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Minerals
6,131 minerals
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Aradite | BaCa₆[(SiO₄)(VO₄)](VO₄)₂F | Trigonal | — | — |
| Aragonite | CaCO₃ | Orthorhombic | 3.8 | 2.93 g/cm³ |
| Arakiite | ZnMn²⁺₁₂Fe³⁺₂(As³⁺O₃)(As⁵⁺O₄)₂(OH)₂₃ | Monoclinic | — | — |
| Aramayoite | Ag₃Sb₂(Bi,Sb)S₆ | Triclinic | 2.5 | — |
| Arangasite | Al₂(SO₄)(PO₄)F·9H₂O | Monoclinic | — | — |
| Arapovite | — | Tetragonal | — | — |
| Aravaipaite | Pb₃AlF₉·H₂O | Triclinic | — | — |
| Aravaite | Ba₂Ca₁₈(SiO₄)₆(PO₄)₃(CO₃)F₃O | Trigonal | — | — |
| Arcanite | K₂[SO₄] | Orthorhombic | 2.0 | — |
| Archerite | H₂KPO₄ | Tetragonal | — | 2.39 g/cm³ |
| Arctite | Na₅Ca₇Ba(PO₄)₆F₃ | Trigonal | 5.0 | — |
| Arcubisite | Ag₆CuBiS₄ | Orthorhombic | — | — |
| Ardaite | Pb₁₇Sb₁₅S₃₅Cl₉ | Monoclinic | — | — |
| Ardealite | Ca₂(PO₃OH)(SO₄)·4H₂O | Monoclinic | — | — |
| Ardennite-(As) | Mn²⁺₄Al₄(AlMg)(VO₄)(SiO₄)₂(Si₃O₁₀)(OH)₆ | Orthorhombic | — | — |
| Ardennite-(V) | Mn²⁺₄Al₄(AlMg)(VO₄)(SiO₄)₂(Si₃O₁₀)(OH)₆ | Orthorhombic | — | — |
| Arfvedsonite | NaNa₂(Fe²⁺₄Fe³⁺)Si₈O₂₂(OH)₂ | Monoclinic | — | — |
| Argandite | Mn₇(VO₄)₂(OH)₈ | Monoclinic | — | — |
| Argentobaumhauerite | Ag₁.₅Pb₂₂As₃₃.₅S₇₂ | Monoclinic | 3.0 | — |
| Argentodufrénoysite | — | Triclinic | — | — |
| Argentojarosite | AgFe³⁺₃(SO₄)₂(OH)₆ | Trigonal | — | — |
| Argentoliveingite | AgxPb₄₀-₂xAs₄₈+xS₁₁₂ | Triclinic | — | — |
| Argentopearceite | Ag₁₆As₂S₁₁ | Trigonal | — | — |
| Argentopentlandite | Ag(Fe,Ni)₈S₈ | Cubic | — | — |
| Argentopolybasite | [Ag₉AgS₄][Ag₆Sb₂S₇] | Trigonal | — | — |
| Argentopyrite | AgFe₂S₃ | Monoclinic | — | — |
| Argentotennantite-(Fe) | Ag₆(Cu₄Fe₂)As₄S₁₂S | Cubic | — | — |
| Argentotennantite-(Zn) | Ag₆Cu₄(Fe,Zn)₂As₄S₁₃ | Cubic | — | — |
| Argentotetrahedrite-(Fe) | Ag₆Cu₄(Fe,Zn)₂Sb₄S₁₃ | Cubic | — | — |
| Argentotetrahedrite-(Hg) | — | Cubic | — | — |
| Argentotetrahedrite-(Zn) | — | Cubic | — | — |
| Argesite | (NH₄)₇Bi₃Cl₁₆ | Trigonal | — | — |
| Argyrodite | Ag₈GeS₆ | Orthorhombic | — | 6.20 g/cm³ |
| Arhbarite | — | Triclinic | — | — |
| Ariegilatite | BaCa₁₂(SiO₄)₄(PO₄)₂F₂O | Trigonal | — | — |
| Arisite-(Ce) | NaCe₂(CO₃)₂[F₂ₓ(CO₃)₁₋ₓ]F | Hexagonal | — | — |
| Arisite-(La) | NaLa₂(CO₃)₂[F₂ₓ(CO₃)₁₋ₓ]F | Hexagonal | — | — |
| Aristarainite | Na₂MgB₁₂O₂₀ * 8H₂O | Monoclinic | — | — |
| Armalcolite | (Mg,Fe²⁺)Ti₂O₅ | Orthorhombic | — | — |
| Armangite | Mn²⁺₂₆As³⁺₁₈O₅₀(CO₃)(OH)₄ | Trigonal | — | — |
| Armbrusterite | K₅Na₇Mn₁₅[(Si₉O₂₂)₄](OH)₁₀ * 4H₂O | Monoclinic | 3.5 | — |
