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Approved minerals
4,194 minerals
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Eckermannite | NaNa₂(Mg₄Al)Si₈O₂₂(OH)₂ | Monoclinic | — | — |
| Eckhardite | (Ca,Pb)CuTeO₅(H₂O) | Monoclinic | — | — |
| Eclarite | (Cu,Fe)Pb₉Bi₁₂S₂₈ | — | — | — |
| Eddavidite | Pb₂Cu₁₂O₁₅Br₂ | Cubic | — | — |
| Edenharterite | PbTlAs₃S₆ | Orthorhombic | — | — |
| Edgarbaileyite | (Hg-Hg)₃Si₂O₇ | Monoclinic | — | — |
| Edgarite | FeNb₃S₆ | Hexagonal | — | 5.12 g/cm³ |
| Edgrewite | Ca₉(SiO₄)₄F₂ | Monoclinic | — | — |
| Edoylerite | — | Monoclinic | — | — |
| Edscottite | Fe₅C₂ | Monoclinic | — | — |
| Edtollite | K₂NaCu₅Fe³⁺O₂(AsO₄)₄ | Triclinic | — | — |
| Edwardsite | Cu₃Cd₂(SO₄)₂(OH)₆·4H₂O | Monoclinic | — | — |
| Edwindavisite | Cu(C₂O₄)(NH₃) | Orthorhombic | — | — |
| Effenbergerite | BaCuSi₄O₁₀ | Tetragonal | — | — |
| Efremovite | (NH₄)₂Mg₂(SO₄)₃ | Cubic | — | — |
| Eggletonite | (Na,K,Ca)₂(Mn,Fe)₈(Si,Al)₁₂O₂₉(OH)₇·nH₂O | — | — | — |
| Ehrigite | Bi₈Te₃ | Trigonal | — | — |
| Ehrleite | Ca₄Be₃Zn₂(PO₄)₆ * 9H₂O | Triclinic | — | — |
| Eifelite | KNa₃Mg₄Si₁₂O₃₀ | — | — | 2.67 g/cm³ |
| Eirikite | KNa₆Be₂(Si₁₅Al₃)O₃₉F₂ | Trigonal | — | — |
| Ekanite | Ca₂ThSi₈O₂₀ | Tetragonal | — | — |
| Ekaterinite | Ca₂(B₄O₇)(Cl,OH)₂ * 2H₂O | Hexagonal | — | — |
| Ekatite | (Fe³⁺,Fe²⁺,Zn)₁₂(AsO₃)₆(AsO₃,HSiO₄)₂(OH)₆ | Hexagonal | 3.0 | 4.06 g/cm³ |
| Ekebergite | ThFeNb₂O₈ | Monoclinic | — | — |
| Ekplexite | (Nb,Mo)S₂·(Mg₁₋ₓAlₓ)(OH)₂₊ₓ | Trigonal | — | — |
| Elaliite | (Fe²⁺₈Fe³⁺)(PO₄)O₈ | Orthorhombic | — | — |
| Elasmochloite | Na₃Cu₆BiO₄(SO₄)₅ | Monoclinic | — | — |
| Eldfellite | NaFe³⁺(SO₄)₂ | Monoclinic | — | — |
| Eldragónite | Cu₆BiSe₄(Se₂) | Orthorhombic | — | — |
| Eleomelanite | (K₂Pb)Cu₄O₂(SO₄)₄ | Monoclinic | — | — |
| Elgoresyite | — | Monoclinic | — | — |
| Eliopoulosite | — | Trigonal | — | — |
| Eliseevite | Na₁.₅Li{Ti₂O₂[Si₄O₁₀.₅(OH)₁.₅]}·2H₂O | Monoclinic | — | — |
| Elkinstantonite | Fe₄(PO₄)₂O | Monoclinic | — | — |
| Ellenbergerite | Mg₆(Mg,Ti,Zr,☐)₂(Al,Mg)₆Si₈O₂₈(OH)₁₀ | — | — | — |
| Ellinaite | — | Orthorhombic | — | — |
| Ellingsenite | Na₅Ca₆Si₁₈O₃₈(OH)₁₃·6H₂O | Triclinic | — | — |
| Elliottite | NaMgAl₃(PO₄)₂F₆·9H₂O | Monoclinic | — | — |
| Ellisite | Tl₃AsS₃ | Trigonal | — | 6.61 g/cm³ |
| Elramlyite-(Ce) | (□₀.₆₇Ce₀.₃₃)Th₂(PO₄)₂F₃ | Monoclinic | — | — |
