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Minerals containing arsenic
726 minerals
Arsenic — element
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Oregonite | Ni₂FeAs₂ | Hexagonal | 5.0 | — |
| Orpiment | As₂S₃ | Monoclinic | — | — |
| Orthogersdorffite | NiAsS | Orthorhombic | — | 6.02 g/cm³ |
| Orthowalpurgite | (BiO)₄(UO₂)(AsO₄)₂·2H₂O | Orthorhombic | — | — |
| Osarsite | OsAsS | Monoclinic | — | — |
| Oyonite | Ag₃Mn₂Pb₄Sb₇As₄S₂₄ | Monoclinic | — | — |
| Ozerovaite | Na₂KAl₃(AsO₄)₄ | Orthorhombic | — | — |
| Packratite | Ca₁₁(H₂O)₅₉(As³⁺V⁵⁺₁₀V⁴⁺₂As⁵⁺₆O₅₁)₂∙24H₂O | Triclinic | — | — |
| Paganoite | NiBi(AsO₄)O | Triclinic | — | 6.76 g/cm³ |
| Palarstanide | Pd₅(Sn,As)₂ | Hexagonal | — | 10.27 g/cm³ |
| Palladoarsenide | Pd₂As | Monoclinic | 5.0 | 10.14 g/cm³ |
| Palladobismutharsenide | Pd₂(As,Bi) | Orthorhombic | 5.0 | 10.80 g/cm³ |
| Palladodymite | Pd₂As | Orthorhombic | 5.5 | 10.14 g/cm³ |
| Pansnerite | K₃Na₃(Fe³⁺,Al)₆(AsO₄)₈ | Orthorhombic | — | — |
| Paraberzeliite | NaCa₂Mg₂(AsO₄)₃ | Monoclinic | — | — |
| Parabrandtite | Ca₂Mn²⁺(AsO₄)₂ * 2H₂O | — | — | — |
| Paradamite | Zn₂AsO₄(OH) | — | — | 4.23 g/cm³ |
| Paradimorphite | As₄S₃ | Orthorhombic | — | — |
| Paradocrasite | Sb₃As | Monoclinic | — | — |
| Paragersdorffite | NiAsS | Cubic | — | 6.02 g/cm³ |
| Paralammerite | Cu₃(AsO₄)₂ | Monoclinic | — | 5.25 g/cm³ |
| Paraniite-(Y) | Ca₂Y(AsO₄)(WO₄)₂ | Tetragonal | — | 5.69 g/cm³ |
| Pararammelsbergite | NiAs₂ | Orthorhombic | — | 7.11 g/cm³ |
| Pararealgar | As₄S₄ | Monoclinic | — | — |
| Pararsenolamprite | (As,Sb) | Orthorhombic | — | — |
| Parascorodite | FeAsO₄ * 2H₂O | — | — | — |
| Parasterryite | Ag₄Pb₂₀(Sb,As)₂₄S₅₈ | Monoclinic | — | — |
| Parasymplesite | Fe²⁺₃(AsO₄)₂·8H₂O | — | — | — |
| Parnauite | Cu₉(AsO₄)₂(SO₄)(OH)₁₀ * 7H₂O | — | — | — |
| Parwelite | Mn₁₀Sb₂As₂Si₂O₂₄ | — | — | — |
| Paulmooreite | Pb₂[As₂O₅] | Monoclinic | — | — |
| Paxite | CuAs₂ | — | — | — |
| Pearceite | Cu(Ag,Cu)₆Ag₉As₂S₁₁ | Trigonal | — | — |
| Penberthycroftite | [Al₆(AsO₄)₃(OH)₉(H₂O)₅]·8H₂O | Monoclinic | — | — |
| Perchukite-(Y) | PbYAsSi₂O₈ | Monoclinic | — | — |
| Peterchinite | Zn₃Zn₂(OH)₆As[O₃(OH)₃] | Monoclinic | — | — |
| Petewilliamsite | (Ni,Co)₃₀(As₂O₇)₁₅ | Monoclinic | — | — |
| Pharmacoalumite | KAl₄(AsO₄)₃(OH)₄ * 6.₅H₂O | Cubic | — | — |
