Material Index
| Name | Formula | Classifications | Members | Image | Lines | Spectra | Techniques | Tags |
|---|---|---|---|---|---|---|---|---|
| Tachylite | — | Glass, Basalt | — | 0 | 0 | — | Rock type | |
| Tadzhikite-(Ce) | Ca4Ce2Ti☐(B4Si4O22)(OH)2 | Hellandite (group) | — | 0 | 0 | — | Mineral, Hydroxide , Borosilicate | |
| Tainiolite | KLiMg2Si4O10F2 | Mica | — | 1 | 0 | — | Mineral, Silicate | |
| Taipingite (subgroup) | — | Cerite (group) | Taipingite-(Ce) | 0 | 0 | — | Subgroup | |
| Taipingite-(Ce) | (CeIII7Ca2)Σ9Mg(SiO4)3[SiO3(OH)]4F3 | Taipingite (subgroup) | — | 0 | 0 | — | Mineral, Hydroxide , Silicate , Halide | |
| Talc | Mg3Si4O10(OH)2 | — | — | 1 | 1 | Reflectance | Mineral, Hydroxide , Silicate | |
| Tanohataite | LiMn2Si3O8(OH) | Wollastonite (group) | — | 0 | 0 | — | Mineral, Hydroxide , Silicate | |
| Tantalite-(Mn) | MnIITa2O6 | Columbite-(Mn)-Tantalite-(Mn) | — | 1 | 0 | — | Mineral | |
| Tantalum | Ta | — | — | 15 | 2 | SXES | Metal , Element | |
| Tantalum(V) oxide | Ta2O5 | — | Tantite | 0 | 1 | SXES | Simple oxide , Compound | |
| Tantite | Ta2O5 | Tantalum(V) oxide | — | 0 | 0 | — | Mineral, Simple oxide | |
| Tapiolite-(Mn) | MnIITa2O6 | — | — | 0 | 0 | — | Mineral | |
| Tausonite | SrTiO3 | Strontium titanate | — | 5 | 3 | CL/SEM, SXES | Mineral, Titanate | |
| Tavorite | LiFeIII(PO4)(OH) | Amblygonite (group) | — | 0 | 0 | — | Mineral, Hydroxide , Orthophosphate , Phosphate | |
| Technetium | Tc | — | — | 2 | 0 | — | Element |
