| Abellaite | NaPb₂(CO₃)₂(OH) | Trigonal | — | — |
| Abelloemringerite | Cu₂Pb₂Mn³⁺Mn⁴⁺₃O₁₁(OH)(H₂O)₂·H₂O | Orthorhombic | — | — |
| Abelsonite | NiC₃₁H₃₂N₄ | Triclinic | 2.5 | — |
| Abenakiite-(Ce) | Na₂₆Ce₆(Si₆O₁₈)(PO₄)₆(CO₃)₆(SO₂)O | Trigonal | — | — |
| Abernathyite | K(UO₂)(AsO₄)·3H₂O | Tetragonal | — | — |
| Abhurite | Sn²⁺₂₁O₆(OH)₁₄Cl₁₆ | Trigonal | 2.0 | — |
| Abramovite | Pb₂SnInBiS₇ | Triclinic | — | — |
| Abswurmbachite | Cu²⁺(Mn³⁺)₆O₈(SiO₄) | Tetragonal | 6.5 | 4.96 g/cm³ |
| Abuite | CaAl₂(PO₄)₂F₂ | Orthorhombic | — | — |
| Acanthite | Ag₂S | Monoclinic | — | — |
| Achalaite | Fe²⁺TiNb₂O₈ | Monoclinic | — | — |
| Achyrophanite | (K,Na)₃(Fe³⁺,Ti,Al,Mg)₅O₂(AsO₄)₅ | Orthorhombic | — | — |
| Achávalite | FeSe | Hexagonal | 2.5 | 4.94 g/cm³ |
| Acmonidesite | (NH₄,K,Pb)₈NaFe²⁺₄(SO₄)₅Cl₈ | Orthorhombic | — | — |
| Actinolite | Ca₂(Mg,Fe)₅[OH|Si₄O₁₁]₂ | Monoclinic | — | — |
| Acuminite | SrAlF₄(OH)·H₂O | Monoclinic | 3.5 | — |
| Adachiite | CaFe²⁺₃Al₆(Si₅AlO₁₈)(BO₃)₃(OH)₃(OH) | Trigonal | 7.0 | — |
| Adamite | Zn₂AsO₄(OH) | Orthorhombic | 3.5 | 4.23 g/cm³ |
| Adamsite-(Y) | NaY(CO₃)₂·6H₂O | Triclinic | 3.0 | — |
| Adanite | — | Monoclinic | 2.5 | — |
| Addibischoffite | Ca₂Al₆Al₆O₂₀ | Triclinic | — | — |
| Adelite | CaMgAsO₄(OH) | Orthorhombic | 5.0 | — |
| Admontite | MgB₆O₁₀·7H₂O | Monoclinic | — | — |
| Adolfpateraite | K(UO₂)(SO₄)(OH)(H₂O) | Monoclinic | — | — |
| Adranosite | (NH₄)₄NaAl₂(SO₄)₄Cl(OH)₂ | Tetragonal | — | — |
| Adranosite-(Fe) | (NH₄)₄NaFe₂(SO₄)₄Cl(OH)₂ | Tetragonal | — | — |
| Adrianite | Ca₁₂(Al₄Mg₃Si₇)O₃₂Cl₆ | Cubic | — | — |
| Aegirine | NaFe³⁺Si₂O₆ | Monoclinic | 6.3 | — |
| Aegirine-augite | (Ca,Na)(Fe³⁺,Mg,Fe²⁺)Si₂O₆ | Monoclinic | — | — |
| Aenigmatite | Na₄[Fe²⁺₁₀Ti₂]O₄[Si₁₂O₃₆] | Triclinic | 5.5 | — |
| Aerinite | (Ca,Na)₆(Fe³⁺,Fe²⁺,Mg,Al)₄(Al,Mg)₆Si₁₂O₃₆(OH)₁₂(CO₃)·12H₂O | — | 3.0 | 2.48 g/cm³ |
| Aerugite | Ni₈.₅(AsO₄)₂As⁵⁺O₈ | Trigonal | 4.0 | 5.85 g/cm³ |
| Aeschynite-(Ce) | Ce(TiNb)O₆ | Orthorhombic | — | — |
| Aeschynite-(Nd) | Nd(TiNb)O₆ | — | — | — |
| Aeschynite-(Y) | Y(TiNb)O₆ | Orthorhombic | — | — |
