Material Index
| Name | Formula | Classifications | Members | Image | Lines | Spectra | Techniques | Tags |
|---|---|---|---|---|---|---|---|---|
| Clinohedrite | CaZn(SiO4)·H2O | — | — | 0 | 0 | — | Mineral, Silicate , Hydrated | |
| Clinohumite | Mg9(SiO4)4F2 | Humite (subgroup) | — | 0 | 0 | — | Mineral, Silicate | |
| Clinokurchatovite | CaMgB2O5 | — | — | 0 | 0 | — | Mineral, Borate | |
| Clinopyroxene | — | Pyroxene | Grossmanite, Kushiroite, Omphacite, Jervisite, Burnettite, Kanoite, Petedunnite, Clinoenstatite, Davisite, Esseneite, Hedenbergite, Clinoferrosilite, Kosmochlor, Tissintite, Triphane, Diopside, synthetic, Aegirine, Diopside, Johannsenite, Augite, Namansilite, Colomeraite, Jadeite, Natalyite, Ryabchikovite, Spodumene, Aegirine-augite, Pigeonite | 0 | 0 | — | Silicate , Subgroup | |
| Clinozoisite | Ca2Al3[Si2O7][SiO4]O(OH) | Epidote (group) | — | 0 | 0 | — | Mineral, Aluminosilicate , Hydroxide | |
| Clinozoisite-Epidote (series) | Ca2(Al2(Al,FeIII))[Si2O7][SiO4]O(OH) | Epidote (group) | — | 0 | 0 | — | Aluminosilicate , Series | |
| Cobalt | Co | — | — | 13 | 2 | SXES | Metal , Element | |
| Cobalt oxyhydroxide | CoOOH | — | — | 2 | 0 | — | Hydroxide , Compound | |
| Cochromite | CoCr2O4 | Spinel (subgroup) | — | 0 | 0 | — | Mineral | |
| Coesite | SiO2 | Silica | — | 1 | 1 | CL | Mineral, Simple oxide | |
| Coffinite | U(SiO4)·nH2O | Zircon (group) | — | 0 | 0 | — | Mineral, Silicate , Hydrated | |
| Collophane | Ca5(PO4)3(OH,F,Cl) | Apatite | — | 6 | 0 | — | Variety, Orthophosphate , Phosphate | |
| Colomeraite | NaTiIIISi2O6 | Clinopyroxene | — | 0 | 0 | — | Mineral, Silicate | |
| Coloradoite | HgTe | Sphalerite (group) | — | 0 | 0 | — | Mineral, Telluride | |
| Colquiriite | CaLiAlF6 | — | — | 1 | 0 | — | Mineral, Halide |
