MINERALS OF TRICLINIC SYSTEM

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Aenigmatite

Class : Silicates
Subclass : Inosilicates
Crystal system : Triclinic
Chemistry : Na2Fe5TiSi6O20
Rarity : Rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Albite

Class : Silicates
Subclass : Tectosilicates
Crystal system : Triclinic
Chemistry : NaAlSi3O8
Rarity : Very common

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Alumohydrocalcite

Class : Carbonates, Nitrates, Borates
Subclass : Hydrous carbonates
Crystal system : Triclinic
Chemistry : CaAl2(CO3)2(OH)4 3H2O
Rarity : Uncommon

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Alunogen

Class : Sulphates, chromates, molybdates
Subclass : Hydrated sulphates
Crystal system : Triclinic
Chemistry : Al2(SO4)3 17H2O
Rarity : Uncommon

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Amarantite

Class : Sulphates, chromates, molybdates
Subclass : Hydrated sulphates
Crystal system : Triclinic
Chemistry : Fe2(SO4)2O 7H2O
Rarity : Rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Amazonite

Class : Silicates
Subclass : Tectosilicates
Crystal system : Triclinic
Chemistry : KAlSi3O8
Rarity : Rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Amblygonite

Class : Phosphates, arsenates, vanadates
Subclass : Anhydrous phosphates
Crystal system : Triclinic
Chemistry : LiAlF(PO4)
Rarity : Uncommon

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Amesite

Class : Silicates
Subclass : Phyllosilicates
Crystal system : Triclinic
Chemistry : Mg2AlSiAlO5(OH)4
Rarity : Rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Analcime

Class : Silicates
Subclass : Tectosilicates
Crystal system : Triclinic
Chemistry : NaAlSi2O6 H2O
Rarity : Quite common

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Anapaite

Class : Phosphates, arsenates, vanadates
Subclass : Hydrated phosphates
Crystal system : Triclinic
Chemistry : Ca2Fe(PO4)2 4H2O
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Andesine

Class : Silicates
Subclass : Tectosilicates
Crystal system : Triclinic
Chemistry : (Na,Ca)(Al,Si)4O8
Rarity : Very common

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Anorthite

Class : Silicates
Subclass : Tectosilicates
Crystal system : Triclinic
Chemistry : CaAl2Si2O8
Rarity : Uncommon

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Anorthoclase

Class : Silicates
Subclass : Tectosilicates
Crystal system : Triclinic
Chemistry : (Na,K)AlSi3O8
Rarity : Fairly common

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Astrophyllite

Class : Silicates
Subclass : Inosilicates
Crystal system : Triclinic
Chemistry : (K,Na)3(Fe,Mn)7Ti2Si8O24(O,OH)7
Rarity : Uncommon

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Axinite

Class : Silicates
Subclass : Sorosilicates
Crystal system : Triclinic
Chemistry : (Ca,Fe,Mn,Mg)3Al2BSi4O15(OH)
Rarity : Uncommon

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Babingtonite

Class : Silicates
Subclass : Inosilicates
Crystal system : Triclinic
Chemistry : Ca2Fe2Si5O14(OH)
Rarity : Rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Baumhauerite

Class : Sulfides and sulfosalts
Subclass : Sulfosalts
Crystal system : Triclinic
Chemistry : Pb3As4S9
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Bustamite

Class : Silicates
Subclass : Inosilicates
Crystal system : Triclinic
Chemistry : CaMnSi2O6
Rarity : Uncommon

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Bytownite

Class : Silicates
Subclass : Inosilicates
Crystal system : Triclinic
Chemistry : (Na,Ca)(Al,Si)4O8
Rarity : Common

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Ceruleite

Class : Phosphates, arsenates, vanadates
Subclass : Hydrated arsenates
Crystal system : Triclinic
Chemistry : Cu2Al7(AsO4)4(OH)13 12H2O
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Chabazite

Class : Silicates
Subclass : Tectosilicates
Crystal system : Triclinic
Chemistry : CaAl2Si4O12
Rarity : Common

