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Minerals containing oxygen
4,631 minerals
Oxygen — element
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Kazakhstanite | Fe³⁺₅V₄+₃V₅+₁₂O₃₉(OH)₉ * 9H₂O | — | — | — |
| Kazakovite | Na₆Mn²⁺Ti(Si₆O₁₈) | Trigonal | — | — |
| Kazanskyite | Ba☐TiNbNa₃Ti(Si₂O₇)₂O₂(OH)₂(H₂O)₂ | Triclinic | — | — |
| Keatite | SiO₂ | Tetragonal | — | 2.63 g/cm³ |
| Keckite | CaMn(Fe³⁺,Mn)₂Fe³⁺₂(PO₄)₄(OH)₃(H₂O)₇ | Monoclinic | — | — |
| Kegelite | Pb₄Al₂Si₄O₁₀(SO₄)(CO₃)₂(OH)₄ | — | — | — |
| Kegginite | Pb₃Ca₃[AsV₁₂O₄₀(VO)]*₂₀H₂O | Trigonal | — | — |
| Keiviite-(Y) | Y₂Si₂O₇ | Monoclinic | — | 4.26 g/cm³ |
| Keiviite-(Yb) | Yb₂Si₂O₇ | Monoclinic | — | 6.24 g/cm³ |
| Keldyshite | (Na,H)₂ZrSi₂O₇ | Triclinic | — | — |
| Kellyite | Mn²⁺₂Al(AlSiO₅)(OH)₄ | — | — | — |
| Kelyanite | (Hg+₂)₆Sb³⁺BrCl₂O₆ | Monoclinic | — | — |
| Kemmlitzite | SrAl₃(AsO₄)(SO₄)(OH)₆ | — | 5.5 | — |
| Kempite | Mn²⁺₂Cl(OH)₃ | — | — | — |
| Kenngottite | Mn²⁺₃Fe³⁺₄(PO₄)₄(OH)₆(H₂O)₂ | Monoclinic | — | — |
| Kenomicrolite | ◻₂Ta₂[O₄(OH)₂]◻ | Cubic | — | — |
| Kenoplumbomicrolite | (Pb,☐)₂Ta₂O₆(☐,OH,O) | Cubic | — | — |
| Kenotobermorite | Ca₄Si₆O₁₅(OH)₂(H₂O)₂·3H₂O | — | — | — |
| Kentbrooksite | (Na,REE)₁₅(Ca,REE)₆(Mn²⁺,Fe²⁺)₃Zr₃Nb[Si₂₅O₇₄]F₂ * 2H₂O | Trigonal | — | — |
| Kentrolite | Pb₂Mn³⁺₂(Si₂O₇)O₂ | Orthorhombic | — | — |
| Kenyaite | Na₂Si₂₂O₄₁(OH)₈ * 6H₂O | Monoclinic | — | — |
| Kerimasite | Ca₃Zr₂(SiFe³⁺₂)O₁₂ | Cubic | 7.0 | — |
| Kermesite | Sb₂OS₂ | Triclinic | — | 4.68 g/cm³ |
| Kernite | Na₂B₄O₆(OH)₂·3H₂O | Monoclinic | — | — |
| Kettnerite | CaBiCO₃OF | Orthorhombic | — | — |
| Keyite | Cu²⁺₃Zn₄Cd₂(AsO₄)₆ * 2H₂O | — | — | — |
| Keystoneite | Mg₀.₅NiFe³⁺(Te⁴⁺O₃)₃·4.5H₂O | — | — | — |
| Khademite | AlSO₄F·5H₂O | — | — | — |
| Khaidarkanite | Cu₄Al₃(OH)₁₄F₃·2H₂O | Monoclinic | — | — |
| Khanneshite | (Na,Ca)₃(Ba,Sr,Ce,Ca)₃(CO₃)₅ | Hexagonal | — | — |
| Khesinite | Ca₄(Mg₃Fe³⁺₉)O₄(Fe³⁺₉Si₃)O₃₆ | Triclinic | — | — |
| Khibinskite | K₂ZrSi₂O₇ | Monoclinic | — | 3.19 g/cm³ |
| Khinite | Pb²⁺Cu²⁺₃[Te₆+O₆](OH)₂ | Orthorhombic | — | — |
| Khmaralite | (Mg,Al,Fe)₁₆[(Al,Si,Be)₁₂O₃₆]O₄ | — | — | — |
| Khomyakovite | Na₁₂Sr₃Ca₆Fe₃Zr₃W[Si₂₅O₇₃](O,OH,H₂O)₃(OH,Cl)₂ | Trigonal | — | — |
| Khorixasite | (Bi₀.₆₇☐₀.₃₃)Cu(VO₄)(OH) | Monoclinic | — | — |
| Khrenovite | Na₃Fe³⁺₂(AsO₄)₃ | Monoclinic | — | — |
| Khristovite-(Ce) | {CaCe}{MgAlMn²⁺}(Si₂O₇)(SiO₄)(OH)F | Monoclinic | — | — |
| Khurayyimite | Ca₇Zn₄(Si₂O₇)₂(OH)₁₀*₄H₂O | Monoclinic | — | — |
