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Approved minerals
4,194 minerals
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Kuksite | Pb₃Zn₃(PO₄)₂(TeO₆) | Trigonal | — | 6.16 g/cm³ |
| Kulanite | Ba(Fe²⁺,Mn²⁺,Mg)₂(Al,Fe³⁺)₂(PO₄)₃(OH)₃ | Monoclinic | — | — |
| Kuliginite | Fe₃Mg(OH)₆Cl₂ | Trigonal | — | — |
| Kuliokite-(Y) | Y₄Al(SiO₄)₂(OH)₂F₅ | Triclinic | — | — |
| Kulkeite | Mg₈Al(AlSi₇O₂₀)(OH)₁₀ | — | — | — |
| Kullerudite | NiSe₂ | Cubic | — | 6.57 g/cm³ |
| Kumdykolite | Na(AlSi₃O₈) | Orthorhombic | — | 2.64 g/cm³ |
| Kummerite | Mn²⁺Fe³⁺Al(PO₄)₂(OH)₂·8H₂O | Triclinic | — | — |
| Kumtyubeite | Ca₅(SiO₄)₂F₂ | Monoclinic | — | — |
| Kunatite | CuFe³⁺₂(PO₄)₂(OH)₂·4H₂O | Monoclinic | — | — |
| Kupčíkite | Cu₃.₄Fe₀.₆Bi₅S₁₀ | Monoclinic | — | — |
| Kuramite | Cu₃SnS₄ | — | 4.5 | — |
| Kuranakhite | PbMn⁴⁺Te⁶⁺O₆ | Orthorhombic | — | — |
| Kuratite | Ca₂(Fe²⁺₅Ti)O₂[Si₄Al₂O₁₈] | Triclinic | — | — |
| Kurchatovite | Ca(Mg,Mn²⁺)[B₂O₅] | Orthorhombic | — | — |
| Kurilite | Ag₈Te₃Se | Trigonal | — | — |
| Kusachiite | Cu²⁺Bi³⁺₂O₄ | Tetragonal | — | — |
| Kushiroite | CaAlAlSiO₆ | Monoclinic | — | — |
| Kutinaite | Ag₆Cu₁₄As₇ | Cubic | 4.5 | 8.39 g/cm³ |
| Kuvaevite | Ir₅Ni10S16 | Trigonal | — | — |
| Kuzelite | Ca₄Al₂(OH)₁₂[SO₄] * 6H₂O | — | — | — |
| Kuzmenkoite-Zn | K₂ZnTi₄(Si₄O₁₂)₂(OH)₄·6-8H₂O | — | — | — |
| Kuzminite | HgBr | Tetragonal | 1.5 | — |
| Kuznetsovite | (Hg+₂)Hg²⁺(AsO₄)Cl | Cubic | — | — |
| Kvanefjeldite | Na₄(Ca,Mn)(Si₃O₇)₂(OH)₂ | Orthorhombic | — | — |
| Kvačekite | NiSbSe | Cubic | — | 7.59 g/cm³ |
| Kyanite | Al₂OSiO₄ | Triclinic | 7.5 | 3.68 g/cm³ |
| Kyanoxalite | Na₇(Al₅-₆Si₆-₇O₂₄)(C₂O₄)₀.₅-₁.₀·5H₂O | Hexagonal | — | — |
| Kyawthuite | Bi³⁺Sb₅+O₄ | Monoclinic | — | — |
| Kyrgyzstanite | ZnAl₄(SO₄)(OH)₁₂*₃H₂O | Monoclinic | — | — |
| Kyzylkumite | V³⁺Ti₂O₅(OH) | Monoclinic | — | — |
| Laachite | (Ca,Mn)₂Zr₂Nb₂TiFeO₁₄ | Monoclinic | — | — |
| Labuntsovite-Fe | Na₄K₄Fe²⁺₂Ti₈O₄(Si₄O₁₂)₄(OH)₄·10-12H₂O | — | — | — |
| Labuntsovite-Mg | Na₄K₄Mg₂Ti₈O₄(Si₄O₁₂)₄(OH)₄·10-12H₂O | — | — | — |
| Labyrinthite | (Na,K,Sr)₃₅Ca₁₂Fe₃Zr₆TiSi₅₁O₁₄₄(O,OH,H₂O)₉Cl₃ | Trigonal | — | — |
| Laffittite | AgHgAsS₃ | Monoclinic | — | 5.84 g/cm³ |
| Laflammeite | Pd₃Pb₂S₂ | Monoclinic | — | — |
| Laforêtite | — | Tetragonal | — | 4.93 g/cm³ |
| Lafossaite | Tl(Cl,Br) | Cubic | — | — |
| Lagalyite | Ca₂xMn₁-xO₂*₁.₅-₂H₂O | Monoclinic | — | — |