| Afghanite | (Na,K)₂₂Ca₁₀(Si₂₄Al₂₄)O₉₆(SO₄)₆Cl₆ | Trigonal | — | — |
| Afmite | Al₃(OH)₄(H₂O)₃(PO₄)(PO₃OH)·H₂O | Triclinic | — | — |
| Afwillite | Ca₃[SiO₃(OH)]₂·2H₂O | Monoclinic | — | — |
| Agaite | Pb₃Cu²⁺Te⁶⁺O₅(OH)₂(CO₃) | Orthorhombic | — | — |
| Agakhanovite-(Y) | YCa☐₂KBe₃Si₁₂O₃₀ | Hexagonal | 6.0 | — |
| Agardite-(Ce) | CeCu²⁺₆(AsO₄)₃(OH)₆·3H₂O | Hexagonal | 3.0 | — |
| Agardite-(La) | LaCu²⁺₆(AsO₄)₃(OH)₆·3H₂O | Hexagonal | — | — |
| Agardite-(Nd) | NdCu²⁺₆(AsO₄)₃(OH)₆·3H₂O | Hexagonal | — | — |
| Agardite-(Y) | YCu²⁺₆(AsO₄)₃(OH)₆·3H₂O | Hexagonal | — | — |
| Agmantinite | Ag₂MnSnS₄ | Orthorhombic | — | — |
| Agrellite | NaCa₂Si₄O₁₀F | Triclinic | 5.5 | — |
| Agricolaite | K₄(UO₂)(CO₃)₃ | Monoclinic | 4.0 | 3.53 g/cm³ |
| Agrinierite | K₂Ca[(UO₂)₃O₃(OH)₂]₂·5H₂O | Orthorhombic | — | — |
| Aguilarite | Ag₄SeS | Orthorhombic | 2.5 | — |
| Agujaite | Na₆Al₆(H₂O)₁₅(OH)₃(AsO₄)₅(AsO₃OH)₃⋅3H₂O | Trigonal | — | — |
| Aheylite | Fe²⁺Al₆(PO₄)₄(OH)₈·4H₂O | Triclinic | — | — |
| Ahlfeldite | NiSeO₃·2H₂O | Monoclinic | — | — |
| Ahrensite | γ-Fe₂(SiO₄) | Cubic | 6.0 | — |
| Aikinite | CuPbBiS₃ | Orthorhombic | — | — |
| Aiolosite | Na₂(Na₂Bi)(SO₄)₃Cl | Hexagonal | — | — |
| Ajoite | K₃Cu²⁺₂₀Al₃Si₂₉O₇₆(OH)₁₆·8H₂O | Triclinic | — | — |
| Akaganeite | (Fe³⁺,Ni²⁺)₈(OH,O)₁₆Cl₁.₂₅·nH₂O | Monoclinic | — | — |
| Akaogiite | TiO₂ | Monoclinic | — | 3.86 g/cm³ |
| Akasakaite-(Ce) | (CaCe)(AlAlMn²⁺)O[Si₂O₇][SiO₄](OH) | Monoclinic | — | — |
| Akasakaite-(La) | (CaLa)(AlAlMn²⁺)O[Si₂O₇][SiO₄](OH) | Monoclinic | — | — |
| Akatoreite | Mn²⁺₉Al₂Si₈O₂₄(OH)₈ | Triclinic | 6.0 | — |
| Akdalaite | Al₅O₇(OH) | Hexagonal | — | — |
| Akhtenskite | MnO₂ | Hexagonal | 2.0 | — |
| Akimotoite | MgSiO₃ | Trigonal | — | — |
| Aklimaite | Ca₄[Si₂O₅(OH)₂](OH)₄·5H₂O | Monoclinic | — | — |
| Akopovaite | Al₄Li₂(OH)₁₂(CO₃)(H₂O)₃ | Monoclinic | — | — |
| Akrochordite | Mn²⁺₅(AsO₄)₂(OH)₄·4H₂O | Monoclinic | 3.5 | — |
| Aksaite | MgB₆O₇(OH)₆·2H₂O | Orthorhombic | — | — |
| Aktashite | Cu₆Hg₃As₄S₁₂ | Trigonal | — | — |
| Alabandite | MnS | Cubic | — | 4.19 g/cm³ |
| Alacránite | As₈S₉ | Monoclinic | 1.5 | — |
| Alamosite | PbSiO₃ | Monoclinic | 4.5 | 6.31 g/cm³ |
