Material Index
| Name | Formula | Classifications | Members | Image | Lines | Spectra | Techniques | Tags |
|---|---|---|---|---|---|---|---|---|
| Afghanite | (Na,K)22Ca10(Si24Al24)O96(SO4)6Cl6 | Calcrinite (group), Minerals containing SO4 | — | 13 | 0 | PL | Mineral, Sulphate , Halide , Aluminosilicate | |
| Alforsite | Ba5(PO4)3Cl | Apatite (group), Minerals containing PO4 | — | 1 | 0 | Unknown | Mineral, Phosphate , Orthophosphate | |
| Aluminium nitride | AlN | — | — | 20 | 0 | CL, CL/SEM | Synthetic , Compound, Nitride | |
| Amber | — | — | — | 1 | 0 | PL | Compound , Organic | |
| Ammonium bromide | NH4Br | — | — | 2 | 0 | IR | Halide , Ammonium , Compound | |
| Ammonium chloride | NH4Cl | — | — | 2 | 0 | IR | Halide , Ammonium , Compound | |
| Ammonium fluoride | NH4F | — | — | 2 | 0 | IR | Halide , Compound , Ammonium | |
| Anatase | TiO2 | Titanium dioxide | — | 2 | 0 | PL | Mineral, Simple oxide | |
| Andradite-Grossular (series) | Ca3FeIII2(SiO4)3 ‒ Ca3Al2(SiO4)3 | Garnet | Andradite, Grossular | 2 | 0 | Reflectance | Silicate , Series | |
| Barium fluoride | BaF2 | — | Frankdicksonite | 13 | 1 | CL | Halide , Compound | |
| Barium fluorobromide | BaFBr | — | — | 1 | 0 | Unknown | Halide , Synthetic , Compound | |
| Barium fluorochloride | BaFCl | — | Zhangpeishanite | 1 | 0 | Unknown | Halide , Synthetic , Compound | |
| Barium lithium fluoride | BaLiF3 | — | — | 1 | 0 | Unknown | Halide , Synthetic , Compound | |
| Barylite | BaBe2Si2O7 | — | — | 1 | 0 | PL | Mineral, Silicate | |
| Barytocalcite | BaCa(CO3)2 | Minerals containing CO3 | — | 1 | 0 | PL | Carbonate , Mineral |