Material Index
| Name | Formula | Classifications | Members | Image | Lines | Spectra | Techniques | Tags |
|---|---|---|---|---|---|---|---|---|
| Krypton | Kr | — | — | 6 | 0 | — | Element | |
| Kumdykolite | Na(AlSi3O8) | Feldspar (group) | — | 0 | 0 | — | Mineral, Aluminosilicate | |
| Kumtyubeite | Ca5(SiO4)2F2 | Chegemite (subgroup) | — | 0 | 0 | — | Mineral, Silicate , Halide | |
| Kunzite | LiAlSi2O6 | Spodumene | — | 2 | 1 | CL/SEM | Variety, Silicate | |
| Kurchatovite | CaMgB2O5 | — | — | 3 | 0 | — | Mineral, Borate | |
| Kushiroite | CaAlAlSiO6 | Clinopyroxene | — | 0 | 0 | — | Mineral, Aluminosilicate | |
| Kutnohorite | CaMnII(CO3)2 | Dolomite (group) | — | 0 | 0 | — | Mineral, Carbonate | |
| Kyanite | Al2SiO5 | Al2SiO5 (group), Aluminium silicate, Al2SiO5 | — | 16 | 5 | CL, CL/SEM, EDS | Mineral, Aluminosilicate |
