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Minerals
6,131 minerals
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Arsenuranospathite | Al(UO₂)₂(AsO₄)₂F·20H₂O | Orthorhombic | 2.0 | 2.54 g/cm³ |
| Arsenuranylite | Ca(UO₂)₄(AsO₄)₂(OH)₄ * 6H₂O | Orthorhombic | — | — |
| Arsiccioite | AgHg₂TlAs₂S₆ | Tetragonal | — | — |
| Arsmirandite | Na₁₈Cu₁₂Fe³⁺O₈(AsO₄)₈Cl₅ | Monoclinic | — | — |
| Arthurite | CuFe³⁺₂(AsO₄)₂(OH)₂ * 4H₂O | Monoclinic | — | — |
| Artinite | Mg₂CO₃(OH)₂·3H₂O | Monoclinic | 2.5 | — |
| Artroeite | PbAlF₃(OH)₂ | Triclinic | — | 5.24 g/cm³ |
| Artsmithite | (Hg+₂)₂Al(PO₄)₁.₇₄(OH)₁.₇₈ | Monoclinic | — | — |
| Arzakite | Hg₃S₂Br₂ | Monoclinic | — | 6.74 g/cm³ |
| Arzamastsevite | K₆Al₅Si₆O₂₀(OH)₄Cl | Tetragonal | — | — |
| Arzrunite | Pb₂Cu₄SO₄(OH)₄Cl₆·2H₂O | — | — | — |
| Asagiite | NiCu₄(SO₄)(OH)₆·6H₂O | — | — | — |
| Asbecasite | Ca₃(Ti,Sn₄+)Be₂(AsO₃)₆(SiO₄)₂ | Trigonal | — | — |
| Asbolane | Mn⁴⁺(O,OH)₂·(Co,Ni,Mg,Ca)ₓ(OH)₂ₓ·nH₂O | Hexagonal | — | — |
| Aschamalmite | Pb₆₋₃ₓBi₂₊ₓS₉ | Monoclinic | — | — |
| Ashburtonite | HCu₄Pb₄Si₄O₁₂(HCO₃)₄(OH)₄Cl | Tetragonal | — | — |
| Ashcroftine-(Y) | K₅Na₅Y₁₂Si₂₈O₇₀(OH)₂(CO₃)₈·8H₂O | Tetragonal | — | — |
| Ashoverite | Zn(OH)₂ | Tetragonal | — | 3.20 g/cm³ |
| Asimowite | Fe₂SiO₄ | Orthorhombic | — | 4.47 g/cm³ |
| Asisite | Pb₇SiO₈Cl₂ | Tetragonal | — | — |
| Aspedamite | ☐ ₁₂(Fe²⁺₃Fe²⁺)Nb₄(ThNb₉Fe²⁺₃ Ti₄+O₄₂)(H₂O)₉(OH)₃ | Cubic | — | — |
| Aspidolite | NaMg₃(AlSi₃O₁₀)(OH)₂ | Monoclinic | — | — |
| Asselbornite | Pb(UO₂)₄(BiO)₃(AsO₄)₂(OH)₇·4H₂O | Cubic | — | — |
| Astrocyanite-(Ce) | Cu₂(Ce,Nd,La)₂(UO₂)(CO₃)₅(OH)₂ * 1.5H₂O | Hexagonal | — | — |
| Astrophyllite | K₂NaFe²⁺₇Ti₂Si₈O₂₈(OH)₄F | Triclinic | 3.0 | — |
| Atacamite | Cu₂Cl(OH)₃ | Orthorhombic | — | — |
| Atelestite | Bi₂(AsO₄)O(OH) | Monoclinic | — | — |
| Atelisite-(Y) | Y₄Si₃O₈(OH)₈ | Tetragonal | — | — |
| Atencioite | Ca₂Fe²⁺₃Mg₂Be₄(PO₄)₆(OH)₄ * 6H₂O | Triclinic | — | — |
| Athabascaite | Cu₅Se₄ | Orthorhombic | 2.5 | — |
| Atheneite | Pd₂As₀.₇₅Hg₀.₂₅ | Hexagonal | 5.0 | 10.20 g/cm³ |
| Atlasovite | K(BiO)Cu₆Fe³⁺(SO₄)₅O₃Cl | Tetragonal | — | — |
| Atokite | Pd₃Sn | Cubic | 4.5 | 11.30 g/cm³ |
| Attakolite | (Ca,Sr)Mn(Al,Fe)₄(HPO₄,PO₄)₃(SiO₄,PO₄)(OH)₄ | Monoclinic | — | — |
| Attikaite | Ca₃Cu₂Al₂(AsO₄)₄(OH)₄·2H₂O | Orthorhombic | — | — |
| Aubertite | Cu²⁺Al(SO₄)₂Cl·14H₂O | Triclinic | — | — |
| Auerbakhite | — | Orthorhombic | — | — |