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Chalcanthite

Class : Sulfates, chromates, molybdates
Subclass : Hydrated sulfates
Crystal system : Triclinic
Chemistry : CuSO2 5H2O
Rarity : Common

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Chalcosiderite

Class : Phosphates, arsenates, vanadates
Subclass : Hydrated phosphates
Crystal system : Triclinic
Chemistry : CuFe6(PO4)4(OH)8 4H2O
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Cookeite

Class : Silicates
Subclass : Phyllosilicates
Crystal system : Triclinic
Chemistry : LiAl4(Si3Al)O10(OH)8
Rarity : Quite common

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Copiapite

Class : Sulfates, chromates, molybdates
Subclass : Hydrated sulfates
Crystal system : Triclinic
Chemistry : Fe5(SO4)6(OH)2 20H2O
Rarity : Quite common

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Cornubite

Class : Phosphates, arsenates, vanadates
Subclass : Anhydrous arsenates
Crystal system : Triclinic
Chemistry : Cu5(AsO4)2(OH)4
Rarity : Rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Cuproskodowskite

Class : Silicates
Subclass : Nesosilicates
Crystal system : Triclinic
Chemistry : (H3O)Cu(UO2)2(SiO4)2 2H2O
Rarity : Rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Cylindrite

Class : Sulfides and sulfosalts
Subclass : Sulfides
Crystal system : Triclinic
Chemistry : Pb3Sn4FeSb2S14
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Dadsonite

Class : Sulfides and sulfosalts
Subclass : Sulfosalts
Crystal system : Triclinic
Chemistry : Pb23Sb25S60Cl
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Demesmaekerite

Class : Oxides and hydroxides
Subclass : Uranyl selenites
Crystal system : Triclinic
Chemistry : Pb2Cu5(UO2)2(SeO3)6(OH)6 2H2O
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Diadochite

Class : Phosphates, arsenates, vanadates
Subclass : Hydrated phosphates
Crystal system : Triclinic
Chemistry : Fe2(PO4)(SO4)(OH) 5H2O
Rarity : Common

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Disthen (Kyanite)

Class : Silicates
Subclass : Nesosilicates
Crystal system : Triclinic
Chemistry : Al2SiO5
Rarity : Fairly common

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Donnayite

Class : Carbonates, nitrates, borates
Subclass : Hydrated carbonates
Crystal system : Triclinic
Chemistry : Sr3NaCaY(CO3)6 3H2O
Rarity : Rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Ehrleite

Class : Phosphates, arsenates, vanadates
Subclass : Hydrated phosphates
Crystal system : Triclinic
Chemistry : Ca2ZnBe(PO4)2(PO3OH) 4H2O
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Emmonsite

Class : Oxides and hydroxides
Subclass : Tellurites
Crystal system : Triclinic
Chemistry : Fe2Te3O9 2H2O
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Fairfieldite

Class : Phosphates, arsenates, vanadates
Subclass : Hydrated phosphates
Crystal system : Triclinic
Chemistry : Ca2(Mn,Fe)(PO4)2 2H2O
Rarity : Rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Fluckite

Class : Phosphates, arsenates, vanadates
Subclass : Hydrated arsenates
Crystal system : Triclinic
Chemistry : CaMn(AsO3OH)2 2H2O
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Franckeite

Class : Sulfides and sulfosalts
Subclass : Sulfides
Crystal system : Triclinic
Chemistry : FePb5Sn3Sb2S14
Rarity : Rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Gaitite

Class : Phosphates, arsenates, vanadates
Subclass : Hydrated arsenates
Crystal system : Triclinic
Chemistry : Ca2Zn(AsO4)2 2H2O
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Gormanite

Class : Phosphates, arsenates, vanadates
Subclass : Hydrated phosphates
Crystal system : Triclinic
Chemistry : Fe3Al4(PO4)4(OH)6 2H2O
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Gyrolite

Class : Silicates
Subclass : Phyllosilicates
Crystal system : Triclinic
Chemistry : NaCa16(Si23Al)O60(OH)8 14H2O
Rarity : Rare to uncommon

