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Arsenate
[As5+O4]3-, [As5+2O7]4-
Arsenite
[As3+O3]3-, [As3+4O9]6-, [As3+5O13]11-, [As3+10O22]14-
- Normal arsenite [As4O9]
- [A(3+)2][As(3+)4O9] [Orthorhombic ???]
- Karibibite
- Normal arsenite [As5O13]
- [A(2+)][B(3+)3][As(3+)5O13] [Triclinic P(-1)]
- Schneiderhöhnite, Schneiderhohnite
- Leiteite
- Ludlockite
- Paulmooreite
- Reinerite
- Normal arsenite [As10O22]
- [A(2+)][B(3+)4][As(3+)10O22] [Triclinic P(-1)]
- Ludlockite
- Hydrate-Hydroxide-Carbonate-Nesoborate-Arsenite
- [A(2+)3][B(4+)][(OH)6|CO3|(B(OH)4)0.5|(AsO3)0.5] [˜Z•û P63]
- Chiyokoite
- Normal arsenate [AsO4]
- [A(+)][B(2+)][C(2+)][D(2+)2][AsO4]3 [Cubic Ia3d] Berzeliite group
- Berzeliite
- Manganberzelite
- [A(+)][B(2+)][C(2+)][D(2+)2][AsO4]3 [Monoclinic I2/a]
- Arseniopleite
- Hydrate-Arsenate
- [A(3+)][AsO4],2H2O [Orthorhombic Pcab]
- Scorodite
- [A(2+)][HAsO4],H2O [Monoclinic P21b]
- Krautite
- [A(2+)][HAsO4],H2O [Triclinic P(-1)]
- Cobaltkoritnigite
- [A(2+)][HAsO4],2H2O [Monoclinic P2/m]
- Pharmacolite
- [A(3+)][AsO4],3.5H2O [Monoclinic ???]
- Kaňkite, Kankite
- [A(2+)2][B][AsO4]2,2H2O [Monoclinic P2/c]
- Brandtite
- [A(2+)2][B][AsO4]2,2H2O [Triclinic P(-1)]
- Parabrandtite
- Talmessite
- [A(2+)3][AsO4]2,4H2O [Monoclinic P21/n]
- Castellaroite
- [A(2+)3][AsO4]2,4H2O [Triclinic P(-1)]
- Sterlinghillite
- [A(2+)][B(2+)2][AsO4]2,8H2O [Tetragonal P4/n]
- Metazeunerite
- [A(2+)][B(2+)2][AsO4]2,12H2O [Tetragonal I4/mmm]
- Zeunerite
- [A(2+)3][AsO4]2,8H2O [Monoclinic I2/m,C2/m] Vivianite group
- Annabergite
- Erythrite
- Hörnesite, Hornesite
- Köttigite, Kottigite
- Parasymplesite
- Manganohörnesite, Manganohornesite
- [A(2+)3][AsO4]2,8H2O [Triclinic P(-1)]
- Symplesite
- [A(2+)3][AsO4]2,10H2O [Triclinic P(-1)]
- Rauenthalite
- [A(2+)3][AsO4]2,11H2O [Triclinic P(-1)]
- Phaunouxite
- [A5][AsO4]2,10H2O [Triclinic P(-1)]
- Geigerite
- [A(2+)5][(HAsO4)2|(AsO4)2],4H2O [Monoclinic C2/c]
- Villyaellenite
- Miguelromeroite
- [A(2+)5][(HAsO4)2|(AsO4)2],9H2O [Monoclinic P2/b]
- Guérinite, Guerinite
- [A(2+)5][(HAsO4)2|(AsO4)2],9H2O [Triclinic P(-1)]
- Ferrarisite
- [A(2+)4][B(2+)][(HAsO4)2|(AsO4)2],11H2O [Triclinic P(-1)]
- Picropharmacolite
- Hydroxide-Arsenate
- [A(2+)][B(2+)][OH|AsO4] [Orthorhombic Pnnm]
- Adamite
- [A(2+)][B(2+)][OH|AsO4] [Orthorhombic P222] Adelite group
- Austinite
- Arsendescloizite
- Conichalcite
- Duftite
- [A(2+)][B(2+)][OH|AsO4] [Monoclinic P2/n,P2/a] Olivenite group
- Olivenite
- Sarkinite
- Zincolivenite
- [A(2+)3][(OH)3|AsO4] [Monoclinic P2/b] Clinoclase group
- Clinoclase
- [A(2+)][B(3+)2][(OH)2|(AsO4)2] [Orthorhombic Cccm] Carminite group
- Carminite
- [A(2+)][B(2+)3][(OH)2|(AsO4)2] [Monoclinic A2/a]
- Bayldonite
- [A(2+)5][(OH)4|(AsO4)2] [Monoclinic P2/b]
- Cornubite
- [A(2+)5][(OH)4|(AsO4)2] [Triclinic P(-1)]
- Cornwallite
- [A(2+)][B(3+)3][(OH)6|(AsO4)2] [Trigonal R(-3)m]
- Segnitite
- [A(2+)5][B(2+)5][(OH)14|(AsO4)2] [Orthorhombic ???]
