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Approved minerals
4,194 minerals
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Caminite | Mg₇(SO₄)₅(OH)₄·H₂O | Tetragonal | — | — |
| Campigliaite | Cu₄Mn²⁺(SO₄)₂(OH)₆·4H₂O | Monoclinic | — | — |
| Campostriniite | (Bi₂.₅Na₀.₅)(NH₄)₂Na₂(SO₄)₆·H₂O | Monoclinic | — | — |
| Canaphite | — | Monoclinic | 2.0 | — |
| Canasite | K₃Na₃Ca₅Si₁₂O₃₀(OH)₄ | — | — | — |
| Canavesite | Mg₂(HBO₃)(CO₃)·5H₂O | Monoclinic | — | — |
| Cancrisilite | Na₇(Si₇Al₅)O₂₄(CO₃)·3H₂O | Hexagonal | 5.0 | — |
| Cannonite | Bi₂(SO₄)O(OH)₂ | Monoclinic | — | — |
| Canosioite | Ba₂Fe³⁺(AsO₄)₂(OH) | Monoclinic | — | — |
| Canutite | NaMn₃[AsO₄][AsO₃(OH)]₂ | Monoclinic | — | — |
| Caoxite | CaC₂O₄·3H₂O | Triclinic | — | — |
| Capgaronnite | AgHgClS | Orthorhombic | — | — |
| Capranicaite | KCaNaAl₄B₄Si₂O₁₈ | Monoclinic | — | — |
| Carboborite | Ca₂Mg[B(OH)₄]₂(CO₃)₂·4H₂O | Monoclinic | — | — |
| Carbobystrite | Na₈(Al₆Si₆O₂₄)(CO₃)·4H₂O | Trigonal | — | — |
| Carbocalumite | — | Trigonal | — | — |
| Carbocernaite | (Ca,Na)(Sr,Ce,Ba)(CO₃)₂ | Orthorhombic | 3.0 | — |
| Carboferriphoxite | [(NH₄)K(H₂CO₃)][Fe³⁺(HPO₄)(H₂PO₄)(C₂O₄)] | Triclinic | — | — |
| Carboirite | FeAl₂(GeO₄)O(OH)₂ | — | — | — |
| Carbokentbrooksite | Na₁₁-₁₂(Na,Ce)₃Ca₆Mn₃Zr₃Nb[(Si₃O₉)₂(Si₉O₂₇)₂SiO](OH)₃(CO₃) * H₂O | Trigonal | — | — |
| Cardite | Zn₅.₅(AsO₄)₂(AsO₃OH)(OH)₃*₃H₂O | Orthorhombic | — | — |
| Carducciite | (Ag₂Sb₂)Pb₁₂(As,Sb)₁₆S₄₀ | Monoclinic | — | — |
| Caresite | Fe²⁺₄Al₂(OH)₁₂[CO₃] * 3H₂O | Trigonal | — | — |
| Carletonite | KNa₄Ca₄Si₈O₁₈(CO₃)₄(F,OH)·H₂O | — | — | — |
| Carletonmooreite | Ni₃Si | Cubic | — | — |
| Carlfrancisite | Mn²⁺₃(Mn²⁺,Mg,Fe³⁺,Al)₄₂(As³⁺O₃)₂(As⁵⁺O₄)₄[(Si,As⁵⁺)O₄]₆[(As⁵⁺,Si)O₄]₂(OH)₄₂ | Trigonal | — | — |
| Carlfriesite | CaTe⁴⁺₂Te⁶⁺O₈ | — | — | — |
| Carlgieseckeite-(Nd) | NaNdCa₃(PO₄)₃F | Trigonal | — | — |
| Carlhintzeite | Ca₂AlF₇·H₂O | Triclinic | — | — |
| Carlinite | Tl₂S | Trigonal | 1.0 | — |
| Carlosbarbosaite | (UO₂)₂Nb₂O₆(OH)₂·2H₂O | Orthorhombic | — | — |
| Carlosruizite | K₃Na₂Na₃Mg₅(IO₃)₆(SeO₄)₆·6H₂O | Trigonal | — | — |
| Carlosturanite | (Mg,Fe²⁺,Ti)₂₁(Si,Al)₁₂O₂₈(OH)₃₄·H₂O | — | — | — |
| Carlsbergite | CrN | Cubic | — | — |
| Carlsonite | (NH₄)₅Fe³⁺₃O(SO₄)₆·7H₂O | Triclinic | — | — |
| Carmeltazite | ZrAl₂Ti₄O₁₁ | Orthorhombic | — | — |
| Carmichaelite | (Ti,Cr,Fe)[O₂-x(OH)x] | Monoclinic | — | — |
| Carpathite | C₂₄H₁₂ | Monoclinic | 1.0 | — |
