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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
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(2+)18][B(3+)2][(OH)2|(SO4)3|(AsO4)3],33H2O [Trigonal R(-3)m]
Chalcophyllite
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