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Hatchite

Class : Sulfides and sulfosalts
Subclass : Sulfosalts
Crystal system : Triclinic
Chemistry : (Pb,Tl)2AgAs2S5
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Hummerite

Class : Oxides and hydroxides
Subclass : Hydroxides and hydrates
Crystal system : Triclinic
Chemistry : KMgV5O14 8H2O
Rarity : Rare to very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Iimoriite

Class : Silicates
Subclass : Nesosilicates
Crystal system : Triclinic
Chemistry : Y2(SiO4)(CO3)
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Inderite

Class : Carbonates, nitrates, borates
Subclass : Borates
Crystal system : Monoclinic
Chemistry : MgB3O3(OH)5 5H2O
Rarity : Rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Inesite

Class : Silicates
Subclass : Inosilicates
Crystal system : Triclinic
Chemistry : Ca2Mn7Si10O28(OH)2 5H2O
Rarity : Rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Johannite

Class : Sulfates, chromates, molybdates
Subclass : Hydrated sulfates
Crystal system : Triclinic
Chemistry : Cu(UO2)2(SO4)2(OH)2 8H2O
Rarity : Uncommon

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Kaolinite

Class : Silicates
Subclass : Phyllosilicates
Crystal system : Triclinic
Chemistry : Al2Si2O5(OH)4
Rarity : Ubiquitous

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Kermesite

Class : Sulfides and sulfosalts
Subclass : Sulfides
Crystal system : Triclinic
Chemistry : Sb2S2O
Rarity : Quite common

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Kupletskite

Class : Silicates
Subclass : Inosilicates
Crystal system : Triclinic
Chemistry : (K,Na)3(Mn,Fe)7(Ti,Nb)2Si8O24(O,OH)7
Rarity : Rare to very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Labradorite

Class : Silicates
Subclass : Tectosilicates
Crystal system : Triclinic
Chemistry : (Ca,Na)(Al,Si)4O8
Rarity : Common

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Laueite

Class : Phosphates, arsenates, vanadates
Subclass : Hydrated phosphates
Crystal system : Triclinic
Chemistry : MnFe2(PO4)2(OH)2 8H2O
Rarity : Uncommon

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Lengenbachite

Class : Sulfides and sulfosalts
Subclass : Sulfosalts
Crystal system : Triclinic
Chemistry : Pb6(Ag,Cu)2As4S13
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Ludlockite

Class : Oxides and hydroxides
Subclass : Arsenites
Crystal system : Triclinic
Chemistry : PbFe4As10O22
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Mckelveyite

Class : Carbonates, nitrates, borates
Subclass : Hydrated carbonates
Crystal system : Triclinic
Chemistry : Ba3Na(Ca,U)(Y,Nd)(CO3)6 3H2O
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Meyerhofferite

Class : Carbonates, nitrates, borates
Subclass : Borates
Crystal system : Triclinic
Chemistry : CaB3O3(OH)5 H2O
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Microcline

Class : Silicates
Subclass : Tectosilicates
Crystal system : Triclinic
Chemistry : KAlSi3O8
Rarity : Ubiquitous

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Montebrasite

Class : Phosphates, arsenates, vanadates
Subclass : Anhydrous phosphates
Crystal system : Triclinic
Chemistry : LiAl(PO4)(OH,F)
Rarity : Rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Nekoite

Class : Silicates
Subclass : Inosilicates
Crystal system : Triclinic
Chemistry : Ca3Si6O15 7H2O
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Okenite

Class : Silicates
Subclass : Inosilicates
Crystal system : Triclinic
Chemistry : Ca5Si9O23 9H2O
Rarity : Uncommon

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Oligoclase

Class : Silicates
Subclass : Tectosilicates
Crystal system : Triclinic
Chemistry : (Na,Ca)(Al,Si)4O8
Rarity : Ubiquitous

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Paradamite

Class : Phosphates, arsenates, vanadates
Subclass : Anhydrous arsenates
Crystal system : Triclinic
Chemistry : Zn2(AsO4)(OH)
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Parahopeite