| Alarsite | AlAsO₄ | Trigonal | — | 3.35 g/cm³ |
| Albertiniite | Fe²⁺(SO₃)·3H₂O | Monoclinic | — | — |
| Albite | NaAlSi₃O₈ | Triclinic | — | 2.64 g/cm³ |
| Albrechtschraufite | MgCa₄F₂[UO₂(CO₃)₃]₂·17-18H₂O | Triclinic | 2.8 | 2.60 g/cm³ |
| Alburnite | Ag₈GeTe₂S₄ | Cubic | — | — |
| Alcantarillaite | — | Orthorhombic | — | — |
| Alcaparrosaite | K₃Ti⁴⁺Fe³⁺(SO₄)₄O(H₂O)₂ | Monoclinic | — | — |
| Aldermanite | Mg₅Al₁₂(PO₄)₈(OH)₂₂·32H₂O | Orthorhombic | 2.0 | — |
| Aldomarinoite | — | Monoclinic | — | — |
| Aldridgeite | (Cd,Ca)(Cu,Zn)₄(SO₄)₂(OH)₆·3H₂O | Monoclinic | — | — |
| Aleksandrovite | KCa₇Sn₂Li₃Si₁₂O₃₆F₂ | Monoclinic | — | — |
| Aleksite | PbBi₂Te₂S₂ | Trigonal | 2.0 | — |
| Aleutite | [Cu₅O₂](AsO₄)(VO₄)·(Cu,K,Pb,Rb,Cs,)Cl | Monoclinic | — | — |
| Alexearlite | Hg₃(MoO₄)S₂ | Orthorhombic | — | — |
| Alexkhomyakovite | K₆(Ca₂Na)(CO₃)₅Cl·6H₂O | Hexagonal | — | — |
| Alexkuznetsovite-(La) | — | Monoclinic | — | — |
| Alexshubnikovite | Ca₂Cu₉(AsO₄)₄(OH)₉Cl(H₂O)₈·2H₂O | Monoclinic | — | — |
| Alflarsenite | NaCa₂Be₃Si₄O₁₃(OH)·2H₂O | Monoclinic | — | — |
| Alforsite | Ba₅(PO₄)₃Cl | Hexagonal | 5.0 | 4.57 g/cm³ |
| Alfredcasparite | Sr₂TiO(Si₂O₇) | Tetragonal | — | — |
| Alfredopetrovite | Al₂(Se⁴⁺O₃)₃·6H₂O | Hexagonal | 2.5 | — |
| Alfredstelznerite | Ca₄(H₂O)₄[B₄O₄(OH)₆]₄(H₂O)₁₅ | Orthorhombic | — | — |
| Algodonite | Cu₁₋ₓAsₓ (x ~0.15) | — | — | — |
| Alicewilsonite-(YCe) | — | Triclinic | — | — |
| Alicewilsonite-(YLa) | Na₂Sr₂YLa(CO₃)₆·3H₂O | Triclinic | — | — |
| Aliettite | Ca₀.₂Mg₆(Si,Al)₈O₂₀(OH)₄·4H₂O | Monoclinic | — | — |
| Allabogdanite | (Fe,Ni)₂P | Orthorhombic | — | — |
| Allactite | Mn²⁺₇(AsO₄)₂(OH)₈ | Monoclinic | 4.5 | — |
| Allanite-(Ce) | CaCe(Al₂Fe²⁺)[Si₂O₇][SiO₄]O(OH) | Monoclinic | — | — |
| Allanite-(La) | CaLa(Al₂Fe²⁺)[Si₂O₇][SiO₄]O(OH) | Monoclinic | — | — |
| Allanite-(Nd) | CaNd(Al₂Fe²⁺)[Si₂O₇][SiO₄]O(OH) | Monoclinic | — | — |
| Allanite-(Sm) | (CaSm)(AlAlFe²⁺)O[Si₂O₇][SiO₄](OH) | Monoclinic | — | — |
| Allanite-(Y) | {CaY}{Al₂Fe²⁺}(Si₂O₇)(SiO₄)O(OH) | Monoclinic | — | — |
| Allanpringite | Fe³⁺₃(PO₄)₂(OH)₃·5H₂O | Monoclinic | 3.0 | — |