| Khvorovite | (Pb,Ba,K)₄Ca₂[Si₈B₂(Si,B)₂O₂₈]F | Triclinic | — | — |
| Kidodite | BaMg₂Fe₁₆O₂₇ | Hexagonal | — | — |
| Kidwellite | NaFe³⁺₉₊ₓ(PO₄)₆(OH)₁₁·3H₂O (x ≈ 0.33) | Monoclinic | 3.0 | 3.34 g/cm³ |
| Kieserite | Mg(SO₄)(H₂O) | Monoclinic | 3.5 | — |
| Kihlmanite-(Ce) | Ce₂TiO₂(SiO₄)(HCO₃)₂(H₂O) | Triclinic | — | — |
| Kilchoanite | Ca₆(SiO₄)(Si₃O₁₀) | Orthorhombic | — | — |
| Killalaite | Ca₆.₄(H₀.₆Si₂O₇)₂(OH)₂ | Monoclinic | — | — |
| Kimrobinsonite | (Ta,Nb)(OH)₅-₂x(O,CO₃)x ; x near ₁.₂ | — | — | — |
| Kimuraite-(Y) | CaY₂(CO₃)₄·6H₂O | Orthorhombic | — | — |
| Kimzeyite | Ca₃(Zr,Ti)₂((Si,Al,Fe³⁺)O₄)₃ | Cubic | 7.0 | — |
| Kingite | Al₃(PO₄)₂F₂(OH) · 7H₂O | Triclinic | — | — |
| Kingsmountite | Ca₄(Fe²⁺,Mn²⁺)Al₄(PO₄)₆(OH)₄ * 12H₂O | Triclinic | — | — |
| Kinichilite | Mg₀.₅Mn²⁺Fe³⁺(Te⁴⁺O₃)₃·4.5H₂O | — | — | — |
| Kinoite | Ca₂Cu₂Si₃O₁₀·2H₂O | Monoclinic | 2.5 | — |
| Kinoshitalite | (Ba,K)(Mg,Mn²⁺,Al)₃(Al₂Si₂O₁₀)(OH)₂ | — | — | — |
| Kintoreite | PbFe₃(PO₄)(PO₃OH)(OH)₆ | Trigonal | — | — |
| Kipushite | (Cu,Zn)₅Zn(PO₄)₂(OH)₆ * H₂O | Monoclinic | — | — |
| Kircherite | [Na₅Ca₂K](Si₆Al₆O₂₄)(SO₄)₂·0.33H₂O | Trigonal | — | — |
| Kirchhoffite | CsBSi₂O₆ | Tetragonal | — | 3.46 g/cm³ |
| Kirschsteinite | CaFe²⁺SiO₄ | Orthorhombic | — | — |
| Kiryuite | NaMnAl(PO₄)F₃ | Monoclinic | — | — |
| Kittatinnyite | Ca₂Mn₂Mn(SiO₄)₂(OH)₄ * 9H₂O | — | — | — |
| Kladnoite | C₆H₄(CO)₂NH | Monoclinic | — | — |
| Klajite | MnCu₄(AsO₄)₂(AsO₃OH)₂·9H₂O | Triclinic | — | — |
| Klaprothite | Na₆(UO₂)(SO₄)₄·4H₂O | Monoclinic | — | — |
| Klebelsbergite | Sb₄O₄(SO₄)(OH)₂ | Orthorhombic | — | 4.42 g/cm³ |
| Kleberite | FeTi₈O₁₁(OH)₅ | Monoclinic | — | — |
| Kleemanite | ZnAl₂(PO₄)₂(OH)₂·3H₂O | Monoclinic | — | — |
| Kleinite | (Hg₂N)(Cl,SO₄)·nH₂O | Hexagonal | — | — |
| Klyuchevskite | K₃Cu₃(Fe³⁺,Al)(SO₄)₄O₂ | Monoclinic | — | — |
| Klöchite | (Fe²⁺Fe³⁺)☐₂KZn₃(Si₁₂O₃₀) | Hexagonal | — | — |
| Knorringite | Mg₃Cr₂(SiO₄)₃ | Cubic | — | — |
| Koashvite | Na₆(Ca,Mn)(Ti,Fe)Si₆O₁₈ * H₂O | Orthorhombic | — | — |
| Kobeite-(Y) | (REE,Fe,U)₃ Zr(Ti,Nb)₃ O₁₂ | — | — | — |
| Kobokoboite | Al₆(PO₄)₄(OH)₆·11H₂O | Triclinic | — | — |
| Kobyashevite | Cu₅(SO₄)₂(OH)₆·4H₂O | Triclinic | — | — |
| Kochite | Ca₂MnZrNa₃Ti(Si₂O₇)₂(OF)F₂ | Triclinic | — | — |
| Kodamaite | Na₃(Ca₅Na)Si₁₆O₃₆(OH)₄F₂·(14-x)H₂O | Triclinic | — | — |
| Koechlinite | Bi₂MoO₆ | Orthorhombic | — | 8.14 g/cm³ |
| Koenenite | Na₄Mg₉Al₄Cl₁₂(OH)₂₂ | Trigonal | — | — |
| Kogarkoite | Na₃SO₄F | Monoclinic | 3.5 | 2.58 g/cm³ |