| Alternatively, the ceramic material can be made by mixing silicon oxide, lithium aluminate, and, if desired, lithium carbonate, and calcining the mixture. |
| These are, for example, the sulphates and alkali metal compounds containing calcium aluminate. |
| Clinker is principally composed of tricalcium silicate, dicalcium silicate, tricalcium aluminate and tetracalcium aluminoferrite. |
| Other chemicals, such as ferric sulfate or sodium aluminate, may also be used. |
| Thenard's blue, a turquoise, is characteristic of cobalt aluminate, whereas cobalt silicate gives a unique violet-blue shade. |
| It is the compound with the highest CaO content among the aluminate phases. |
