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Minerals containing aluminium
1,166 minerals
Aluminium — element
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Sillimanite | Al₂OSiO₄ | Orthorhombic | 7.0 | 3.68 g/cm³ |
| Silvialite | Ca₄Al₆Si₆O₂₄(SO₄) | — | — | — |
| Simmonsite | Na₂LiAlF₆ | Monoclinic | — | — |
| Simpsonite | Al₄Ta₃O₁₃(OH) | Trigonal | 7.5 | — |
| Sinhalite | MgAlBO₄ | Orthorhombic | — | 3.35 g/cm³ |
| Sinkankasite | Mn²⁺Al(PO₃OH)₂(OH) · 6H₂O | — | — | — |
| Siwaqaite | Ca₆Al₂(CrO₄)₃(OH)₁₂·26H₂O | Trigonal | — | — |
| Slawsonite | Sr(Al₂Si₂O₈) | Monoclinic | — | — |
| Sodalite | Na₄Si₃Al₃O₁₂Cl | Cubic | 6.0 | — |
| Sokolovaite | CsLi₂Al(Si₄O₁₀)F₂ | — | — | — |
| Sombrereteite | NaCa₃(Al₇Si₉)O₃₂ | Monoclinic | — | — |
| Sosedkoite | (K,Na)₅Al₂(Ta,Nb)₂₂O₆₀ | — | — | — |
| Souzalite | (Mg,Fe²⁺)₃(Al,Fe³⁺)₄(PO₄)₄(OH)₆ * 2H₂O | — | — | — |
| Spangolite | Cu₆AlSO₄(OH)₁₂Cl·3H₂O | Trigonal | — | — |
| Sperlingite | (H₂O)K(Mn²⁺Fe³⁺)(Al₂Ti)(PO₄)₄[O(OH)] [(H₂O)₉(OH)]·4H₂O | Monoclinic | — | — |
| Spessartine | Mn²⁺₃Al₂(SiO₄)₃ | Cubic | — | 4.19 g/cm³ |
| Spinel | MgAl₂O₄ | Cubic | 8.0 | 3.58 g/cm³ |
| Spodumene | LiAlSi₂O₆ | Monoclinic | — | — |
| Staurolite | Fe²⁺₂Al₉Si₄O₂₃(OH) | Monoclinic | — | — |
| Steigerite | Al(VO₄) * 3H₂O | — | — | — |
| Steinhardtite | Al | Cubic | — | — |
| Steklite | KAl(SO₄)₂ | Trigonal | — | — |
| Stellerite | Ca₄(Si₂₈Al₈)O₇₂·28H₂O | Orthorhombic | — | — |
| Stenonite | (Sr,Ba,Na)₂Al(CO₃)F₅ | Monoclinic | — | — |
| Stilbite-Ca | NaCa₄(Si₂₇Al₉)O₇₂·28H₂O | Monoclinic | — | — |
| Stilbite-Na | Na₉(Si₂₇Al₉)O₇₂·28H₂O | Monoclinic | — | — |
| Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆·nH₂O | — | — | — |
| Stolperite | AlCu | Cubic | — | 5.51 g/cm³ |
| Stronalsite | Na₂SrAl₄Si₄O₁₆ | Orthorhombic | 6.5 | 2.92 g/cm³ |
| Strontiodresserite | SrAl₂(CO₃)₂(OH)₄·H₂O | Orthorhombic | — | — |
| Stöfflerite | CaAl₂Si₂O₈ | Tetragonal | — | — |
| Sudoite | Mg₂Al₃(Si₃Al)O₁₀(OH)₈ | — | — | — |
| Sugilite | K(Na,☐)₂Li₃(Fe,Mn,Al,Zr)₂[Si₁₂O₃₀] | Hexagonal | — | — |
| Suhailite | (NH₄)Fe²⁺₃(Si₃Al)O₁₀(OH)₂ | Monoclinic | 2.5 | — |
| Sulfhydrylbystrite | Na₅K₂Ca[Al₆Si₆O₂₄](S₅)²⁻(SH)⁻ | Trigonal | — | — |
| Surinamite | Mg₃Al₃O[Si₃BeAlO₁₅] | — | — | — |
| Surite | (Pb,Ca)₃(Al,Fe²⁺,Mg)₂((Si,Al)₄O₁₀)(CO₃)₂(OH)₂ | — | — | — |
| Sursassite | Mn²⁺₂Al₃(SiO₄)(Si₂O₇)(OH)₃ | Monoclinic | — | — |
| Svanbergite | SrAl₃(SO₄)(PO₄)(OH)₆ | Trigonal | — | — |
| Sveite | KAl₇(NO₃)₄(OH)₁₆Cl₂ * 8H₂O | Monoclinic | — | — |