| Allantoin | — | Monoclinic | — | — |
| Allargentum | Ag₁₋ₓSbₓ (x=0.09-0.16) | Hexagonal | 3.5 | 10.00 g/cm³ |
| Alleghanyite | Mn²⁺₅(SiO₄)₂(OH)₂ | Monoclinic | — | — |
| Allendeite | Sc₄Zr₃O₁₂ | Trigonal | — | — |
| Allochalcoselite | Cu¹⁺Cu²⁺₅PbO₂(SeO₃)₂Cl₅ | Monoclinic | — | — |
| Alloclasite | CoAsS | Monoclinic | — | 6.26 g/cm³ |
| Allophane | Al₂O₃(SiO₂)₁.₃-₂.₀·2.5-3.0H₂O | — | 3.0 | — |
| Alloriite | (Na,K,Ca)₂₄(Na,Ca)₄Ca₄(Si,Al)₄₈O₉₆(SO₄)₄(SO₃,CO₃)₂(OH,Cl)₂(H₂O,OH)₄ | Trigonal | — | — |
| Alluaivite | Na₁₉(Ca,Mn²⁺)₆(Ti,Nb)₃Si₂₆O₇₄Cl·2H₂O | Trigonal | — | — |
| Alluaudite | (Na,Ca)(Mn,Mg,Fe²⁺)(Fe³⁺,Mn²⁺)₂(PO₄)₃ | Monoclinic | — | — |
| Almagreraite | CuZnMn⁴⁺₃O₈ | Orthorhombic | — | — |
| Almandine | Fe²⁺₃Al₂(SiO₄)₃ | Cubic | 7.5 | 4.30 g/cm³ |
| Almarudite | K(☐,Na)₂(Mn,Fe,Mg)₂[(Be,Al)₃Si₁₂]O₃₀ | Hexagonal | 6.0 | 2.72 g/cm³ |
| Almeidaite | PbZn₂(Mn,Y)(Ti,Fe³⁺)₁₈O₃₆(OH,O)₂ | Trigonal | — | — |
| Alnaperbøeite-(Ce) | (CaCe₂.₅Na₀.₅)(Al₄)(Si₂O₇)(SiO₄)₃O(OH)₂ | Monoclinic | — | — |
| Alpeite | Ca₄Mn³⁺₂Al₂(Mn³⁺Mg)(SiO₄)₂(Si₃O₁₀)(V₅+O₄)(OH)₆ | Orthorhombic | — | — |
| Alpersite | Mg(SO₄)·7H₂O | Monoclinic | 2.5 | — |
| Alsakharovite-Zn | NaSrKZn(Ti,Nb)₄(Si₄O₁₂)₂(O,OH)₄·7H₂O | Monoclinic | — | — |
| Alstonite | BaCa(CO₃)₂ | Triclinic | — | — |
| Altaite | PbTe | Cubic | — | 7.94 g/cm³ |
| Alterite | Zn₂Fe³⁺₄(SO₄)₄(C₂O₄)₂(OH)₄ * 17H₂O | Monoclinic | — | — |
| Althausite | Mg₄(PO₄)₂(OH,O)(F,☐) | Orthorhombic | — | — |
| Althupite | AlTh(UO₂)₇(PO₄)₄O₂(OH)₅·15H₂O | Triclinic | — | — |
| Altisite | Na₃K₆Ti₂Al₂Si₈O₂₆Cl₃ | Monoclinic | — | — |
| Alum-(K) | KAl(SO₄)₂·12H₂O | Cubic | — | — |
| Alum-(Na) | NaAl(SO₄)₂·12H₂O | Cubic | — | — |
| Aluminite | Al₂SO₄(OH)₄·7H₂O | Monoclinic | — | — |
| Aluminium (native) | Al | Cubic | — | — |
| Alumino-oxy-rossmanite | — | Trigonal | 7.0 | — |
| Aluminoceladonite | K(Mg,Fe²⁺)Al(Si₄O₁₀)(OH)₂ | Monoclinic | — | — |
| Aluminocerite-(CeCa) | (Ce₆Ca₃)☐Al(SiO₄)₃(SiO₃OH)₄(OH)₃ | Trigonal | — | — |
| Aluminocopiapite | (Al,Mg)Fe³⁺₄(SO₄)₆(OH,O)₂·20H₂O | Triclinic | — | — |
| Aluminocoquimbite | AlFe(SO₄)₃·9H₂O | Trigonal | — | — |
