| Andreyivanovite | FeCrP | Orthorhombic | — | 6.65 g/cm³ |
| Batisivite | BaTi₆(V,Cr)₈(Si₂O₇)O₂₂ | Triclinic | — | — |
| Bentorite | Ca₆Cr₂(SO₄)₃(OH)₁₂·26H₂O | Hexagonal | 2.0 | — |
| Berndlehmannite | Cu(CrV)S₄ | Cubic | — | — |
| Bracewellite | CrO(OH) | — | — | 4.05 g/cm³ |
| Brezinaite | Cr₃S₄ | Monoclinic | — | — |
| Carlsbergite | CrN | Cubic | — | — |
| Carmichaelite | (Ti,Cr,Fe)[O₂-x(OH)x] | Monoclinic | — | — |
| Caswellsilverite | NaCrS₂ | Trigonal | — | 3.24 g/cm³ |
| Chenmingite | FeCr₂O₄ | Orthorhombic | — | 4.77 g/cm³ |
| Chrombismite | Bi₁₆CrO₂₇ | Tetragonal | — | — |
| Chromceladonite | K(Mg,Fe²⁺)(Cr,Al)(Si₄O₁₀)(OH)₂ | Monoclinic | — | — |
| Chromferide | Fe₃Cr₁-x (x=₀.₆) | Cubic | — | — |
| Chromio-pargasite | NaCa₂(Mg₄Cr)(Si₆Al₂)O₂₂(OH)₂ | Monoclinic | — | — |
| Chromite | Fe²⁺Cr₂O₄ | Cubic | 5.5 | — |
| Chromium (native) | Cr | Cubic | — | — |
| Chromium-dravite | Na(Mg₃)Cr³⁺₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH) | Trigonal | — | — |
| Chromo-alumino-povondraite | NaCr₃(Al₄Mg₂)(Si₆O₁₈)(BO₃)₃(OH)₃O | Trigonal | 7.5 | — |
| Chromphyllite | K(Cr,Al)₂(AlSi₃O₁₀)(OH,F)₂ | — | — | — |
| Chromschieffelinite | Pb₁₀Te⁶⁺₆O₂₀(OH)₁₄(CrO₄)(H₂O)₅ | Orthorhombic | — | — |
| Chromviskontite | Pb₅Cu₂(CrO₄)₃(SeO₃)(OH)₆ | Orthorhombic | — | — |
| Cochromite | (Co,Ni,Fe)(Cr,Al)₂O₄ | Cubic | — | — |
| Crichtonite | Sr(Mn,Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH)₃₈ | — | — | — |
| Crocoite | PbCrO₄ | Monoclinic | — | 6.11 g/cm³ |
| Cronusite | Ca₀.₂CrS₂ * ₂ H₂O | — | — | — |
| Cuprokalininite | Cu(Cr³⁺Cr⁴⁺)S₄ | Cubic | — | — |
| Daubréelite | FeCr₂S₄ | Cubic | — | 3.81 g/cm³ |
| Davidite-(Ce) | Ce(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈ | — | — | — |
| Davidite-(La) | La(Y,U)Fe₂(Ti,Fe,Cr,V)₁₈(O,OH,F)₃₈ | — | — | — |
| Dessauite-(Y) | Sr(Y,U,Mn)(Ti,Fe,Cr,V)₁₈(O,OH)₃₈ | Trigonal | — | — |
| Dietzeite | Ca₂(IO₃)₂(CrO₄)·H₂O | Monoclinic | — | — |
| Dukeite | Bi³⁺₂₄Cr⁶⁺₈O₅₇(OH)₆·3H₂O | Trigonal | — | — |
| Embreyite | Pb₅(CrO₄)₂(PO₄)₂·H₂O | Monoclinic | — | — |
| Eskolaite | Cr₂O₃ | Trigonal | — | — |
| Ferchromide | Cr₃Fe₁-x | Cubic | 6.5 | — |
| Florensovite | Cu(Cr₁.₅Sb₀.₅)S₄ | Cubic | 5.0 | — |
| Fornacite | CuPb₂(CrO₄)(AsO₄)(OH) | Monoclinic | 2.5 | 6.27 g/cm³ |
| George-ericksenite | Na₆CaMg(IO₃)₆(CrO₄)₂·12H₂O | Monoclinic | — | — |
| Georgerobinsonite | Pb₄(CrO₄)₂(OH)₂FCl | Orthorhombic | — | — |
| Grimaldiite | CrO(OH) | — | — | 4.05 g/cm³ |
| Guyanaite | CrO(OH) | — | — | 4.05 g/cm³ |
| Hashemite | Ba(CrO₄) | Orthorhombic | — | 4.51 g/cm³ |
| Hemihedrite | ZnPb₁₀(CrO₄)₆(SiO₄)₂(OH)₂ | Triclinic | — | — |
| Hemleyite | (Fe²⁺₀.₄₈Mg₀.₃₇Ca₀.₀₄Na₀.₀₄Mn²⁺₀.₀₃Al₀.₀₃Cr³⁺₀.₀₁)sum=₁.₀₀Si₁.₀₀O₃ | Trigonal | — | — |
| Iquiqueite | K₃Na₄Mg(CrO₄)B₂₄O₃₉(OH)·12H₂O | Hexagonal | — | — |
| Isovite | (Cr,Fe)₂₃C₆ | Cubic | — | — |
| Joegoldsteinite | MnCr₂S₄ | Cubic | — | 3.67 g/cm³ |
| Kalininite | ZnCr₂S₄ | Cubic | — | 3.95 g/cm³ |
| Knorringite | Mg₃Cr₂(SiO₄)₃ | Cubic | — | — |
| Kopernikite | K(Ti₇Cr³⁺)O₁₆ | Tetragonal | — | — |
| Kosmochlor | NaCrSi₂O₆ | Monoclinic | 6.0 | 3.60 g/cm³ |
| Krinovite | Na₂Mg₄Cr³⁺₂(Si₆O₁₈)O₂ | — | — | — |
| Kryzaite | Na₄(MgCr)(PO₄)₃ | Trigonal | — | — |
| Loveringite | (Ca,Ce,La)(Zr,Fe)(Mg,Fe)₂(Ti,Fe,Cr,Al)₁₈O₃₈ | Hexagonal | 5.0 | 4.42 g/cm³ |
| Lópezite | K₂Cr₂O₇ | Triclinic | 2.5 | 2.77 g/cm³ |
| Macquartite | Cu₂Pb₇(CrO₄)₄(SiO₄)₂(OH)₂ | Monoclinic | — | — |
| Magnesiochromite | MgCr³⁺₂O₄ | Cubic | 5.5 | — |
| Manganochromite | Mn²⁺Cr₂O₄ | Cubic | — | — |
| Mariinskite | BeCr₂O₄ | Orthorhombic | 8.5 | 4.62 g/cm³ |
| Mathiasite | (K, Ba, Sr)(Zr, Fe)(Mg,Fe)₂ (Ti,Cr,Fe)₁₈O₃₈ | Trigonal | — | — |