| Svyatoslavite | Ca(Al₂Si₂O₈) | Orthorhombic | — | — |
| Svyazhinite | (Mg,Mn²⁺,Ca)(Al,Fe³⁺)(SO₄)₂F * 14H₂O | — | — | — |
| Swinefordite | Li(Al,Li,Mg)₄((Si,Al)₄O₁₀)₂(OH,F)₄ * nH₂O | — | — | — |
| Szklaryite | ☐Al₆BAs³⁺₃O₁₅ | Orthorhombic | — | — |
| Tacharanite | Ca₁₂Al₂Si₁₈O₃₃(OH)₃₆ | Monoclinic | — | — |
| Takovite | Ni₆Al₂(OH)₁₆[CO₃]·4H₂O | Trigonal | — | — |
| Tamaite | (Ca,K,Ba,Na)₃-₄Mn₂₄(Si,Al)₄₀(O,OH)₁₁₂·nH₂O | Monoclinic | — | — |
| Tamarugite | NaAl(SO₄)₂·6H₂O | Monoclinic | — | — |
| Tancoite | LiNa₂Al(PO₄)(HPO₄)(OH) | Orthorhombic | — | — |
| Tapiaite | Ca₅Al₂(AsO₄)₄(OH)₄·12H₂O | Monoclinic | — | — |
| Taramite | NaCaNa(Mg₃Al₂)Al₂Si₆O₂₂(OH)₂ | Monoclinic | — | — |
| Taranakite | K₃Al₅(PO₃OH)₆(PO₄)₂·18H₂O | Trigonal | — | — |
| Tashelgite | CaMgFe²⁺Al₉O₁₆(OH) | Monoclinic | — | — |
| Tatarinovite | Ca₃Al(SO₄)[B(OH)₄](OH)₆·12H₂O | Hexagonal | — | — |
| Telyushenkoite | (Cs,Na,K)Na₆[Be₂Al₃Si₁₅O₃₉]F₂ | Trigonal | — | — |
| Terranovaite | (Na,Ca)₈(Si₆₈Al₁₂)O₁₆₀·~8H₂O | Orthorhombic | — | — |
| Tetraferriannite | KFe²⁺₃((Fe³⁺,Al)Si₃O₁₀)(OH)₂ | — | — | — |
| Thermaerogenite | CuAl₂O₄ | Cubic | 7.0 | — |
| Thermessaite | K₂AlF₃(SO₄) | Orthorhombic | — | 2.80 g/cm³ |
| Thermessaite-(NH4) | (NH₄)₂AlF₃(SO₄) | Orthorhombic | — | — |
| Thomsenolite | NaCaAlF₆·H₂O | Monoclinic | 2.0 | — |
| Thomsonite-Ca | NaCa₂(Al₅Si₅)O₂₀·6H₂O | Orthorhombic | — | — |
| Thomsonite-Sr | NaSr₂Al₅Si₅O₂₀·(6-7)H₂O | Orthorhombic | — | — |
| Threadgoldite | Al(UO₂)₂(PO₄)₂(OH)·8H₂O | — | — | — |
| Tiberiobardiite | {Cu₉Al[SiO₃(OH)]₂(OH)₁₂(H₂O)₆}(SO₄)₁.₅·10H₂O | Trigonal | — | — |
| Tikhonenkovite | SrAlF₄(OH)(H₂O)₂ | Monoclinic | — | — |
| Tinsleyite | KAl₂(PO₄)₂(OH)(H₂O)₂ | Monoclinic | — | — |
| Tinzenite | Ca₆Al₄[B₂Si₈O₃₀](OH)₂ | Triclinic | — | — |
| Tissintite | (Ca,Na,☐)AlSi₂O₆ | Monoclinic | — | — |
| Titanoholtite | (Ti₀.₇₅☐₀.₂₅)Al₆BSi₃O₁₈ | Orthorhombic | — | — |
| Tobelite | (NH₄,K)Al₂(AlSi₃O₁₀)(OH)₂ | — | — | — |
| Todorokite | (Na,Ca,K,Ba,Sr)₁-x(Mn,Mg,Al)₆O₁₂·3-4H₂O | Monoclinic | — | — |
| Topaz | Al₂SiO₄F₂ | Orthorhombic | 8.0 | 3.53 g/cm³ |
| Tosudite | Na₀.₅(Al,Mg)₆((Si,Al)₈O₁₈)(OH)₁₂·5H₂O | — | — | — |
| Tounkite | (Na,Ca,K)₈(Al₆Si₆O₂₄)(SO₄)₂Cl·0.5H₂O | Hexagonal | — | — |
| Touretite | LiAl₄Be₄(B₁₁Be)O₂₈ | Cubic | — | — |
| Triangulite | Al₃(UO₂)₄(PO₄)₄(OH)₅·5H₂O | — | — | — |
| Trikalsilite | K₂NaAl₃(SiO₄)₃ | Hexagonal | — | — |
| Trilithionite | K(Li₁.₅Al₁.₅)(AlSi₃O₁₀)(F,OH)₂ | — | — | — |
| Trinepheline | NaAlSiO₄ | Hexagonal | — | 2.58 g/cm³ |