| Augelite | Al₂PO₄(OH)₃ | Monoclinic | — | — |
| Augite | (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)₂O | Monoclinic | — | — |
| Auriacusite | Fe³⁺Cu²⁺(AsO₄)O | Orthorhombic | — | — |
| Aurichalcite | (Zn,Cu²⁺)₅(CO₃)₂(OH)₆ | Monoclinic | 2.0 | — |
| Auricupride | AuCu₃ | Cubic | — | 12.35 g/cm³ |
| Aurihydrargyrumite | Au₆Hg₅ | Hexagonal | 2.5 | 16.09 g/cm³ |
| Aurivilliusite | Hg⁺Hg²⁺OI | Monoclinic | — | — |
| Auropearceite | [Ag₉AuS₄][Ag₆As₂S₇] | Trigonal | — | — |
| Auropolybasite | [Ag₉AuS₄][Ag₆Sb₂S₇] | Trigonal | — | — |
| Aurorite | Mn²⁺Mn⁴⁺₃O₇·3H₂O | Trigonal | — | — |
| Auroselenide | AuSe | Monoclinic | — | 9.17 g/cm³ |
| Aurostibite | AuSb₂ | Cubic | — | 9.57 g/cm³ |
| Austinite | CaZnAsO₄(OH) | Orthorhombic | — | 4.32 g/cm³ |
| Autunite | Ca(UO₂)₂(PO₄)₂·(10-12)H₂O | Orthorhombic | — | — |
| Avdeevite | NaAl₄(Be₅Li)(Si₆O₁₈)₂(H₂O)1-2 | Hexagonal | — | — |
| Avdoninite | K₂Cu₅Cl₈(OH)₄·H₂O | Monoclinic | — | — |
| Averievite | Cu₆(VO₄)₂O₂Cl₂ | Hexagonal | — | — |
| Avicennite | Tl₂O₃ | Cubic | — | — |
| Avogadrite | KBF₄ | Orthorhombic | — | 2.63 g/cm³ |
| Awaruite | Ni₃Fe | Cubic | — | — |
| Axelite | Na₁₄Cu₇(AsO₄)₈F₂Cl₂ | Orthorhombic | — | — |
| Axinite-(Fe) | — | Triclinic | — | — |
| Axinite-(Mg) | Ca₂MgAl₂BSi₄O₁₅OH | Triclinic | — | — |
| Axinite-(Mn) | Ca₂Mn²⁺Al₂BSi₄O₁₅(OH) | Triclinic | — | — |
| Azoproite | Mg₂(Ti₀.₅Mg₀.₅)O₂(BO₃) | Orthorhombic | 5.5 | — |
| Azurite | Cu₃(CO₃)₂(OH)₂ | Monoclinic | 3.8 | 3.75 g/cm³ |
| Babefphite | BaBePO₄F | Tetragonal | — | 4.33 g/cm³ |
| Babingtonite | Ca₂(Fe,Mn)FeSi₅O₁₄(OH) | Triclinic | — | — |
| Babkinite | Pb₂Bi₂(S,Se)₃ | — | — | — |
| Babunaite-(Nd) | NdAsO₄ | Tetragonal | — | 6.16 g/cm³ |
| Babánekite | Cu₃(AsO₄)₂·8H₂O | Monoclinic | — | — |
| Bacaferrite | BaCaFe₄O₈ | Trigonal | — | — |
| Backite | Pb₂AlTeO₆Cl | Trigonal | — | — |
| Badakhshanite-(Y) | Y₂Mn₄Al(Si₂B₇BeO₂₄) | Orthorhombic | — | — |
| Badalovite | NaNaMg(MgFe³⁺)(AsO₄)₃ | Monoclinic | — | — |
| Baddeleyite | ZrO₂ | Monoclinic | 6.5 | 5.78 g/cm³ |
| Badengzhuite | — | Hexagonal | — | — |
| Bafertisite | Ba₂(Fe²⁺)₄Ti₂(Si₂O₇)₂O₂(OH)₂F₂ | Monoclinic | — | — |
| Baghdadite | Ca₃(Zr,Ti)(Si₂O₇)O₂ | Monoclinic | — | — |
| Bahariyaite | — | Orthorhombic | — | — |
| Bahianite | Al₅Sb⁵⁺₃O₁₄(OH)₂ | Monoclinic | 9.0 | — |
| Baiamareite | Ag₄Pb₁₂Fe₄Sb₂₀S₄₈ | Monoclinic | — | — |
| Baileychlore | (Zn,Fe²⁺,Al,Mg)₆(Si,Al)₄O₁₀(OH)₈ | Triclinic | — | — |