| Ahlfeldite | |
| 'Albrittonite' | |
| Alloclasite | |
| Aplowite | |
| Arsenopyrite | |
| Asbolane | |
| Bieberite | |
| Bornhardtite | |
| Bouazzerite | | Bi | | (Mg,Co) | | Fe | | (AsO | | ) | | O | | (OH) | | (H | | O) | | |
|
| Burgessite | |
| Carrollite | |
| Cattierite | |
| 'Cattierite-Pyrite Series' | |
| 'Cattierite-Vaesite Series' | |
| Clinosafflorite | |
| 'Cobalt' | |
| 'Cobalt chrysotile' | |
| 'Cobalt-chalcanthite' | |
| 'Cobalt-Chrompicotite' | |
| 'Cobalt-nickel-pyrite (of Vernadsky)' | |
| Cobaltarthurite | |
| Cobaltaustinite | |
| 'Cobaltian Malanite' | |
| Cobaltite | |
| Cobaltkieserite | |
| Cobaltkoritnigite | |
| Cobaltlotharmeyerite | | Ca(Co,Fe | | ,Ni) | | [AsO | | ] | | · 2(H | | O,OH) |
|
| Cobaltneustädtelite | | Bi | | Fe | | (Co,Fe | | ) | | [(O,OH)|OH|AsO | | ] | | |
|
| 'Cobaltoan Adamite' | |
| 'Cobaltoan Austinite' | |
| 'Cobaltoan Bismuthian Tennantite' | |
| 'Cobaltoan Calcite' | |
| 'Cobaltoan Dolomite' | |
| 'Cobaltoan Epsomite' | |
| 'Cobaltoan Ferrilotharmeyerite' | | Ca(Fe | | ,Co) | | [AsO | | ] | | · 2(H | | O,OH) |
|
| 'Cobaltoan Gersdorffite' | |
| 'Cobaltoan Magnesian Annabergite' | |
| 'Cobaltoan Olivenite' | |
| 'Cobaltoan Parasymplesite' | |
| 'Cobaltoan Pyrite' | |
| 'Cobaltoan Rhodochrosite' | |
| 'Cobaltoan Smithsonite' | |
| Cobaltomenite | |
| Cobaltpentlandite | |
| Cobalttsumcorite | | Pb(Co,Fe | | ,Ni) | | [AsO | | ] | | · 2(H | | O,OH) |
|
| Cobaltzippeite | |
| Cochromite | |
| Cohenite | |
| Comblainite | |
| Costibite | |