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Approved minerals
4,194 minerals
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Stolperite | AlCu | Cubic | — | 5.51 g/cm³ |
| Stoppaniite | Be₃Fe³⁺₂(Si₆O₁₈) * H₂O | Hexagonal | — | — |
| Stracherite | BaCa₆(SiO₄)₂[(PO₄)(CO₃)]₂F | Trigonal | — | — |
| Straczekite | (Ca,K,Ba)V₈O₂₀·3H₂O | Monoclinic | — | — |
| Strakhovite | NaBa₃Mn²⁺₂Mn³⁺₂Si₆O₁₉(OH)₃ | — | — | — |
| Strandite | Pb₃Mn³⁺₄Mn⁴⁺₃O₁₅ | Hexagonal | — | — |
| Stranskiite | Zn₂Cu(AsO₄)₂ | Triclinic | 4.0 | 4.73 g/cm³ |
| Strashimirite | Cu₄(AsO₄)₂(OH)₂·2.5H₂O | Monoclinic | — | — |
| Strelkinite | Na₂(UO₂)₂(VO₄)₂·6H₂O | Orthorhombic | — | — |
| Stringhamite | CaCu(SiO₄) * H₂O | — | — | — |
| Stronadelphite | Sr₅(PO₄)₃F | Hexagonal | — | 3.99 g/cm³ |
| Stronalsite | Na₂SrAl₄Si₄O₁₆ | Orthorhombic | 6.5 | 2.92 g/cm³ |
| Strontioborite | SrB₈O₁₁(OH)₄ | Monoclinic | — | — |
| Strontiochevkinite | (Sr,La,Ce,Ca)₄Fe²⁺(Ti,Zr)₂Ti₂(Si₂O₇)₂O₈ | Monoclinic | — | — |
| Strontiodresserite | SrAl₂(CO₃)₂(OH)₄·H₂O | Orthorhombic | — | — |
| Strontiofluorite | SrF₂ | Cubic | — | 4.28 g/cm³ |
| Strontiohurlbutite | SrBe₂(PO₄)₂ | Monoclinic | — | 3.15 g/cm³ |
| Strontiomelane | Sr(Mn⁴⁺₆Mn³⁺₂)O₁₆ | — | — | — |
| Strontioperloffite | SrMn²⁺₂Fe³⁺₂(PO₄)₃(OH)₃ | Monoclinic | — | — |
| Strontiopharmacosiderite | Sr₀.₅Fe₄[(AsO₄)₃(OH)₄]·4H₂O | Tetragonal | — | — |
| Strontioruizite | Sr₂Mn³⁺₂Si₄O₁₁(OH)₄·2H₂O | Monoclinic | — | — |
| Strontiowhitlockite | Sr₉Mg(PO₄)₆(PO₃OH) | — | — | — |
| Struvite-(K) | KMg(PO₄)·6H₂O | — | — | — |
| Studenitsite | NaCa₂[B₉O₁₄(OH)₄] * 2H₂O | Monoclinic | — | — |
| Stumpflite | PtSb | Hexagonal | 5.0 | — |
| Stunorthropite | (NH₄)₄[Mo₂O₆(MoO₄)₂] | Triclinic | — | — |
| Sturmanite | Ca₆Fe³⁺₂(SO₄)₂.₅[B(OH)₄](OH)₁₂·25H₂O | Trigonal | 2.5 | — |
| Stöfflerite | CaAl₂Si₂O₈ | Tetragonal | — | — |
| Suanite | Mg₂[B₂O₅] | Monoclinic | — | — |
| Sudburyite | PdSb | Hexagonal | — | 9.18 g/cm³ |
| Sudovikovite | PtSe₂ | Trigonal | — | 8.42 g/cm³ |
| Suenoite | — | Orthorhombic | — | — |
| Suessite | (Fe,Ni)₃Si | Cubic | — | — |
| Sugakiite | Cu(Fe,Ni)₈S₈ | Tetragonal | — | — |
| Sugarwhiteite | Pb₂Te₅O₁₂ | Monoclinic | — | — |
| Sugilite | K(Na,☐)₂Li₃(Fe,Mn,Al,Zr)₂[Si₁₂O₃₀] | Hexagonal | — | — |
| Suhailite | (NH₄)Fe²⁺₃(Si₃Al)O₁₀(OH)₂ | Monoclinic | 2.5 | — |
| Sulfatoredmondite | — | Monoclinic | — | — |
