Material Index
| Name | Formula | Classifications | Members | Image | Lines | Spectra | Techniques | Tags |
|---|---|---|---|---|---|---|---|---|
| Sodium amphibole | An(Na2)(Z5)(Si8-mAlmO22)(OH,F,Cl)2 | w(OH, F, Cl)-dominant amphibole | Arfvedsonite root name group, Glaucophane root name group, Riebeckite root name group | 0 | 0 | — | Silicate , Subgroup | |
| Sodium bromide | NaBr | — | — | 1 | 0 | — | Compound, Halide | |
| Sodium chloride | NaCl | — | — | 3 | 0 | — | Compound, Halide | |
| Sodium hydroxide | NaOH | — | — | 2 | 0 | — | Hydroxide , Compound | |
| Sodium iodide | NaI | — | — | 1 | 0 | — | Compound, Halide | |
| Sodium sulphate | Na2SO4 | — | Thénardite, Thenardite | 11 | 0 | — | Synthetic , Compound, Sulphate | |
| Sogdianite | KZr2Li3Si12O30 | Osumilite (group) | — | 1 | 0 | — | Mineral, Silicate | |
| Solongoite | Ca2B3O4(OH)4Cl | — | — | 3 | 0 | — | Mineral, Hydroxide , Borate | |
| Sonolite | MnII9(SiO4)4(OH)2 | Manganhumite (subgroup) | — | 0 | 0 | — | Mineral, Hydroxide , Silicate | |
| Sperrylite | PtAs2 | Pyrite (group) | — | 0 | 0 | — | Mineral, Arsenide | |
| Spessartine | MnII3Al2(SiO4)3 | Garnet | — | 0 | 1 | CL | Mineral, Aluminosilicate | |
| Sphalerite | ZnS | Sphalerite (group), Zinc sulphide | — | 9 | 3 | CL/SEM, SXES | Mineral, Sulphide | |
| Sphalerite (group) | — | — | Rudashevskyite, Metacinnabar, Coloradoite, Stilleite, Ishiharaite, Tiemannite, Hawleyite, Browneite, Sphalerite | 0 | 0 | — | Group | |
| Sphene | CaTiSiO5 | — | — | 0 | 0 | — | Silicate | |
| Spherocobaltite | CoCO3 | Calcite (group) | — | 0 | 0 | — | Mineral, Carbonate |