Class : Phosphates, arsenates, vanadates
Subclass : Hydrated phosphates
Crystal system : Triclinic
Chemistry : Zn3(PO4)2 4H2O
Rarity : Rare to very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Paravauxite

Class : Phosphates, arsenates, vanadates
Subclass : Hydrated phosphates
Crystal system : Triclinic
Chemistry : FeAl2(PO4)2(OH)2 8H2O
Rarity : Rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Parsonsite

Class : Phosphates, arsenates, vanadates
Subclass : Uranyl phosphates
Crystal system : Triclinic
Chemistry : Pb2(UO2)(PO4)2 2H2O
Rarity : Rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Pectolite

Class : Silicates
Subclass : Inosilicates
Crystal system : Triclinic
Chemistry : NaCa2Si3O8(OH)
Rarity : Uncommon

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Picropharmacolite

Class : Sulfates, chromates, molybdates
Subclass : Hydrated sulfates
Crystal system : Triclinic
Chemistry : Ca4Mg(AsO4)2(HAsO4)2 11H2O
Rarity : Uncommon

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Plagioclase

Class : Silicates
Subclass : Tectosilicates
Crystal system : Triclinic
Chemistry : NaxCa1-xAl2-xSi2+xO8
Rarity : Ubiquitous

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Polyhalite

Class : Sulfates, chromates, molybdates
Subclass : Hydrated sulfates
Crystal system : Triclinic
Chemistry : K2Ca2Mg(SO4)4 2H2O
Rarity : Common

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Priceite

Class : Carbonates, nitrates, borates
Subclass : Borates
Crystal system : Triclinic
Chemistry : Ca4B10O19 7H2O
Rarity : Uncommon to rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Pyroxenoid

Class : Silicates
Subclass : Inosilicates
Crystal system : Triclinic
Chemistry : Xn(SiO3)n
Rarity : Fairly common to common

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Pyroxferroite

Class : Silicates
Subclass : Inosilicates
Crystal system : Triclinic
Chemistry : (Fe,Mn,Ca)SiO3
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Pyroxmangite

Class : Silicates
Subclass : Inosilicates
Crystal system : Triclinic
Chemistry : MnSiO3
Rarity : Uncommon

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Rauenthalite

Class : Phosphates, arsenates, vanadates
Subclass : Hydrated arsenates
Crystal system : Triclinic
Chemistry : Ca3(AsO4)2 10H2O
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Rhodonite

Class : Silicates
Subclass : Inosilicates
Crystal system : Triclinic
Chemistry : MnSiO3
Rarity : Common

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Rhönite

Class : Silicates
Subclass : Inosilicates
Crystal system : Triclinic
Chemistry : Ca2(Mg,Fe,Ti)6(Si,Al)6O20
Rarity : Rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Römerite

Class : Sulfates, chromates, molybdates
Subclass : Hydrated sulfates
Crystal system : Triclinic
Chemistry : Fe3(SO4)4 14H2O
Rarity : Rare to uncommon

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Roubaultite

Class : Carbonates, nitrates, borates
Subclass : Uranyl carbonates
Crystal system : Triclinic
Chemistry : Cu2(UO2)3(CO3)2O2(OH)2 4H2O
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Sassolite

Class : Carbonates, nitrates, borates
Subclass : Borates
Crystal system : Triclinic
Chemistry : H3BO3
Rarity : Rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Schneiderhöhnite

Class : Oxides and hydroxides
Subclass : Arsenites
Crystal system : Triclinic
Chemistry : Fe4As5O13
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Schröckingerite

Class : Carbonates, nitrates, borates
Subclass : Uranyl carbonates
Crystal system : Triclinic
Chemistry : NaCa3(UO2)(CO3)3SO4F 10H2O
Rarity : Fairly common

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Serandite

Class : Silicates
Subclass : Inosilicates
Crystal system : Triclinic
Chemistry : Na(Mn,Ca)2Si3O8(OH)
Rarity : Rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Serpentine

Class : Silicates
Subclass : Phyllosilicates
Crystal system : Triclinic / Monoclinic
Chemistry : Mg3Si2O5(OH)4
Rarity : Common

