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Minerals
6,131 minerals
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| 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 | — | — |
| Chrysoberyl | BeAl₂O₄ | Orthorhombic | 8.5 | 3.71 g/cm³ |
| Chrysocolla | Cu₂₋ₓAlₓ(H₂₋ₓSi₂O₅)(OH)₄ · nH₂O | Orthorhombic | — | — |
| Chrysothallite | K₆Cu₆Tl³⁺Cl₁₇(OH)₄·H₂O | Tetragonal | — | — |
| Chrysotile | Mg₃Si₂O₅(OH)₄ | Orthorhombic | — | 2.49 g/cm³ |
| Chubarovite | KZn₂(BO₃)Cl₂ | Trigonal | — | — |
| Chudobaite | (Mg,Zn)₅(AsO₄)₂(HAsO₄)₂ * 10H₂O | Triclinic | — | — |
| Chukanovite | Fe₂(CO₃)(OH)₂ | Monoclinic | — | — |
| Chukhrovite-(Ca) | Ca₃Ca₁.₅Al₂(SO₄)F₁₃·12H₂O | Cubic | — | — |
| Chukhrovite-(Ce) | Ca₃CeAl₂(SO₄)F₁₃·12H₂O | Cubic | — | — |
| Chukhrovite-(Nd) | Ca₃NdAl₂(SO₄)F₁₃·12H₂O | Cubic | — | — |
| Chukhrovite-(Y) | Ca₃YAl₂(SO₄)F₁₃·10H₂O | Cubic | — | — |
| Chukochenite | — | Orthorhombic | 8.0 | — |
| Chukotkaite | — | Monoclinic | — | — |
| Churchite-(Y) | YPO₄·2H₂O | — | 3.0 | — |
| Chursinite | (Hg+₂)₀.₅Hg²⁺(AsO₄) | — | — | — |
| Chvaleticeite | Mn(SO₄)(H₂O)₆ | Monoclinic | — | — |
| Chvilevaite | Na(Cu,Fe,Zn)₂S₄ | — | — | — |
| Cianciulliite | Mg₂Mn²⁺Zn₂(OH)₁₀·2-4H₂O | — | — | — |
| Cinnabar | HgS | Trigonal | 2.3 | 8.10 g/cm³ |
| Ciprianiite | Ca₄(ThREE)AlSi₄B₄O₂₂(OH)₂ | — | — | — |
| Ciriottiite | Cu(Cu,Ag)₃Pb₁₉(Sb,As)₂₂(As₂)S₅₆ | Monoclinic | — | — |
| Cirrolite | Ca₃Al₂(PO₄)₃(OH)₃ | — | — | — |
| Clairite | (NH₄)₂Fe³⁺₃(SO₄)₄(OH)₃·3H₂O | Triclinic | — | — |
| Claraite | (Cu,Zn)₁₅(CO₃)₄(AsO₄)₂(SO₄)(OH)₁₄*₇H₂O | Trigonal | 2.0 | — |
| Claringbullite | Cu₄ClF(OH)₆ | Hexagonal | — | — |
| Clarkeite | (Na,Ca,Pb)(UO₂)O(OH) * ₀-₁H₂O | Trigonal | — | — |
| Claudetite | As₂O₃ | Monoclinic | — | — |
| Clausthalite | PbSe | Cubic | — | 8.05 g/cm³ |
| Clearcreekite | (Hg+₂)₁.₅(CO₃)(OH) * 2H₂O | Monoclinic | — | — |
| Clerite | MnSb₂S₄ | Orthorhombic | — | — |
| Cleusonite | (Pb,Sr)(U₄+,U₆+)(Fe²⁺,Zn)₂(Ti,Fe²⁺,Fe³⁺)₁₈(O,OH)₃₈ | Trigonal | — | — |
| Cliffordite | UTe⁴⁺₃O₉ | — | — | — |
| Clino-ferri-holmquistite | ☐Li₂(Mg₃Fe³⁺₂)Si₈O₂₂(OH)₂ | Monoclinic | — | — |
| Clino-ferro-ferri-holmquistite | ☐Li₂(Fe²⁺₃Fe³⁺₂)Si₈O₂₂(OH)₂ | Monoclinic | — | — |
| Clino-oscarkempffite | Ag₁₅Pb₆Sb₂₁Bi₁₈S₇₂ | Monoclinic | — | — |