| Eltyubyuite | Ca₁₂Fe³⁺₁₀Si₄O₃₂Cl₆ | Cubic | — | — |
| Elyite | CuPb₄O₂SO₄(OH)₄·H₂O | Monoclinic | 2.0 | — |
| Embreyite | Pb₅(CrO₄)₂(PO₄)₂·H₂O | Monoclinic | — | — |
| Emeleusite | Li₂Na₄Fe₂Si₁₂O₃₀ | Orthorhombic | — | — |
| Emilite | Cu₁₀.₇Pb₁₀.₇Bi₂₁.₃S₄₈ | — | — | — |
| Engelhauptite | KCu₃(V₂O₇)(OH)₂Cl | Hexagonal | — | — |
| Enneasartorite | Tl₆Pb₃₂As₇₀S₁₄₀ | Monoclinic | — | — |
| Enricofrancoite | KNaCaSi₄O₁₀ | Triclinic | — | — |
| Enstatite | Mg₂Si₂O₆ | Orthorhombic | 5.5 | 3.20 g/cm³ |
| Ephesite | LiNaAl₂(Al₂Si₂O₁₀)(OH)₂ | — | — | — |
| Epidote-(Sr) | CaSr(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH) | Monoclinic | — | — |
| Epiebnerite | (NH₄)Zn(PO₄) | Monoclinic | — | 2.67 g/cm³ |
| Epifanovite | NaCaCu₅(PO₄)₄[AsO₂(OH)₂]·7H₂O | Monoclinic | — | — |
| Epistilbite | Ca₃[Si₁₈Al₆O₄₈]·16H₂O | Monoclinic | — | — |
| Erazoite | Cu₄SnS₆ | Trigonal | — | — |
| Ercitite | Na₂Mn³⁺(PO₄)(OH)₂·2H₂O | Monoclinic | — | — |
| Erdite | NaFeS₂·2H₂O | Monoclinic | — | — |
| Ericlaxmanite | Cu₄O(AsO₄)₂ | Triclinic | — | — |
| Erikapohlite | Cu²⁺₃(Zn,Cu,Mg)₄Ca₂(AsO₄)₆·2H₂O | Monoclinic | — | 4.55 g/cm³ |
| Erikjonssonite | (Pb₃₂O₂₁)[(V,Si,Mo,As)O₄]₄Cl₉ | Monoclinic | — | — |
| Eringaite | Ca₃Sc₂(SiO₄)₃ | Cubic | — | 3.42 g/cm³ |
| Erionite-Ca | Ca₅[Si₂₆Al₁₀O₇₂]·30H₂O | Hexagonal | — | — |
| Erionite-K | K₁₀[Al₂₆Si₁₀O₇₂]·30H₂O | Hexagonal | — | — |
| Erlianite | Fe²⁺₄Fe³⁺₂Si₆O₁₅(OH)₈ | Orthorhombic | — | — |
| Erlichmanite | OsS₂ | Cubic | — | 9.42 g/cm³ |
| Ermakovite | (NH₄)(As₂O₃)₂Br | Hexagonal | — | — |
| Ermeloite | Al(PO₄)(H₂O) | Monoclinic | — | — |
| Ernienickelite | NiMn⁴⁺₃O₇(H₂O)₃ | Trigonal | — | — |
| Erniggliite | Tl₂SnAs₂S₆ | Trigonal | — | 4.86 g/cm³ |
| Ernstburkeite | Mg(CH₃SO₃)₂·12H₂O | Trigonal | — | — |
| Ernstite | (Mn²⁺,Fe³⁺)Al(PO₄)(OH,O)₂ | — | — | — |
| Ershovite | Na₄K₃(Fe,Mn,Ti)₂Si₈O₂₂(OH)₄·4H₂O | — | — | — |
| Erssonite | — | Trigonal | — | — |
| Ertixiite | Na₂Si₄O₉ | Cubic | — | — |
| Ertlite | NaAl₃Al₆(Si₄B₂O₁₈)(BO₃)₃(OH)₃O | Trigonal | — | — |
| Erzwiesite | Ag₈Pb₁₂Bi₁₆S₄₀ | Orthorhombic | — | — |
| Escheite | Ca₂NaMnTi₅[Si₁₂O₃₄]O₂(OH)₃·12H₂O | Orthorhombic | — | — |
| Esdanaite-(Ce) | — | Orthorhombic | — | — |
| Eskimoite | Ag₇Pb₁₀Bi₁₅S₃₆ | Monoclinic | 4.0 | — |
| Espadaite | Na₄Ca₃Mg₂[AsO₃(OH)]₂[AsO₂(OH)₂]₁₀·7H₂O | Orthorhombic | — | — |