| Carraraite | Ca₃(SO₄)[Ge(OH)₆](CO₃) * 12H₂O | Hexagonal | — | — |
| Caryinite | (Na,Pb)(Ca,Na)CaMn²⁺₂(AsO₄)₃ | Monoclinic | — | — |
| Caryochroite | (Na,Sr)₃(Fe³⁺,Mg)₁₀Ti₂Si₁₂O₃₇(H₂O,O,OH)₁₇ | Monoclinic | — | — |
| Caryopilite | Mn²⁺₃Si₂O₅(OH)₄ | — | — | — |
| Cascandite | Ca(Sc,Fe³⁺)(HSi₃O₉) | — | — | — |
| Caseyite | — | Monoclinic | — | — |
| Cassagnaite | Ca₄Fe³⁺₄V³⁺₂(OH)₆O₂(Si₃O₁₀)(SiO₄)₂ | Orthorhombic | — | — |
| Cassedanneite | — | Monoclinic | — | — |
| Cassidyite | Ca₂Ni(PO₄)₂·2H₂O | Triclinic | — | — |
| Castellaroite | Mn²⁺₃(AsO₄)₂*₄H₂O | Monoclinic | — | — |
| Caswellsilverite | NaCrS₂ | Trigonal | — | 3.24 g/cm³ |
| Catalanoite | Na₂HPO₄·8H₂O | Orthorhombic | — | — |
| Catamarcaite | Cu₆GeWS₈ | Hexagonal | — | 4.81 g/cm³ |
| Cattiite | Mg₃(PO₄)₂ * 2₂H₂O | Triclinic | — | — |
| Cavansite | — | Orthorhombic | — | — |
| Cavoite | CaV₄+₃O₇ | Orthorhombic | — | — |
| Cayalsite-(Y) | CaY₆Al₂Si₄O₁₈F₆ | Orthorhombic | — | — |
| Celadonite | — | Monoclinic | 2.0 | 3.00 g/cm³ |
| Celestine | SrSO₄ | Orthorhombic | 3.2 | 3.98 g/cm³ |
| Celleriite | — | Trigonal | 7.0 | — |
| Centennialite | CaCu₃Cl₂(OH)₆·nH₂O (n~0.7) | Trigonal | — | — |
| Cerchiaraite-(Al) | Ba₄Al₄(Si₄O₁₂)O₂(OH)₄Cl₂[Si₂O₃(OH)₄] | Tetragonal | — | — |
| Cerchiaraite-(Fe) | Ba₄Fe³⁺₄(Si₄O₁₂)O₂(OH)₄Cl₂[Si₂O₃(OH)₄] | Tetragonal | — | — |
| Cerromojonite | CuPbBiSe₃ | Monoclinic | — | — |
| Cervandonite-(Ce) | (Ce,Nd,La)(Fe³⁺,Fe²⁺,Ti,Al)₃O₂(Si₂O₇)(As³⁺O₃)(OH) | Monoclinic | — | — |
| Cervelleite | Ag₄TeS | — | — | — |
| Cesanite | Na₃Ca₂(SO₄)₃(OH) | Hexagonal | — | — |
| Cesiodymite | CsKCu₅O(SO₄)₅ | Triclinic | — | — |
| Cesiokenopyrochlore | ☐ Nb₂(O,OH)₆Cs₁-x | Cubic | — | — |
| Cesplumtantite | (Cs,Na)₂(Pb,Sb³⁺)₃Ta₈O₂₄ | — | — | — |
| Cetineite | NaK₅Sb₁₄S₆O₁₈·6H₂O | Hexagonal | 3.5 | 4.21 g/cm³ |
| Chabazite-Ca | Ca₂[Al₄Si₈O₂₄]·13H₂O | Trigonal | — | — |
| Chabazite-K | (K₂NaCa₀.₅)[Al₄Si₈O₂₄]·11H₂O | Trigonal | — | — |
| Chabazite-Mg | (Mg₀.₇K₀.₅Ca₀.₅Na₀.₁)[Al₃Si₉O₂₄]·10H₂O | Trigonal | — | — |
| Chabazite-Na | (Na₃K)[Al₄Si₈O₂₄]·11H₂O | Trigonal | — | — |
| Chabazite-Sr | (Sr,Ca)₂[Al₄Si₈O₂₄]·11H₂O | Trigonal | — | — |
| Chadwickite | (UO₂)HAsO₃ | Tetragonal | — | — |
| Chaidamuite | ZnFe³⁺(SO₄)₂(OH)·4H₂O | — | — | — |
| Chalcothallite | Tl₂(Cu,Fe)₆SbS₄ | Tetragonal | — | — |
| Challacolloite | KPb₂Cl₅ | Monoclinic | — | — |
| Chambersite | Mn₃B₇O₁₃Cl | Orthorhombic | — | 3.36 g/cm³ |
| Chanabayaite | Cu₂Cl(N₃C₂H₂)₂(NH₃,Cl,H₂O,☐)₄ | Orthorhombic | — | — |