| Clino-suenoite | ☐Mn₂²⁺Mg₅Si₈O₂₂(OH)₂ | Monoclinic | — | — |
| Clinoatacamite | Cu₂(OH)₃Cl | Monoclinic | 3.0 | — |
| Clinobehoite | Be(OH)₂ | Monoclinic | — | — |
| Clinobisvanite | Bi(VO₄) | Monoclinic | — | 7.07 g/cm³ |
| Clinocervantite | Sb³⁺Sb₅+O₄ | Monoclinic | — | — |
| Clinochlore | Mg₅Al(AlSi₃O₁₀)(OH)₈ | Monoclinic | — | — |
| Clinoclase | Cu₃AsO₄(OH)₃ | Monoclinic | — | — |
| Clinoenstatite | MgSiO₃ | Monoclinic | — | — |
| Clinofergusonite-(Ce) | CeNbO₄ | — | — | 6.05 g/cm³ |
| Clinofergusonite-(Nd) | NdNbO₄ | Monoclinic | — | 6.18 g/cm³ |
| Clinofergusonite-(Y) | YNbO₄ | Monoclinic | — | 5.47 g/cm³ |
| Clinoferrosilite | Fe²⁺SiO₃ | Monoclinic | — | — |
| Clinohedrite | CaZn(SiO₄) * H₂O | Monoclinic | — | — |
| Clinohumite | Mg₉(SiO₄)₄F₂ | Monoclinic | 6.0 | — |
| Clinojimthompsonite | (Mg,Fe)₅Si₆O₁₆(OH)₂ | Monoclinic | — | — |
| Clinokurchatovite | Ca(Mg,Fe²⁺,Mn²⁺)[B₂O₅] | Monoclinic | — | — |
| Clinometaborite | HBO₂ | Monoclinic | — | 2.10 g/cm³ |
| Clinophosinaite | Na₁₂(Ca,Sr)₄(Si₄O₁₂)(PO₄)₄ | Monoclinic | — | — |
| Clinoptilolite-Ca | Ca₃(Si₃₀Al₆)O₇₂*₂₀H₂O | Monoclinic | — | — |
| Clinoptilolite-K | K₆(Si₃₀Al₆)O₇₂*₂₀H₂O | Monoclinic | — | — |
| Clinoptilolite-Na | Na₆(Si₃₀Al₆)O₇₂*₂₀H₂O | Monoclinic | — | — |
| Clinosafflorite | CoAs₂ | Monoclinic | — | 7.55 g/cm³ |
| Clinosulphur | S | Monoclinic | — | — |
| Clinotobermorite | Ca₄Si₆O₁₇(H₂O)₂·(Ca·3H₂O) | Monoclinic | — | — |
| Clinoungemachite | (Na, K, Fe, SO₄) | Monoclinic | — | — |
| Clinozoisite | Ca₂Al₃(Si₂O₇)(SiO₄)O(OH) | Monoclinic | — | — |
| Clintonite | CaAlMg₂(SiAl₃)O₁₀(OH)₂ | Monoclinic | — | — |
| Clogauite | PbBi₄Te₄S₃ | Trigonal | — | — |
| Cloncurryite | Cu₀.₅(VO)₀.₅Al₂(PO₄)₂F₂·5H₂O | Monoclinic | — | — |
| Cloudite | BaFe³⁺₃(PO₄)(SO₄)(OH)₆ | Trigonal | — | — |
| Coalingite | Mg₁₀Fe³⁺₂(CO₃)(OH)₂₄·2H₂O | Trigonal | — | — |
| Cobaltarthurite | (Co,Mg)Fe³⁺₂(AsO₄)₂(OH)₂ * 4H₂O | — | — | — |
| Cobaltaustinite | CaCo(AsO₄)(OH) | Orthorhombic | — | — |
| Cobaltite | CoAsS | Orthorhombic | 5.5 | 6.26 g/cm³ |
| Cobaltkieserite | Co(SO₄)(H₂O) | Monoclinic | — | — |
| Cobaltkoritnigite | Co(AsO₃OH)·H₂O | Triclinic | — | — |
| Cobaltlotharmeyerite | CaCo₂(AsO₄)₂·2H₂O | — | 4.5 | 4.13 g/cm³ |