The carbonate mineral calcite is a calcium carbonate corresponding to the formula CaCO3 and is one of the most widely distributed minerals on the Earth's surface.
Calcite crystals are hexagonal-rhombohedral, though actual calcite rhombohedrons are rare as natural crystals. However, they show a remarkable variety of habit including acute to obtuse rhombohedrons, tabular forms, prisms, or various scalenohedrons.
At Nexus China Clay, processed or refined calcite is available in white powder form, granule cum powder form, and in lumps form. The various grades and their applications are:
| GRADE | FORM | APPLICATIONS |
|---|---|---|
| NEXUS CARB 2 | powder | Paints, Plastic, Paper |
| NEXUS CARB 5 | powder | Paints, Plastic, Paper |
| NEXUS CARB 8 | powder | Paints, Plastic, Paper |
| NEXUS CARB 10 | powder | Paints, Plastic, Paper |
| NEXUS CARB 20 | powder | Paints, Plastic, Paper, Rubber |
| NEXUS 40 | powder | Paints, Plastic, Paper, Rubber |
| NEXUS CARB 70 | powder | Paints, Plastic, Paper, Rubber |