| Pharmacolite | Ca(AsO₃OH)·2H₂O | Monoclinic | — | — |
| Pharmacosiderite | KFe³⁺₄(AsO₄)₃(OH)₄ * 6-₇H₂O | Cubic | 2.5 | — |
| Pharmazincite | KZn(AsO₄) | Hexagonal | — | — |
| Phaunouxite | Ca₃(AsO₄)₂ * 1₁H₂O | — | — | — |
| Philipsbornite | PbAl₃(AsO₄)(AsO₃OH)(OH)₆ | — | — | — |
| Philipsburgite | (Cu,Zn)₆(AsO₄,PO₄)₂(OH)₆ * H₂O | — | — | — |
| Philrothite | TlAs₃S₅ | Monoclinic | — | — |
| Picaite | NaCa[AsO₃OH][AsO₂(OH)₂] | Monoclinic | — | — |
| Piccoliite | NaCaMn³⁺₂(AsO₄)₂O(OH) | Orthorhombic | — | — |
| Picropharmacolite | Ca₄Mg(AsO₃OH)₂(AsO₄)₂·11H₂O | Triclinic | — | — |
| Pierrotite | Tl₂(Sb,As)₁₀S₁₆ | — | — | — |
| Pitticite | [Fe,AsO₄,SO₄,H₂O] (?) | Amorphous | — | — |
| Platarsite | PtAsS | Cubic | — | — |
| Playfairite | Pb₁₆(Sb,As)₁₉S₄₄Cl | Monoclinic | 3.5 | — |
| Plumboagardite | (Pb,REE,Ca)Cu₆(AsO₄)₃(OH)₆·3H₂O | Hexagonal | 3.0 | — |
| Plumbopharmacosiderite | Pb₀.₅Fe³⁺₄(AsO₄)₃(OH)₄·5H₂O | Cubic | — | — |
| Polkanovite | Rh₁₂As₇ | Hexagonal | — | — |
| Polloneite | AgPb₄₆As₂₆Sb₂₃S₁₂₀ | Monoclinic | — | — |
| Polyarsite | Na₇CaMgCu₂(AsO₄)₄F₂Cl | Monoclinic | — | — |
| Polybasite | [Ag₉CuS₄][(Ag,Cu)₆(Sb,As)₂S₇] | Monoclinic | — | — |
| Popovite | Cu₅O₂(AsO₄)₂ | Triclinic | — | — |
| Pradetite | CoCu₄(AsO₄)₂(AsO₃OH)₂·9H₂O | — | — | — |
| Preisingerite | Bi₃(AsO₄)₂O(OH) | — | — | — |
| Prosperite | Ca₂Zn₄(AsO₄)₄ * H₂O | — | 4.5 | — |
| Protochabournéite | Tl₂Pb(Sb,As)₁₀S₁₇ | Triclinic | — | — |
| Proustite | Ag₃AsS₃ | Trigonal | — | 5.39 g/cm³ |
| Pseudomertieite | Pd₁₁(Sb,As)₄ | Hexagonal | — | — |
| Písekite-(Y) | (Y,As,Ca,Fe,U)(Nb,Ti,Ta)O₄ | — | — | — |
| Quadratite | AgCdAsS₃ | Tetragonal | — | 5.31 g/cm³ |
| Raberite | Tl₅Ag₄As₆SbS₁₅ | Triclinic | — | — |
| Radovanite | Cu₂Fe³⁺(AsO₄)(HAs³⁺O₃)₂ * H₂O | — | — | — |
| Ralphcannonite | AgZn₂TlAs₂S₆ | Tetragonal | — | — |
| Rammelsbergite | NiAs₂ | Orthorhombic | — | 7.11 g/cm³ |
| Rappoldite | PbCo₂(AsO₄)₂·2H₂O | Triclinic | 4.5 | 5.28 g/cm³ |
| Rathite | Ag₂Pb₁₂₋ₓTlₓ/₂As₁₈₊ₓ/₂S₄₀ | — | 3.0 | — |
| Rathite-IV | Pb₃As₅S₁₀ | Monoclinic | — | — |
| Rauchite | Ni(UO₂)₂(AsO₄)₂·10H₂O | Triclinic | — | — |
| Rauenthalite | Ca₃(AsO₄)₂ * 10H₂O | — | — | — |
| Realgar | AsS | Monoclinic | — | 3.26 g/cm³ |
| Rebulite | Tl₅Sb₅As₈S₂₂ | — | — | — |
| Reckibachite | Ag₂Pb₁₂As₁₄Sb₄S₄₀ | Monoclinic | — | — |
| Reinerite | Zn₃(As³⁺O₃)₂ | Orthorhombic | — | — |