Material Index
| Name | Formula | Classifications | Members | Image | Lines | Spectra | Techniques | Tags |
|---|---|---|---|---|---|---|---|---|
| K feldspar | KAlSi3O8 | Alkali feldspar | Orthoclase, Adularia, Microcline | 6 | 3 | CL, EDS | Aluminosilicate , Silicate, Group , Informal | |
| Kaliborite | KHMg2B12O16(OH)10·4H2O | Minerals containing H2O, Minerals containing OH | — | 1 | 0 | PL | Hydroxide , Mineral, Hydrated , Borate | |
| Kaolinite | Al2Si2O5(OH)4 | Kaolinite (subgroup), Minerals containing OH | — | 17 | 1 | Reflectance | Hydroxide , Mineral, Aluminosilicate | |
| Kaolinite (subgroup) | Al2Si2O5(OH)4 | Kaolinite-Serpentine Group | Nacrite, Kaolinite, Halloysite, Dickite | 9 | 0 | Reflectance | Hydroxide, Aluminosilicate , Subgroup | |
| Kapitsaite-(Y) | Ba4Y2Si8B4O28F | Hyalotekite (group) | — | 6 | 0 | PL | Mineral , REE, Borosilicate | |
| Keldyshite | Na2-xHxZrSi2O7·n(H2O) | Minerals containing H2O | — | 1 | 0 | PL/XL | Mineral, Silicate , Hydrated | |
| Khibinskite | K2ZrSi2O7 | — | — | 3 | 0 | PL | Mineral, Silicate | |
| Kratochvílite | (C6H4)2CH2 | — | — | 1 | 0 | PL | Mineral, Organic | |
| Kunzite | LiAlSi2O6 | Spodumene | — | 3 | 1 | CL/SEM | Silicate , Variety | |
| Kurchatovite | CaMgB2O5 | — | — | 3 | 0 | PL, PL/XL | Mineral, Borate | |
| Kyanite | Al2SiO5 | Aluminium silicate, Al2SiO5, Al2SiO5 (group) | — | 23 | 5 | CL, CL/SEM, EDS | Mineral, Aluminosilicate |