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Sigloite

Class : Phosphates, arsenates, vanadates
Subclass : Hydrated phosphates
Crystal system : Triclinic
Chemistry : FeAl2(PO4)2(OH)3 7H2O
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Souzalite

Class : Phosphates, arsenates, vanadates
Subclass : Hydrated phosphates
Crystal system : Triclinic
Chemistry : (Mg,Fe)3(Al,Fe)4(PO4)4(OH)6 2H2O
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

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Stewartite

Class : Phosphates, arsenates, vanadates
Subclass : Hydrated phosphates
Crystal system : Triclinic
Chemistry : MnFe2(PO4)2(OH)2 8H2O
Rarity : Very rare to rare

Size : µm / mm / cm / dm / m

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Stilpnomelane

Class : Silicates
Subclass : Phyllosilicates
Crystal system : Triclinic
Chemistry : K(Fe,Mg)8(Si,Al)12(O,OH)27
Rarity : Fairly common

Size : µm / mm / cm / dm / m

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Strunzite

Class : Phosphates, arsenates, vanadates
Subclass : Hydrated phosphates
Crystal system : Triclinic
Chemistry : MnFe2(PO4)2(OH)2 6H2O
Rarity : Rare to uncommon

Size : µm / mm / cm / dm / m

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Symplesite

Class : Phosphates, arsenates, vanadates
Subclass : Hydrated arsenates
Crystal system : Triclinic
Chemistry : Fe3(AsO4)2 8H2O
Rarity : Rare

Size : µm / mm / cm / dm / m

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Talmessite

Class : Phosphates, arsenates, vanadates
Subclass : Hydrated arsenates
Crystal system : Triclinic
Chemistry : Ca2Mg(AsO4)2 2H2O
Rarity : Uncommon

Size : µm / mm / cm / dm / m

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Tarbuttite

Class : Phosphates, arsenates, vanadates
Subclass : Anhydrous phosphates
Crystal system : Triclinic
Chemistry : Zn2PO4(OH)
Rarity : Very rare

Size : µm / mm / cm / dm / m

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Tinzenite

Class : Silicates
Subclass : Sorosilicates
Crystal system : Triclinic
Chemistry : (Ca,Mn,Fe)3Al2BSi4O15(OH)
Rarity : Very rare

Size : µm / mm / cm / dm / m

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Turquoise

Class : Phosphates, arsenates, vanadates
Subclass : Hydrated phosphates
Crystal system : Triclinic
Chemistry : CuAl6(PO4)4(OH)84H2O
Rarity : Uncommon

Size : µm / mm / cm / dm / m

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Ulexite

Class : Carbonates, nitrates, borates
Subclass : Borates
Crystal system : Triclinic
Chemistry : NaCaB5O6(OH)6 5H2O
Rarity : Fairly common

Size : µm / mm / cm / dm / m

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Vandenbrandeite

Class : Oxides and hydroxides
Subclass : Uranyl hydroxides
Crystal system : Triclinic
Chemistry : Cu(UO2)(OH)4
Rarity : Very rare

Size : µm / mm / cm / dm / m

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Vauxite

Class : Phosphates, arsenates, vanadates
Subclass : Hydrated phosphates
Crystal system : Triclinic
Chemistry : FeAl2(PO4)2(OH)2 6H2O
Rarity : Very rare

Size : µm / mm / cm / dm / m

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Wallisite

Class : Sulfides and sulfosalts
Subclass : Sulfosalts
Crystal system : Triclinic
Chemistry : PbTl(Cu,Ag)As2S5
Rarity : Very rare

Size : µm / mm / cm / dm / m

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Walpurgite

Class : Phosphates, arsenates, vanadates
Subclass : Hydrated arsenates
Crystal system : Triclinic
Chemistry : Bi4(UO2)O4(AsO4)2 2H2O
Rarity : Rare

Size : µm / mm / cm / dm / m

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Wollastonite

Class : Silicates
Subclass : Inosilicates
Crystal system : Triclinic
Chemistry : CaSiO3
Rarity : Fairly common to common

Size : µm / mm / cm / dm / m

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