity : Quite common
Souzalite
Class : Phosphates, arsenates, vanadatesSubclass : Hydrated phosphatesCrystal system : TriclinicChemistry : (Mg,Fe)3(Al,Fe)4(PO4)4(OH)6 2H2ORarity : Very rare
Spangolite
Class : Sulfates, chromates, molybdatesSubclass : Hydrated sulfatesCrystal system : TrigonalChemistry : Cu6AlSO4(OH)12Cl 3H2ORarity : Fairly common
Spencerite
Class : Phosphates, arsenates, vanadatesSubclass : Hydrated phosphatesCrystal system : MonoclinicChemistry : Zn4(PO4)2(OH)2 3H2ORarity : Very rare
Sperrylite
Class : Sulfides and sulfosaltsSubclass : SulfidesCrystal system : CubicChemistry : PtAs2Rarity : Rare to very rare
Sphalerite
Class : Sulfides and sulfosaltsSubclass : SulfidesCrystal system : CubicChemistry : ZnSRarity : Very common
Spherocobaltite
Class : Carbonates, nitrates, boratesSubclass : Anhydrous carbonatesCrystal system : TrigonalChemistry : CoCO3Rarity : Rare
Spinel
Class : Oxides and hydroxidesSubclass : OxidesCrystal system : CubicChemistry : MgAl2O4Rarity : Common
Spodumene
Class : SilicatesSubclass : InosilicatesCrystal system : MonoclinicChemistry : LiAlSi2O6Rarity : Uncommon
Stannite
Class : Sulfides and SulfosaltsSubclass : SulfidesCrystal system : TetragonalChemistry : Cu2FeSnS4Rarity : Fairly common
Staurolite
Class : SilicatesSubclass : NesosilicatesCrystal system : MonoclinicChemistry : Fe2Al9(Si,Al)4O22(OH)2Rarity : Very common
Steenstrupine
Class : SilicatesSubclass : SorosilicatesCrystal system : TrigonalChemistry : Na14Ce6Mn2Fe2Zr(Si6O18)2(PO4)7(OH)2 3H2ORarity : Very rare
Stellerite
Class : SilicatesSubclass : TectosilicatesCrystal system : OrthorhombicChemistry : CaAl2Si7O18 7H2ORarity : Rare to uncommon
Stephanite
Class : Sulfides and sulfosaltsSubclass : SulfosaltsCrystal system : OrthorhombicChemistry : Ag5SbS4Rarity : Uncommon
Stewartite
Class : Phosphates, arsenates, vanadatesSubclass : Hydrated phosphatesCrystal system : TriclinicChemistry : MnFe2(PO4)2(OH)2 8H2ORarity : Very rare to rare
Stibiconite
Class : Oxides and hydroxidesSubclass : OxidesCrystal system : CubicChemistry : Sb3O6(OH)Rarity : Fairly common
Stibnite
Class : Sulfides and sulfosaltsSubclass : SulfidesCrystal system : OrthorhombicChemistry : Sb2S3Rarity : Fairly common
Stibiotantalite
Class : Oxides and hydroxidesSubclass : OxidesCrystal system : OrthorhombicChemistry : SbTaO4Rarity : Rare
Stichtite
Class : Carbonates, nitrates, boratesSubclass : Hydrated carbonatesCrystal system : TrigonalChemistry : Mg6Cr2(CO3)(OH)16 4H2ORarity : Uncommon to rare
Stilbite
Class : SilicatesSubclass : TectosilicatesCrystal system : MonoclinicChemistry : NaCa2Al5Si13O36 14H2ORarity : Common
Stilpnomelane
Class : SilicatesSubclass : PhyllosilicatesCrystal system : TriclinicChemistry : K(Fe,Mg)8(Si,Al)12(O,OH)27Rarity : Fairly common
Stishovite
Class : SilicatesSubclass : TectosilicatesCrystal system : TetragonalChemistry : SiO2Rarity : Very rare
Stolzite
Class : Sulphates, chromates, molybdatesSubclass : TungstatesCrystal system : TetragonalChemistry : PbWO4Rarity : Rare
Strashimirite
Class : Phosphates, arsenates, vanadatesSubclass : Hydrated arsenatesCrystal system : MonoclinicChemistry : Cu8(AsO4)4(OH)4 5H2ORarity : Uncommon to rare
Strengite
Class : Phosphates, arsenates, vanadatesSubclass : Hydrated phosphatesCrystal system : OrthorhombicChemistry : FePO4 2H2ORarity : Rare
Stromeyerite
Class : Sulfides and sulfosaltsSubclass : SulfidesCrystal system : OrthorhombicChemistry : AgCuSRarity : Uncommon
Strontianite
Class : Carbonates, nitrates, boratesSubclass : Anhydrous carbonatesCrystal system : OrthorhombicChemistry : SrCO3Rarity : Fairly common
Strunzite
Class : Phosphates, arsenates, vanadatesSubclass : Hydrated phosphatesCrystal system : TriclinicChemistry : MnFe2(PO4)2(OH)2 6H2ORarity : Rare to uncommon
Struvite
Class : Phosphates, arsenates, vanadatesSubclass : Hydrated phosphatesCrystal system : OrthorhombicChemistry : (NH4)MgPO4 6H2ORarity : Rare
Studtite
Class : Oxides and hydroxidesSubclass : Uranyl hydroxidesCrystal system : MonoclinicChemistry : UO4 4H2ORarity : Very rare
Sturmanite
Class : Sulfates, chromates, molybdatesSubclass : Hydrated sulfatesCrystal system : TrigonalChemistry : Ca6Fe2(SO4)2[B(OH)4](OH)12 25H2ORarity : Very rare
Sursassite
Class : SilicatesSubclass : SorosilicatesCrystal system : MonoclinicChemistry : Mn2Al3(SiO4)(Si2O7)(OH)3Rarity : Rare
Svabite
Class : Phosphates, arsenates, vanadatesSubclass : Anhydrous arsenatesCrystal system : HexagonalChemistry : Ca5(AsO4)3FRarity : Very rare
Svanbergite
Class : Sulfates, chromates, molybdatesSubclass : Anhydrous sulfatesCrystal system : TrigonalChemistry : SrAl3(PO4)(SO4)(OH)6Rarity : Uncommon
Sylvanite
Class : Sulfides and sulfosaltsSubclass : TelluridesCrystal system : MonoclinicChemistry : AuAgTe4Rarity : Rare
Sylvite
Class : HalidesSubclass : ChloridesCrystal system : CubicChemistry : KClRarity : Common
Symplesite
Class : Phosphates, arsenates, vanadatesSubclass : Hydrated arsenatesCrystal system : TriclinicChemistry : Fe3(AsO4)2 8H2ORarity : Rare
Synchysite
Class : Carbonates, nitrates, boratesSubclass : Anhydrous carbonatesCrystal system : MonoclinicChemistry : Ca(Ce,La)(CO3)2FRarity : Uncommon
Szaibelyite
Class : Carbonates, nitrates, boratesSubclass : BoratesCrystal system : MonoclinicChemistry : MgBO2(OH)Rarity : Uncommon