| Aluminomagnesiohulsite | Mg₂AlO₂(BO₃) | Monoclinic | — | — |
| Aluminopyracmonite | (NH₄)₃Al(SO₄)₃ | Trigonal | — | — |
| Aluminosugilite | — | Hexagonal | — | — |
| Aluminotaipingite-(CeCa) | (Ce₆Ca₃)◻Al(SiO₄)₃[SiO₃(OH)]₄F₃ | Trigonal | — | — |
| Alumoedtollite | K₂NaCu₅AlO₂(AsO₄)₄ | Triclinic | — | — |
| Alumohydrocalcite | CaAl₂(CO₃)₂(OH)₄·3H₂O | Triclinic | — | — |
| Alumoklyuchevskite | K₃Cu²⁺₃AlO₂(SO₄)₄ | Triclinic | 2.5 | — |
| Alumotantite | AlTaO₄ | Orthorhombic | — | 7.51 g/cm³ |
| Alumovesuvianite | Ca₁₉Al(Al₁₀Mg₂)Si₁₈O₆₉(OH)₉ | Tetragonal | — | — |
| Alumoåkermanite | (Ca,Na)₂(Al,Mg,Fe²⁺)(Si₂O₇) | Tetragonal | — | — |
| Alunite | KAl₃(SO₄)₂(OH)₆ | Trigonal | — | — |
| Alunogen | Al₂(SO₄)₃(H₂O)₁₂·5H₂O | Triclinic | — | — |
| Alvanite | ZnAl₄(V(V)O₃)₂(OH)₁₂·2H₂O | Monoclinic | — | 2.49 g/cm³ |
| Alvesite | NaKZrSi₆O₁₅·2H₂O | Orthorhombic | — | — |
| Alwilkinsite-(Y) | Y(UO₂)₃(SO₄)₂O(OH)₃(H₂O)₇·7H₂O | Orthorhombic | — | — |
| Amableite-(Ce) | Na₁₅[(Ce₁.₅Na₁.₅)Mn₃]Mn₂Zr₃◻Si[Si₂₄O₆₉(OH)₃](OH)₂·H₂O | Trigonal | — | — |
| Amakinite | Fe(OH)₂ | Trigonal | — | — |
| Amamoorite | CaMn²⁺₂Mn³⁺(Si₂O₇)O(OH) | — | — | — |
| Amarantite | Fe³⁺₂O(SO₄)₂·7H₂O | Triclinic | 2.5 | — |
| Amarillite | NaFe³⁺(SO₄)₂·6H₂O | Monoclinic | — | — |
| Amaterasuite | Sr₄Ti₆Si₄O₂₃(OH)Cl | Orthorhombic | — | — |
| Amblygonite | LiAlPO₄F | Triclinic | — | — |
| Ambrinoite | [K,(NH₄)]₂(As,Sb)₆(Sb,As)₂S₁₃·H₂O | Triclinic | — | — |
| Ameghinite | NaB₃O₃(OH)₄ | Monoclinic | — | 1.99 g/cm³ |
| Amesite | Mg₂Al(AlSiO₅)(OH)₄ | Triclinic | — | — |
| Amicite | K₂Na₂(Al₄Si₄O₁₆)·5H₂O | Monoclinic | 4.5 | — |
| Aminoffite | Ca₃(BeOH)₂Si₃O₁₀ | Tetragonal | — | 2.83 g/cm³ |
| Ammineite | CuCl₂·2NH₃ | Orthorhombic | — | — |
| Ammonioalunite | (NH)₄Al₃(SO₄)₂(OH)₆ | Trigonal | — | — |
| Ammonioborite | (NH₄)₃B₁₅O₂₀(OH)₈·4H₂O | Monoclinic | — | — |
| Ammoniojarosite | (NH)₄Fe³⁺₃(SO₄)₂(OH)₆ | Trigonal | — | — |
| Ammoniolasalite | [(NH₄)₂Mg₂(H₂O)₂₀] [V₁₀O₂₈] | Monoclinic | — | — |
| Ammonioleucite | (NH₄)AlSi₂O₆ | Tetragonal | — | — |
| Ammoniomagnesiovoltaite | (NH₄)₂Mg₅Fe³⁺₃Al(SO₄)₁₂·18H₂O | Cubic | — | — |
