Material Index
| Name | Formula | Classifications | Members | Image | Lines | Spectra | Techniques | Tags |
|---|---|---|---|---|---|---|---|---|
| Datolite | CaB(SiO4)(OH) | Datolite (subgroup) | — | 9 | 2 | PL/Laser | Mineral, Hydroxide , Borosilicate | |
| Datolite (subgroup) | CaII2MBIII2SiIV2O8φ2, M=Fe,□; φ=O,OH | Gadinolite (group) | Homilite, Datolite | 0 | 0 | — | Subgroup | |
| Davidsmithite | (Ca,☐)2Na6Al8Si8O32 | Feldspathoid (group) | — | 0 | 0 | — | Mineral, Aluminosilicate | |
| Davisite | CaScAlSiO6 | Clinopyroxene | — | 0 | 0 | — | Mineral, Aluminosilicate | |
| Delhayelite | K7Na3Ca5Al2Si14O38F4Cl2 | — | — | 9 | 0 | — | Hydrated , Mineral, Aluminosilicate | |
| Dellagiustaite | VIIAl2O4 | Spinel (subgroup) | — | 0 | 0 | — | Mineral | |
| Deloneite | (Na0.5REE0.25Ca0.25)(Ca0.75REE0.25)Sr1.5(CaNa0.25REE0.25)(PO4)3F0.5(OH)0.5 | REE phosphate | — | 0 | 0 | — | Mineral, Hydroxide , Orthophosphate , Halide , Phosphate | |
| Deltalumite | (Al0.67☐0.33)Al2O4 | Spinel (subgroup) | — | 0 | 0 | — | Mineral | |
| Demartinite | K2SiF6 | — | — | 0 | 0 | — | Mineral, Halide | |
| Deynekoite | Ca9FeIII(PO4)7 | Cerite (supergroup) | — | 0 | 0 | — | Mineral, Orthophosphate , Phosphate | |
| Diamond | C | Carbon | — | 39 | 4 | CL, CL/SEM, SXES | Mineral | |
| Diaspore | AlO(OH) | Diaspore (group) | — | 4 | 0 | — | Mineral, Hydroxide | |
| Diaspore (group) | MIIIO(OH) | — | Goethite, Diaspore, Bracewellite, Tsumgallite, Groutite, Montroseite | 0 | 0 | — | Group , Hydroxide | |
| Dickite | Al2Si2O5(OH)4 | Kaolinite (subgroup) | — | 0 | 0 | — | Mineral, Aluminosilicate , Hydroxide | |
| Diopside | CaMgSi2O6 | Clinopyroxene | — | 12 | 1 | Reflectance | Mineral, Silicate |



