| Crystal | Calcite crystallises in the trigonal system and appears in an almost endless pallet of crystal forms. |
| Colour | Pure calcite is colourless to whitish. |
| Specific gravity | 2.71 |
| Hardness | 3 |
| Application | Calcite has vast industrial applications in construction (cement, lime, bricks and ornamental stones), as flux and slag in the metallurgy; it provides raw materials for the chemical industry, for production of fertilizer and for many more purposes. |
| Belgium | Calcite is, however, the most frequently occuring mineral in Belgium. | | |
Postage stamps:
Minerals from Belgium | |
Minerals > Carbonates > Calcite
