Wagnerite
Class : Phosphates, arsenates, vanadatesSubclass : Anhydrous phosphatesCrystal system : MonoclinicChemistry : (Mg,Fe)2(PO4)FRarity : Uncommon to fairly common
Size : µm / mm / cm / dm / m
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Wallisite
Class : Sulfides and sulfosaltsSubclass : SulfosaltsCrystal system : TriclinicChemistry : PbTl(Cu,Ag)As2S5Rarity : Very rare
Walpurgite
Class : Phosphates, arsenates, vanadatesSubclass : Hydrated arsenatesCrystal system : TriclinicChemistry : Bi4(UO2)O4(AsO4)2 2H2ORarity : Rare
Wardite
Class : Phosphates, arsenates, vanadatesSubclass : Hydrated phosphatesCrystal system : TetragonalChemistry : NaAl3(PO4)2(OH)4 2H2ORarity : Uncommon
Wavellite
Class : Phosphates, arsenates, vanadatesSubclass : Hydrated phosphatesCrystal system : TetragonalChemistry : Al3(PO4)2(OH,F)3 5H2ORarity : Uncommon
Weilerite
Class : Sulfates, chromates, molybdatesSubclass : Anhydrous sulfatesCrystal system : TrigonalChemistry : BaAl3(AsO4)(SO4)(OH)6Rarity : Very rare
Weloganite
Class : Carbonates, nitrates, boratesSubclass : Hydrated carbonatesCrystal system : MonoclinicChemistry : Sr3Na2Zr(CO3)6 3H2ORarity : Very rare
Whewellite
Class : Organic CompoundsSubclass : -Crystal system : MonoclinicChemistry : CaC2O4 H2ORarity : Uncommon
Whiteite
Class : Phosphates, arsenates, vanadatesSubclass : Hydrated phosphatesCrystal system : MonoclinicChemistry : CaMn2+Mn2+2Al2(PO4)4(OH)2 8H2ORarity : Rare
Whitlockite
Class : Phosphates, arsenates, vanadatesSubclass : Anhydrous phosphatesCrystal system : TrigonalChemistry : Ca9(Mg,Fe)(PO4)6(PO3OH)Rarity : Uncommon
Willemite
Class : SilicatesSubclass : NesosilicatesCrystal system : TrigonalChemistry : Zn2SiO4Rarity : Fairly common to uncommon
Wiluite
Class : Phosphates, arsenates, vanadatesSubclass : Hydrated ArsenatesCrystal system : TetragonalChemistry : Ca19MgAl4(Al,Mg)8(B,◻)4◻[(SiO4)10]O(O,OH)9Rarity : Very rare
Whiterite
Class : Carbonates, nitrates, boratesSubclass : Anhydrous carbonatesCrystal system : OrthorhombicChemistry : BaCO3Rarity : Rare to very rare
Wittichenite
Class : Sulfides and sulfosaltsSubclass : SulfosaltsCrystal system : OrthorhombicChemistry : Cu3BiS3Rarity : Rare to very rare
Wodginite
Class : Oxides and hydroxidesSubclass : OxidesCrystal system : MonoclinicChemistry : Mn(Sn,Ta)Ta2O8Rarity : Uncommon
Wöhlerite
Class : SilicatesSubclass : SorosilicatesCrystal system : MonoclinicChemistry : Na2Ca4ZrNb(Si2O7)2(O,F)4Rarity : Uncommon to fairly common
Wolframite
Class : Sulfates, chromates, molybdatesSubclass : TungstatesCrystal system : MonoclinicChemistry : (Fe2+,Mn2+)WO4Rarity : Quite common
Wollastonite
Class : SilicatesSubclass : InosilicatesCrystal system : TriclinicChemistry : CaSiO3Rarity : Fairly common to common
Wroewolfeite
Class : Sulfates, chromates, molybdatesSubclass : Hydrated sulfatesCrystal system : MonoclinicChemistry : Cu4SO4(OH)6 2H2ORarity : Rare
Wulfenite
Class : Sulfates, chromates, molybdatesSubclass : MolybdatesCrystal system : TetragonalChemistry : PbMoO4Rarity : Uncommon
Wurtzite
Class : Sulfides and sulfosaltsSubclass : SulfidesCrystal system : HexagonalChemistry : ZnSRarity : Quite common
Wyartite
Class : Carbonates, nitrates, boratesSubclass : Uranyl carbonatesCrystal system : OrthorhombicChemistry : Ca3U(UO2)6(CO3)2(OH)18 4H2ORarity : Very rare