- Home
- IMA status
- Approved
Approved minerals
4,194 minerals
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Kleemanite | ZnAl₂(PO₄)₂(OH)₂·3H₂O | Monoclinic | — | — |
| 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 | — | — |
| Kobokoboite | Al₆(PO₄)₄(OH)₆·11H₂O | Triclinic | — | — |
| Kobyashevite | Cu₅(SO₄)₂(OH)₆·4H₂O | Triclinic | — | — |
| Kochkarite | PbBi₄Te₇ | — | — | — |
| Kochsándorite | — | Orthorhombic | — | — |
| Kodamaite | Na₃(Ca₅Na)Si₁₆O₃₆(OH)₄F₂·(14-x)H₂O | Triclinic | — | — |
| 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 | — |
| 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 | — | — |
| 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 | — | — | — |
| Kononovite | NaMg(SO₄)F | Monoclinic | — | 2.80 g/cm³ |
| Konyaite | Na₂Mg(SO₄)₂ * 5H₂O | — | — | — |
| Konzettite | CaMn⁴⁺Te₆⁺O₆ | Trigonal | — | — |
| Kopernikite | K(Ti₇Cr³⁺)O₁₆ | Tetragonal | — | — |
| Kopylovite | K₂Ti(Si₃O₉) | Hexagonal | — | — |
| Koragoite | (Mn²⁺,Fe³⁺)₃(Nb,Ta,Ti)₂(Nb,Mn)₂(W,Ta)₂O₂₀ | Monoclinic | — | — |
| Koritnigite | Zn(AsO₃OH)·H₂O | — | — | — |
| Korobitsynite | (Na,☐)₄Ti₂(Si₄O₁₂)(O,OH)₂·4H₂O | — | — | — |
| Korshunovskite | Mg₂Cl(OH)₃·4H₂O | Triclinic | — | — |
| Koryakite | NaKMg₂Al₂(SO₄)₆ | Trigonal | — | — |
| Korzhinskite | Ca(B₂O₄) * H₂O | Monoclinic | — | — |
| Kosmochlor | NaCrSi₂O₆ | Monoclinic | 6.0 | 3.60 g/cm³ |
| Kosnarite | KZr₂(PO₄)₃ | Trigonal | 4.5 | 3.06 g/cm³ |
| Kostovite | AuCuTe₄ | — | — | — |
| Kostylevite | K₂Zr(Si₃O₉) * H₂O | Monoclinic | — | — |
| Kottenheimite | Ca₃Si(SO₄)₂(OH)₆·12H₂O | Hexagonal | — | — |
| Kotulskite | Pd(Te,Bi) | — | — | — |
| Kovdorskite | Mg₂PO₄(OH)·3H₂O | — | — | — |
| Kozoite-(La) | (La,Nd)(CO₃)(OH) | Orthorhombic | — | — |
| Kozoite-(Nd) | (Nd,La,Sm,Pr)(CO₃)(OH) | Orthorhombic | — | — |
| Kozyrevskite | Cu₄O(AsO₄)₂ | Orthorhombic | — | — |
| Kraisslite | Zn₃(Mn,Mg)₂₅(Fe³⁺,Al)(As³⁺O₃)₂[(Si,As₅+)O₄]₁₀(OH)₁₆ | — | — | — |
| Krasheninnikovite | KNa₂CaMg(SO₄)₃F | Hexagonal | — | — |
| Krasnoshteinite | Al₈[B₂O₄(OH)₂](OH)₁₆Cl₄*₇H₂O | — | — | — |
| Krasnovite | Ba(Al,Mg)(PO₄,CO₃)(OH)₂ * H₂O | Orthorhombic | — | — |
| Krauskopfite | BaSi₂O₅ * 3H₂O | — | — | — |
| Krautite | Mn(AsO₃OH)·H₂O | — | — | — |
| Kravtsovite | PdAg₂S | Orthorhombic | — | — |
| Kreiterite | CsLi₂Fe³⁺(Si₄O₁₀)F₂ | Monoclinic | — | — |
| Krettnichite | PbMn³⁺₂(VO₄)₂(OH)₂ | Monoclinic | — | — |
| Krieselite | Al₂(GeO₄)F₂ | Orthorhombic | — | 4.02 g/cm³ |
| Krinovite | Na₂Mg₄Cr³⁺₂(Si₆O₁₈)O₂ | — | — | — |
| Kristekite | Cu₂(H₂O)₄(UO₂)(SeO₃)₃·4H₂O | Monoclinic | — | — |
| Kristiansenite | Ca₂ScSn(Si₂O₇)(Si₂O₆OH) | Triclinic | — | — |
| Kristjánite | KNa₂H(SO₄)₂ | Monoclinic | — | — |
| Krivovichevite | Pb₃Al(OH)₆SO₄(OH) | Trigonal | 3.0 | — |
| Krotite | CaAl₂O₄ | Monoclinic | 6.5 | — |
| Kroupaite | KPb₀.₅[(UO₂)₈O₄(OH)₁₀]*₁₀H₂O | Orthorhombic | — | — |
| Kruijenite | Ca₄Al₄(SO₄)F₂(OH)₁₆*₂H₂O | Tetragonal | 3.0 | — |
| Krupičkaite | — | Monoclinic | — | — |
| Krupkaite | PbCuBi₃S₆ | Orthorhombic | 4.0 | — |
| Krut'aite | CuSe₂ | Orthorhombic | 4.0 | 6.28 g/cm³ |
| Krutovite | NiAs₂ | Cubic | 5.5 | 7.11 g/cm³ |
| Kryachkoite | (Al,Cu)₆(Fe,Cu) | Orthorhombic | — | — |
| Kryzaite | Na₄(MgCr)(PO₄)₃ | Trigonal | — | — |
| Králíkite | BaCl₂·2H₂O | Monoclinic | — | — |
| Kuannersuite-(Ce) | NaCeBa₃(PO₄)₃F₀.₅Cl₀.₅ | — | — | — |
| Kudriavite | (Cd,Pb)Bi₂S₄ | Monoclinic | — | — |
| Kudryavtsevaite | Na₃MgFe³⁺Ti₄O₁₂ | Orthorhombic | — | — |
| Kufahrite | PtPb | Hexagonal | — | 14.91 g/cm³ |
| Kukharenkoite-(Ce) | Ba₂Ce(CO₃)₃F | Monoclinic | — | 4.54 g/cm³ |
| Kukharenkoite-(La) | Ba₂(La,Ce,Th)(CO₃)₃F | Monoclinic | — | — |
| Kukisvumite | Na₆ZnTi₄(Si₈O₂₄)O₄ * 4H₂O | — | — | — |