- Theisite
- [A(2+)5][OH|(AsO4)3] [Hexagonal P6/m]
- Johnbaumite
- Hydrate-Hydroxide-Arsenate
- [A(2+)2][OH|AsO4],H2O [Monoclinic P2/c]
- Legrandite
- [A(2+)][B(3+)2][(OH)2|(AsO4)2],4H2O [Monoclinic P12/c]
- Bendadaite
- [A(2+)][B(3+)2][(OH)2|(AsO4)2],4H2O [Triclinic P1]
- Coralloite
- [A(2+)2][B(3+)2][(OH)4|(AsO4)2],H2O [Monoclinic P2/m]
- [A(2+)3][B(3+)][(OH)3|(AsO4)2],4H2O [Orthorhombic mm2]
- Yukonite
- Chenevixite
- [A(2+)2][B(2+)3][(OH)4|(AsO4)2],9H2O [Hexagonal P6/mmc]
- Wallkilldellite
- Wallkilldellite-(Fe)
- [A(2+)][B(3+)3][(OH)5|(AsO4)2],H2O [Trigonal R3m]
- Philipsbornite
- [A(2+)6][(OH)6|(AsO4)2],H2O [Monoclinic P21/c]
- Philipsburgite
- [A(+)][B(3+)4][(OH)4|(AsO4)3],6-7H2O [Cubic I(-4)3m]
- Pharmacosiderite
- [A(2+)0.5][B(3+)4][(OH)4|(AsO4)3],5H2O [Tetragonal P(-4)2m]
- Bariopharmacosiderite
- [A(2+)][B(2+)6][(OH)6|HAsO4|(AsO4)2],3H2O [Hexagonal 6/m]
- Zálesíite, Zalesiite
- [A(3+)][B(2+)6][(OH)6|AsO4|(AsO4)2],3H2O [Hexagonal 6/m]
- Agardite-(Y)
- Mixite
- Chloride-Arsenate
- [A(2+)5][Cl|(AsO4)3] [Hexagonal P6/m]
- Mimetite
- [A(2+)3][B(2+)2][Cl|(AsO4)3] [Hexagonal P6/m2/m2/m]
- Hedyphane
- Hydrate-Chloride-Arsenate
- [A(+)][B(2+)][C(2+)5][Cl|(AsO4)4],5H2O [Monoclinic P21/n]
- Lavendulan
- Hydrate-Hydroxide-Chloride-Arsenate
- [A(2+)2][B(2+)5][C][Cl|(OH)6|(AsO4)4],6H2O [Monoclinic C2/m]
- Richelsdorfite
- Hydrate-Oxide-Arsenate
- [A(2+)2][B(3+)3][O2|(AsO4)3],3H2O [Monoclinic A2/a]
- Arseniosiderite
- Hydroxide-Oxide-Arsenate
- [A(3+)3][OH|O|(AsO4)2] [Triclinic P(-1)]
- Preisingerite
- Hydrate-Hydroxide-Carbonate-Arsenate
- [A(2+)2][B(2+)9][(OH)8|CO3|(AsO4)4],11H2O [Orthorhombic Pmma]
- Tyrolite
- Nesoborate-Arsenate
- [A(2+)2][AsO4|H4BO4] [Tetragonal I(-4)]
- Cahnite
- Hydroxide-Sulfate-Arsenate
- [A(2+)][B(3+)3][(OH)6|SO4|AsO4] [Trigonal R(-3)m] Beudantite group
- Beudantite
- Hidalgoite
- Hydrate-Hydroxide-Sulfate-Arsenate
- [A(2+)9][(OH)10|SO4|(AsO4)2],7H2O [Orthorhombic P222]
- Parnauite
- [A(3+)4][OH|SO4|(AsO4)3],15H2O [Orthorhombic P222]
- Zýkaite
- [A(2+)18][B(3+)2][(OH)2|(SO4)3|(AsO4)3],33H2O [Trigonal R(-3)m]
- Chalcophyllite
- Hydrate-Hydroxide-Carbonate-Sulfate-Arsenate
- [A(2+)15][(OH)14|(CO3)4|SO4|(AsO4)2],7H2O [Monoclinic P(-1)]
- Claraite
- Hydrate-Hydroxide-Molybdate-Arsenate
- [Mo8As2Fe3O36(OH)],4H2O [Monoclinic C2/m]
- Betpakdalite-CaCa
- Hydroxide-Arsenate-Nesosilicate-Sorosilicate[Si3O10]
- [A(2+)4][B6][(OH)6|AsO4|(SiO4)2|Si3O10] [Orthorhombic Pnmm]
- Ardennite-(As)
- Arsenate-Orthotellurate
- [A(2+)3][B(2+)3][(AsO4)2][TeO6] [Trigonal P321]
- Dugganite