Material Index
| Name | Formula | Classifications | Members | Image | Lines | Spectra | Techniques | Tags |
|---|---|---|---|---|---|---|---|---|
| Thallium | Tl | — | — | 15 | 0 | — | Metal , Element | |
| Thallium bromide / iodide | Tl(Br,I) | — | — | 3 | 2 | SXES | Synthetic , Compound, Halide | |
| Thenardite | Na2SO4 | Sodium sulphate | — | 2 | 0 | — | Sulphate | |
| Theophrastite | Ni(OH)2 | Brucite (group) | — | 0 | 0 | — | Mineral, Hydroxide | |
| Thermaerogenite | CuAl2O4 | Spinel (subgroup) | — | 0 | 0 | — | Mineral | |
| Thorbastnäsite | ThCa(CO3)2F2·3H2O | Bastnäsite (group) | — | 0 | 0 | — | Hydrated , Mineral, Carbonate , Halide | |
| Thorianite | ThO2 | Thorium dioxide, Uraninite (group) | — | 4 | 4 | CL/SEM, SXES | Mineral, Simple oxide | |
| Thorite | ThSiO4, (Th,U)SiO4 | Zircon (group), Thorium silicate | — | 19 | 4 | CL, EDS | Mineral, Silicate | |
| Thorium | Th | — | — | 44 | 2 | SXES | Metal , Element | |
| Thorium dioxide | ThO2 | — | Thorianite | 0 | 0 | — | Simple oxide , Compound | |
| Thorium silicate | ThSiO4 | — | Thorite, Huttonite | 0 | 0 | — | Silicate , Compound | |
| Thulium | Tm | — | — | 12 | 0 | — | Element , Metal | |
| Thulium orthophosphate | TmPO4 | REE phosphate | — | 0 | 0 | — | Compound, Orthophosphate , Phosphate | |
| Thulium ultraphosphate | TmP5O14 | REE ultraphosphate | — | 19 | 2 | CL/SEM, SXES | Synthetic , Compound, Phosphate , Ultraphosphate | |
| Thénardite | Na2(SO4) | Sodium sulphate | — | 0 | 0 | — | Mineral, Sulphate |
