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Cubic crystal system
494 minerals
| Mineral | Chemical formula | Mohs hardness | Density |
|---|---|---|---|
| Cobaltpentlandite | Co₉S₈ | — | 5.70 g/cm³ |
| Cochromite | (Co,Ni,Fe)(Cr,Al)₂O₄ | — | — |
| Coldwellite | Pd₃Ag₂S | — | — |
| Coloradoite | HgTe | — | 7.65 g/cm³ |
| Colusite | Cu₁₂VAs₃S₁₆ | — | — |
| Corderoite | Hg²⁺₃S₂Cl₂ | — | — |
| Coulsonite | Fe²⁺V³⁺₂O₄ | — | — |
| Cryolithionite | Na₃Al₂(LiF₄)₃ | — | 2.87 g/cm³ |
| Cryptohalite | (NH₄)₂SiF₆ | — | 2.01 g/cm³ |
| Cubo-ice | — | — | — |
| Cubothioplumbite | — | — | — |
| Cuprite | Cu₂O | — | — |
| Cuproauride | Cu₃Au | — | 12.35 g/cm³ |
| Cuproiridsite | Cu(Ir³⁺Ir⁴⁺)S₄ | — | — |
| Cuprokalininite | Cu(Cr³⁺Cr⁴⁺)S₄ | — | — |
| Cuprorhodsite | (Cu₁+₀.₅Fe³⁺₀.₅)Rh³⁺₂S₄ | 5.0 | — |
| Cuprospinel | Cu²⁺Fe³⁺₂O₄ | — | — |
| D'ansite | Na₂₁Mg(SO₄)₁₀Cl₃ | — | — |
| D'ansite-(Fe) | Na₂₁Fe(SO₄)₁₀Cl₃ | — | — |
| D'ansite-(Mn) | Na₂₁Mn(SO₄)₁₀Cl₃ | — | — |
| Damiaoite | PtIn₂ | — | 10.70 g/cm³ |
| Danalite | Be₃Fe²⁺₄(SiO₄)₃S | — | — |
| Danbaite | CuZn₂ | — | — |
| Daubréelite | FeCr₂S₄ | — | 3.81 g/cm³ |
| Davemaoite | CaSiO₃ | — | 2.90 g/cm³ |
| Dellagiustaite | V²⁺Al₂O₄ | — | — |
| Diamond | C | 10.0 | 3.52 g/cm³ |
| Dienerite | Ni₃As | — | — |
| Djerfisherite | K₆(Fe,Cu,Ni)₂₅S₂₆Cl | — | — |
| Domeykite | Cu₃As | — | — |
| Dzhalindite | In(OH)₃ | — | — |
| Dzharkenite | FeSe₂ | 5.0 | 7.21 g/cm³ |
| Dzhuluite | Ca₃(SbSn)(Fe³⁺O₄)₃ | — | — |
| Eddavidite | Pb₂Cu₁₂O₁₅Br₂ | — | — |
| Efremovite | (NH₄)₂Mg₂(SO₄)₃ | — | — |
| Eglestonite | ([Hg⁺]₂)₃OCl₃(OH) | 2.5 | — |
| Elbrusite | Ca₃(U⁶⁺₀.₅Zr₁.₅)(Fe³⁺O₄)₃ | — | — |
| Elpasolite | K₂NaAlF₆ | 2.5 | 2.86 g/cm³ |
| Eltyubyuite | Ca₁₂Fe³⁺₁₀Si₄O₃₂Cl₆ | — | — |
| Eringaite | Ca₃Sc₂(SiO₄)₃ | — | 3.42 g/cm³ |
| Erlichmanite | OsS₂ | — | 9.42 g/cm³ |
| Ertixiite | Na₂Si₄O₉ | — | — |
| Eugenite | Ag₁₁Hg₂ | — | — |
| Eulytine | Bi₄(SiO₄)₃ | — | 6.82 g/cm³ |
| Faujasite-Ca | (Ca,Na,Mg)₂(Si,Al)₁₂O₂₄·15H₂O | — | — |
| Faujasite-Mg | (Mg,Na,K,Ca)₂(Si,Al)₁₂O₂₄·15H₂O | — | — |
| Faujasite-Na | (Na,Ca,Mg)₂(Si,Al)₁₂O₂₄·15H₂O | — | — |
| Ferchromide | Cr₃Fe₁-x | 6.5 | — |
| Ferroefremovite | — | — | — |
| Ferrorhodsite | — | — | — |
| Ferroskutterudite | (Fe,Co)As₃ | — | — |
| Ferrotychite | Na₆Fe²⁺₂(CO₃)₄(SO₄) | — | — |
| Ferrovorontsovite | (Fe₅Cu)∑₆TlAs₄S₁₂ | — | — |
| Filipstadite | — | — | — |
| Fischesserite | Ag₃AuSe₂ | — | 8.92 g/cm³ |
| Fleetite | — | — | — |
| Fletcherite | Cu(Ni,Co)₂S₄ | — | — |
| Florensovite | Cu(Cr₁.₅Sb₀.₅)S₄ | 5.0 | — |
| Fluorcalciomicrolite | (Ca,Na,☐)₂Ta₂O₆F | — | 6.16 g/cm³ |
| Fluorcalciopyrochlore | (Ca,Na)₂(Nb,Ti)₂O₆F | — | 4.34 g/cm³ |
| Fluorcalcioroméite | (Ca,Na)₂Sb⁵⁺₂O₆F | 5.5 | 5.11 g/cm³ |
| Fluorite | CaF₂ | 4.0 | 3.09 g/cm³ |
| Fluorkyuygenite | Ca₁₂Al₁₄O₃₂[(H₂O)₄F₂] | — | — |
| Fluormayenite | Ca₁₂Al₁₄O₃₂[☐₄F₂] | — | — |
| Fluornatromicrolite | (Na₁.₅Bi₀.₅)Ta₂O₆F | 5.0 | — |
| Fluornatropyrochlore | (Na,Pb,Ca,REE,U)₂Nb₂O₆F | — | 5.28 g/cm³ |
| Fluorocronite | PbF₂ | — | 7.87 g/cm³ |
| Frankdicksonite | BaF₂ | 3.0 | 4.83 g/cm³ |
| Franklinite | ZnFe³⁺₂O₄ | — | — |
| Fukuchilite | Cu₃FeS₈ | 6.0 | — |
| Gahnite | ZnAl₂O₄ | — | 4.63 g/cm³ |
| Galaxite | Mn²⁺Al₂O₄ | 7.5 | — |
| Galena | PbS | 2.8 | 7.50 g/cm³ |
| Gananite | BiF₃ | — | 8.17 g/cm³ |
| Gaotaiite | Ir₃Te₈ | — | — |
| Geffroyite | (Cu,Fe,Ag)₉(Se,S)₈ | — | — |
| Genthelvite | Be₃Zn₄(SiO₄)₃S | — | 3.60 g/cm³ |
| Germanite | Cu₁₃Fe₂Ge₂S₁₆ | 3.0 | — |
| Gersdorffite | NiAsS | 5.5 | 5.90 g/cm³ |
| Geversite | PtSb₂ | — | 10.61 g/cm³ |