| Ammoniomathesiusite | (NH₄)₅(UO₂)₄(SO₄)₄(VO₅)₄·H₂O | Tetragonal | — | — |
| Ammoniotinsleyite | — | Monoclinic | — | — |
| Ammoniovoltaite | (NH₄)₂Fe²⁺₅Fe³⁺₃Al(SO₄)₁₂(H₂O)₁₈ | Cubic | — | — |
| Ammoniozippeite | (NH₄)₂[(UO₂)₂(SO₄)O₂]*H₂O | Orthorhombic | — | — |
| Amoraite | Ca₁₂Al₆(OH)₃₆(CO₃)₂(SO₃)·15H₂O | Triclinic | — | — |
| Amstallite | CaAl[(Al,Si)₄O₈(OH)₂](OH)₂·(H₂O,Cl) | Monoclinic | 4.0 | — |
| Amurselite | (NH₄)₂(UO₂)₅(SeO₃)₃O₂(OH)₂(H₂O)·8H₂O | Triclinic | — | — |
| Analcime | Na(AlSi₂O₆)·H₂O | Orthorhombic | — | — |
| Anandite | BaFe²⁺₃(Si₃Fe³⁺)O₁₀S(OH) | Monoclinic | — | — |
| Anapaite | Ca₂Fe²⁺(PO₄)₂·4H₂O | Triclinic | 3.5 | 2.81 g/cm³ |
| Anastasenkoite | — | Triclinic | — | — |
| Anatase | TiO₂ | Tetragonal | — | 3.90 g/cm³ |
| Anatolygurbanovite | SrCa₂Si₃O₉ | Triclinic | — | — |
| Anatolyite | Na₆(Ca,Na)(Mg,Fe³⁺)₃Al(AsO₄)₆ | Trigonal | — | — |
| Ancylite-(Ce) | CeSr(CO₃)₂(OH)·H₂O | Orthorhombic | — | — |
| Ancylite-(La) | LaSr(CO₃)₂(OH)·H₂O | Orthorhombic | — | — |
| Andalusite | Al₂SiO₅ | Orthorhombic | 7.5 | 3.15 g/cm³ |
| Andersonite | Na₂Ca(UO₂)(CO₃)₃·6H₂O | Trigonal | 2.5 | — |
| Andradite | Ca₃Fe³⁺₂(SiO₄)₃ | Cubic | — | — |
| Andreadiniite | CuHgAg₇Pb₇Sb₂₄S₄₈ | Monoclinic | — | — |
| Andreybulakhite | Ni(C₂O₄)·2H₂O | Monoclinic | — | — |
| Andreyivanovite | FeCrP | Orthorhombic | — | 6.65 g/cm³ |
| Andrianovite | Na₁₂(K,Sr,Ce)₃Ca₆Mn₃Zr₃Nb(Si₂₅O₇₃)(O,H₂O,OH)₅ | Trigonal | — | — |
| Andrieslombaardite | RhSbS | Cubic | — | 7.62 g/cm³ |
| Andrémeyerite | BaFe²⁺₂(Si₂O₇) | Monoclinic | 5.5 | — |
| Anduoite | RuAs₂ | Orthorhombic | — | 8.23 g/cm³ |
| Andychristyite | PbCu²⁺Te₆+O₅(H₂O) | Triclinic | — | — |
| Andymcdonaldite | Fe₂TeO₆ | Tetragonal | — | 6.39 g/cm³ |
| Andyrobertsite | KCdCu₅(AsO₄)₄[As(OH)₂O₂]·2H₂O | Monoclinic | 3.0 | 4.01 g/cm³ |
| Angarfite | NaFe³⁺₅(PO₄)₄(OH)₄·4H₂O | Orthorhombic | — | — |
| Angastonite | CaMgAl₂(PO₄)₂(OH)₄·7H₂O | Amorphous | — | — |
| Angelellite | Fe³⁺₄(AsO₄)₂O₃ | Triclinic | 5.5 | — |
| Anglesite | PbSO₄ | Orthorhombic | — | 6.34 g/cm³ |
| Anhydrite | CaSO₄ | Orthorhombic | 3.5 | 2.98 g/cm³ |
| Anilite | Cu₇S₄ | Orthorhombic | 3.0 | — |