| Lahnsteinite | Zn₄(SO₄)(OH)₆·3H₂O | Triclinic | — | — |
| Laihunite | Fe²⁺Fe³⁺₂(SiO₄)₂ | Monoclinic | 6.0 | — |
| Laitakarite | Bi₄Se₃ | Trigonal | — | — |
| Lakargiite | CaZrO₃ | Orthorhombic | — | 4.60 g/cm³ |
| Lakebogaite | NaCaFe₂H(UO₂)₂(PO₄)₄(OH)₂·8H₂O | — | — | — |
| Lalondeite | (Na,Ca)₆(Ca,Na)₃Si₁₆O₃₈(F,OH)₂*₃H₂O | — | — | — |
| Lammerite | Cu₃(AsO₄)₂ | Monoclinic | — | 5.25 g/cm³ |
| Landauite | NaMnZn₂(Ti,Fe)₆Ti₁₂O₃₈ | — | — | — |
| Langhofite | — | Triclinic | — | — |
| Langisite | (Co,Ni)As | Hexagonal | — | — |
| Lanmuchangite | Tl+Al(SO₄)₂ * 12H₂O | — | — | — |
| Lannonite | Mg₂Ca₄Al₄(SO₄)₈F₈·24H₂O | Tetragonal | — | — |
| Lanthanite-(Ce) | Ce₂(CO₃)₃(H₂O)₆·2H₂O | Orthorhombic | — | — |
| Lanthanite-(Nd) | Nd₂(CO₃)₃(H₂O)₆·2H₂O | Orthorhombic | — | — |
| Lapeyreite | Cu₃O[AsO₃(OH)]₂·H₂O | Monoclinic | — | — |
| Laphamite | As₂(Se,S)₃ | Monoclinic | 1.5 | — |
| Lapieite | CuNiSbS₃ | Orthorhombic | — | 4.96 g/cm³ |
| Laptevite-(Ce) | NaFe²⁺(REE₇Ca₅Y₃)(SiO₄)₄(Si₃B₂PO₁₈)(BO₃)F₁₁ | Trigonal | — | — |
| Larisaite | Na(H₃O)(UO₂)₃(SeO₃)O₂ * 4H₂O | — | 1.0 | — |
| Larosite | (Cu,Ag)₂₁PbBiS₁₃ | — | — | — |
| Lasalite | Na₂Mg₂V₁₀O₂₈·20H₂O | Monoclinic | 1.0 | — |
| Lasmanisite | Ag₁₂Pb₁₃Mn₁₁Sb₄₄S₉₆ | Orthorhombic | — | — |
| Lasnierite | (Ca,Sr)(Mg,Fe²⁺)₂Al(P[O,F]₄)₃ | Orthorhombic | — | — |
| Laumontite | CaAl₂Si₄O₁₂·4H₂O | Monoclinic | — | — |
| Launayite | CuPb₁₀(Sb,As)₁₂S₂₀ | Monoclinic | — | — |
| Lauraniite | — | Monoclinic | — | — |
| Laurelite | Pb₇F₁₂Cl₂ | Hexagonal | — | — |
| Laurentianite | [NbO(H₂O)]₃(Si₂O₇)₂[Na(H₂O)₂]₃ | Trigonal | — | — |
| Laurentthomasite | — | Hexagonal | 6.0 | — |
| Lautenthalite | PbCu₄(SO₄)₂(OH)₆ * 3H₂O | Monoclinic | — | — |
| Laverovite | K₂NaMn₇Zr₂(Si₄O₁₂)₂O₂(OH)₄F | Triclinic | — | — |
| Lavinskyite | K(LiCu)Cu₆(Si₄O₁₁)₂(OH)₄ | Orthorhombic | 5.0 | — |
| Lavoisierite | Mn²⁺₈[Al₁₀(Mn³⁺Mg)][Si₁₁P]O₄₄(OH)₁₂ | Orthorhombic | — | — |
| Lavrentievite | Hg²⁺₃S₂(Cl,Br)₂ | Monoclinic | — | — |
| Lawsonbauerite | (Mn²⁺,Mg)₉Zn₄(SO₄)₂(OH)₂₂ * 8H₂O | Monoclinic | — | — |
| Lazaraskeite | Cu(C₂H₃O₃)₂ | Monoclinic | — | — |
| Lazarenkoite | (Ca,Fe²⁺)Fe³⁺As³⁺₃O₇ * 3H₂O | Orthorhombic | — | — |
| Lazaridisite | Cd₃(SO₄)₃·8H₂O | Monoclinic | — | — |
| Lazerckerite | Ag₃.₇₅Pb₄.₅₀(Sb₇.₇₅Bi₄)S₂₄ | Monoclinic | — | — |
| Lazulite | MgAl₂(PO₄)₂(OH)₂ | Monoclinic | — | — |