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Minerals
6,131 minerals
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| 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 | — | — |
| Kiddcreekite | Cu₆WSnS₈ | — | 4.0 | 4.88 g/cm³ |
| Kidodite | BaMg₂Fe₁₆O₂₇ | Hexagonal | — | — |
| Kidwellite | NaFe³⁺₉₊ₓ(PO₄)₆(OH)₁₁·3H₂O (x ≈ 0.33) | Monoclinic | 3.0 | 3.34 g/cm³ |
| Kieftite | CoSb₃ | Cubic | — | 7.59 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 | — | — |
| Kingsgateite | — | Tetragonal | — | — |
| Kingsmountite | Ca₄(Fe²⁺,Mn²⁺)Al₄(PO₄)₆(OH)₄ * 12H₂O | Triclinic | — | — |
| Kingstonite | (Rh,Ir,Pt)₃S₄ | Monoclinic | 6.0 | — |
| 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 |
| Kirkiite | Pb₁₀Bi₃As₃S₁₉ | — | — | — |
| Kirschsteinite | CaFe²⁺SiO₄ | Orthorhombic | — | — |
| Kiryuite | NaMnAl(PO₄)F₃ | Monoclinic | — | — |
| Kishonite | — | Cubic | — | — |
| Kitagohaite | Pt₇Cu | Cubic | — | 19.91 g/cm³ |
| Kitkaite | NiTeSe | — | 3.0 | — |
| 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 | — | — |
| Klockmannite | CuSe | Hexagonal | — | 6.04 g/cm³ |
| Klyuchevskite | K₃Cu₃(Fe³⁺,Al)(SO₄)₄O₂ | Monoclinic | — | — |
| Klöchite | (Fe²⁺Fe³⁺)☐₂KZn₃(Si₁₂O₃₀) | Hexagonal | — | — |
| Knasibfite | K₃Na₄(SiF₆)₃(BF₄) | Orthorhombic | — | — |
| 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 | — | — | — |
| Kobellite | Pb₁₁(Cu,Fe)₂(Bi,Sb)₁₅S₃₅ | Orthorhombic | — | — |
| Kobokoboite | Al₆(PO₄)₄(OH)₆·11H₂O | Triclinic | — | — |
| Kobyashevite | Cu₅(SO₄)₂(OH)₆·4H₂O | Triclinic | — | — |
| Kochite | Ca₂MnZrNa₃Ti(Si₂O₇)₂(OF)F₂ | Triclinic | — | — |
| Kochkarite | PbBi₄Te₇ | — | — | — |
| Kochsándorite | — | Orthorhombic | — | — |
| 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 |
| Kojonenite | Pd₇₋ₓSnTe₂ (0.3≤x≤0.8) | Tetragonal | — | — |
| Kokchetavite | K(AlSi₃O₈) | Hexagonal | — | 2.46 g/cm³ |
| Kokinosite | Na₂Ca₂(V₁₀O₂₈)·24H₂O | Triclinic | — | — |
| Koksharovite | CaMg₂Fe³⁺₄(VO₄)₆ | Triclinic | 4.5 | — |
| Koktaite | (NH₄)₂Ca(SO₄)₂ * H₂O | Monoclinic | — | — |
| Kolarite | PbTeCl₂ | Orthorhombic | — | — |
| Kolbeckite | ScPO₄·2H₂O | Monoclinic | — | — |
| Kolfanite | Ca₂Fe³⁺₃O₂(AsO₄)₃·2H₂O | Monoclinic | — | — |
| Kolicite | Mn²⁺₇Zn₄(AsO₄)₂(SiO₄)₂(OH)₈ | — | — | — |
| Kolitschite | Pb[Zn₀.₅,☐₀.₅]Fe₃(AsO₄)₂(OH)₆ | Monoclinic | — | — |
| Kollerite | (NH₄)₂Fe³⁺(SO₃)₂(OH)*H₂O | Orthorhombic | — | — |
| Kolovratite | NixZny(VO₄)₀.₆₇(x+y) * nH₂O | — | — | — |
| Kolskyite | (Ca,☐)Ti₂Na₂Ti₂(Si₂O₇)₂O₄(H₂O)₇ | Triclinic | — | — |
| Kolwezite | CuCo(CO₃)(OH)₂ | Triclinic | — | — |
| Kolymite | Cu₇Hg₆ | Cubic | 4.0 | 13.10 g/cm³ |
| Komarovite | (Ca,Mn)Nb₂[O₃|Si₂O₇] * 3.₅H₂O | — | — | — |
| Kombatite | Pb₁₄(VO₄)₂O₉Cl₄ | Monoclinic | — | — |
| Komkovite | BaZr[Si₃O₉] * 3H₂O | — | — | — |
| Konderite | Cu₃Pb(Rh,Pt,Ir)₈S₁₆ | — | — | — |
| Koninckite | Fe³⁺PO₄ * 3H₂O | Tetragonal | — | — |
| Kononovite | NaMg(SO₄)F | Monoclinic | — | 2.80 g/cm³ |
| Konyaite | Na₂Mg(SO₄)₂ * 5H₂O | — | — | — |
| Konzettite | CaMn⁴⁺Te₆⁺O₆ | Trigonal | — | — |
| Kopernikite | K(Ti₇Cr³⁺)O₁₆ | Tetragonal | — | — |