| Ankerite | Ca(Fe²⁺,Mg)(CO₃)₂ | Trigonal | — | 3.00 g/cm³ |
| Ankinovichite | (Ni,Zn)Al₄(V₅+O₃)₂(OH)₁₂ * 2.₅H₂O | Monoclinic | — | — |
| Annabergite | Ni₃(AsO₄)₂·8H₂O | Monoclinic | — | — |
| Anningite-(Ce) | — | Tetragonal | — | — |
| Annite | — | Monoclinic | — | — |
| Annivite-(Zn) | Cu₆(Cu₄Zn₂)Bi₄S₁₂S | Cubic | — | — |
| Anorpiment | As₂S₃ | Triclinic | — | — |
| Anorthite | CaAl₂Si₂O₈ | Triclinic | — | — |
| Anorthominasragrite | (V₄+O)(SO₄) * 5H₂O | Triclinic | — | — |
| Anorthoroselite | Ca₂Co(AsO₄)₂·2H₂O | Triclinic | — | — |
| Anorthoyttrialite-(Y) | Y₄(SiO₄)(Si₃O₁₀) | Triclinic | — | — |
| Ansermetite | Mn²⁺(V₂O₆) * 4H₂O | Monoclinic | — | — |
| Antarcticite | CaCl₂·6H₂O | Trigonal | — | 1.72 g/cm³ |
| Anthoinite | AlWO₃(OH)₃ | Triclinic | — | — |
| Anthonyite | — | Monoclinic | — | — |
| Anthophyllite | ☐Mg₂Mg₅Si₈O₂₂(OH)₂ | Orthorhombic | — | — |
| Antigorite | Mg₃Si₂O₅(OH)₄ | Monoclinic | — | 2.49 g/cm³ |
| Antimonselite | Sb₂Se₃ | Orthorhombic | — | 5.51 g/cm³ |
| Antimony (native) | Sb | Trigonal | 3.3 | 6.66 g/cm³ |
| Antipinite | KNa₃Cu₂(C₂O₄)₄ | Triclinic | — | — |
| Antipovite | Cu₅O₂(PO₄)₂ | Triclinic | — | — |
| Antlerite | Cu²⁺₃SO₄(OH)₄ | — | — | — |
| Antofagastaite | Na₂Ca(SO₄)₂·1.5H₂O | — | — | — |
| Anyuiite | AuPb₂ | Tetragonal | — | 12.88 g/cm³ |
| Anzaite-(Ce) | Ce₄Fe²⁺Ti₆O₁₈(OH)₂ | Monoclinic | — | — |
| Apachite | Cu₉Si₁₀O₂₉·11H₂O | Monoclinic | — | — |
| Apexite | NaMg(PO₄)·9H₂O | Triclinic | — | — |
| Aphthitalite | K₃Na(SO₄)₂ | Trigonal | 3.0 | 2.75 g/cm³ |
| Apjohnite | Mn²⁺Al₂(SO₄)₄ * 2₂H₂O | Monoclinic | — | — |
| Aplowite | Co(SO₄)·4H₂O | Monoclinic | — | — |
| Apuanite | Fe²⁺Fe³⁺₄Sb³⁺₄O₁₂S | Tetragonal | — | — |
| Aqualite | (H₃O)₈(Na,K,Sr)₅Ca₆Zr₃Si₂₆O₆₆(OH)₉Cl | Trigonal | — | — |
| 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 |
| 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 |
| Ángelaite | Cu₂AgPbBiS₄ | Orthorhombic | — | — |
| Åkermanite | Ca₂MgSi₂O₇ | Tetragonal | — | — |
| Åsgruvanite-(Ce) | Ce₁₆Ca₅Al(SiO₄)₆(AsO₃)₈(CO₃)₂Cl₄F₃(OH)₂ | Trigonal | — | — |
| Åskagenite-(Nd) | Mn²⁺NdAl₂Fe³⁺(Si₂O₇)(SiO₄)O₂ | Monoclinic | — | — |