Nadorite | Narsarsukite | Natrolite | Natrophyllite | Nebula Stone | Nepheline | Nephrite | Neptunite | Niccolite | Niobium | Nissonite | Norbergite | Nordenskioldine | Northupite | Nuummit |
Obsidian | Ocho | Octahedrite | Okenite | Oligoclase | Olivine | Onyx | Opal | Orpiment | Orthoclase | Osumilite | Overite | Owyheeite |
Quartz | Quartzite | Quicksilver |