| Armellinoite-(Ce) | Ca₄Ce₄+(AsO₄)₄·H₂O | Tetragonal | — | — |
| Armenite | BaCa₂(Al₆Si₉)O₃₀·2H₂O | Orthorhombic | — | 2.76 g/cm³ |
| Armstrongite | CaZr(Si₆O₁₅)·2H₂O | Monoclinic | — | — |
| Arrheniusite-(Ce) | — | Trigonal | — | — |
| Arrojadite-(BaNa) | BaNa₃(NaCa)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)(OH) | Monoclinic | — | — |
| Arrojadite-(KFe) | {KNa}{Fe²⁺☐}{Ca}{Na₂☐}{Fe²⁺₁₃}{Al}(PO₄)₁₁(HPO₄)(OH)₂ | Monoclinic | — | — |
| Arrojadite-(KNa) | KNa₃(CaNa₂)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)(OH)₂ | Monoclinic | — | — |
| Arrojadite-(PbFe) | PbFe²⁺(CaNa₂)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)(OH)₂ | Monoclinic | — | — |
| Arrojadite-(SrFe) | SrFe²⁺(CaNa₂)Fe²⁺₁₃Al(PO₄)₁₁(PO₃OH)(OH)₂ | Monoclinic | — | — |
| Arsenatrotitanite | NaTi(AsO₄)O | Monoclinic | — | 3.72 g/cm³ |
| Arsenbrackebuschite | Pb₂Fe³⁺(AsO₄)₂(OH) | Monoclinic | — | — |
| Arsendescloizite | — | Orthorhombic | 4.0 | — |
| Arsenic (native) | As | Trigonal | 3.5 | 5.68 g/cm³ |
| Arseniopleite | (Ca,Na)NaMn²⁺(Mn²⁺,Mg,Fe²⁺)₂(AsO₄)₃ | Monoclinic | — | — |
| Arseniosiderite | Ca₂Fe³⁺₃O₂(AsO₄)₃(H₂O)₂·H₂O | Monoclinic | 4.5 | — |
| Arsenmarcobaldiite | — | Triclinic | — | — |
| Arsenmedaite | Mn²⁺₆ As₅+Si₅O₁₈(OH) | Monoclinic | — | — |
| Arsenobenauite | SrFe³⁺₃(AsO₄)(AsO₃OH)(OH)₆ | Trigonal | — | — |
| Arsenoclasite | — | Orthorhombic | — | — |
| Arsenocrandallite | CaAl₃(AsO₄)(AsO₃OH)(OH)₆ | Trigonal | — | — |
| Arsenoflorencite-(Ce) | CeAl₃(AsO₄)₂(OH)₆ | Trigonal | — | — |
| Arsenoflorencite-(La) | LaAl₃(AsO₄)₂(OH)₆ | Trigonal | — | — |
| Arsenoflorencite-(Nd) | NdAl₃(AsO₄)₂(OH)₆ | — | — | — |
| Arsenogorceixite | BaAl₃(AsO₄)(AsO₃OH)(OH)₆ | Trigonal | — | — |
| Arsenogoyazite | SrAl₃(AsO₄)(AsO₃OH)(OH)₆ | Trigonal | — | — |
| Arsenohauchecornite | Ni₁₈Bi₃AsS₁₆ | Tetragonal | — | — |
| Arsenohopeite | Zn₃(AsO₄)₂·4H₂O | Orthorhombic | 3.0 | 3.42 g/cm³ |
| Arsenolamprite | As | Orthorhombic | 2.0 | — |
| Arsenolite | As₂O₃ | Cubic | 1.5 | — |
| Arsenopalladinite | Pd₈As₃ | Triclinic | 4.0 | 10.40 g/cm³ |
| Arsenopyrite | FeAsS | Monoclinic | — | 6.35 g/cm³ |
| Arsenosabugalite | — | Triclinic | — | — |
| Arsenotučekite | — | Tetragonal | — | — |
| Arsenovanmeersscheite | U(UO₂)₃(AsO₄)₂(OH)₆·4H₂O | Orthorhombic | — | — |
| Arsenowagnerite | Mg₂(AsO₄)F | Monoclinic | — | — |
| Arsenoústalečite | (Cu₄Cu₂)(Cu₄Cu⁺₂)(As₂Te₂)Se₁₂Se | Cubic | — | — |
| Arsenquatrandorite | Ag₁₇.₆Pb₁₂.₈Sb₃₈.₁As₁₁.₅S₉₆ | Monoclinic | — | — |
| Arsentsumebite | — | Monoclinic | — | — |
| Arsenudinaite | NaMg₄(AsO₄)₃ | Tetragonal | — | 3.83 g/cm³ |