| Sulfhydrylbystrite | Na₅K₂Ca[Al₆Si₆O₂₄](S₅)²⁻(SH)⁻ | Trigonal | — | — |
| Sulfopadmaite | PdBiS | Cubic | — | — |
| Sulphotsumoite | Bi₃Te₂S | — | — | — |
| Sundiusite | Pb₁₀(SO₄)O₈Cl₂ | Monoclinic | — | — |
| Sunshuite | FeBi₂S₄ | Monoclinic | — | — |
| Suolunite | Ca₂Si₂O₅(OH)₂(H₂O) | Orthorhombic | — | — |
| Suredaite | PbSnS₃ | Orthorhombic | — | — |
| Surinamite | Mg₃Al₃O[Si₃BeAlO₁₅] | — | — | — |
| Surite | (Pb,Ca)₃(Al,Fe²⁺,Mg)₂((Si,Al)₄O₁₀)(CO₃)₂(OH)₂ | — | — | — |
| Suseinargiuite | NaBi(MoO₄)₂ | Tetragonal | — | — |
| Suzukiite | BaVSi₂O₇ | — | — | — |
| Sveinbergeite | Ca(Fe²⁺₆Fe³⁺)Ti₂(Si₄O₁₂)₂O₂(OH)₅(H₂O)₄ | Triclinic | — | — |
| Sveite | KAl₇(NO₃)₄(OH)₁₆Cl₂ * 8H₂O | Monoclinic | — | — |
| Sverigeite | NaMnMgSnBe₂(SiO₄)₃(OH) | Orthorhombic | — | — |
| Svetlanaite | SnSe | Orthorhombic | — | 5.80 g/cm³ |
| Svornostite-(K) | K₂Mg[(UO₂)(SO₄)₂]₂·8H₂O | Orthorhombic | — | — |
| Svornostite-(NH₄) | (NH₄)₂Mg(UO₂)₂(SO₄)₄(H₂O)₈ | Orthorhombic | — | — |
| Svyatoslavite | Ca(Al₂Si₂O₈) | Orthorhombic | — | — |
| Svyazhinite | (Mg,Mn²⁺,Ca)(Al,Fe³⁺)(SO₄)₂F * 14H₂O | — | — | — |
| Swaknoite | (NH₄)₂Ca(HPO₄)₂ * H₂O | — | — | — |
| Sweetite | Zn(OH)₂ | Orthorhombic | — | 3.20 g/cm³ |
| Swinefordite | Li(Al,Li,Mg)₄((Si,Al)₄O₁₀)₂(OH,F)₄ * nH₂O | — | — | — |
| Symesite | Pb₁₀(SO₄)O₇Cl₄ * H₂O | — | — | — |
| Szenicsite | Cu₃MoO₄(OH)₄ | Orthorhombic | — | — |
| Szilagyiite | NaCa₃(UO₂)(CO₃)₃(SeO₃)F(H₂O)₆ | Trigonal | — | — |
| Szklaryite | ☐Al₆BAs³⁺₃O₁₅ | Orthorhombic | — | — |
| Szymańskiite | — | Hexagonal | — | — |
| Söhngeite | — | — | — | — |
| Sørensenite | — | — | — | — |
| Taikanite | Sr₃BaMn²⁺₂(Si₄O₁₂)O₂ | — | — | — |
| Taipingite-(CeCa) | (Ce₇Ca₂)Mg(SiO₄)₃[SiO₃(OH)]₄F₃ | Trigonal | — | — |
| Takanawaite-(Y) | YTaO₄ | Monoclinic | — | 7.52 g/cm³ |
| Takanelite | (Mn²⁺,Ca)₂ₓ(Mn⁴⁺)₁₋ₓO₂·0.7H₂O | — | — | — |
| Takedaite | — | Trigonal | — | — |
| Takovite | Ni₆Al₂(OH)₁₆[CO₃]·4H₂O | Trigonal | — | — |
| Takéuchiite | Mg₂Mn³⁺O₂(BO₃) | Orthorhombic | — | — |
| Talmessite | Ca₂Mg(AsO₄)₂·2H₂O | — | 5.0 | — |
| Talnakhite | Cu₉Fe₈S₁₆ | Cubic | — | 4.29 g/cm³ |
| Tamaite | (Ca,K,Ba,Na)₃-₄Mn₂₄(Si,Al)₄₀(O,OH)₁₁₂·nH₂O | Monoclinic | — | — |
| Tamboite | Fe³⁺₃(OH)(H₂O)₂(SO₄)(Te₄+O₃)₃(Te₄+O(OH)₂)(H₂O)₃ | Monoclinic | — | — |
| Tancaite-(Ce) | FeCe(MoO₄)₃·3H₂O | Trigonal | — | — |
| Tancoite | LiNa₂Al(PO₄)(HPO₄)(OH) | Orthorhombic | — | — |