We all know that, use CLIRIK calcite carbonate grinding equipment can process calcite, dolomite, limestone, chalk, mica etc. more than 100 kinds of minerals. And do you know how to differentiate the similar carbonate minerals: calcite and dolomite?
Calcite and dolomite are very similar minerals. Both have the same hardness (H = 3), the same rhombohedra cleavage, and are found in identical geologic settings.
The introduction of calcite ore, calcite mineral:

This exceptionally clear calcite is known as Iceland spar. It is an excellent example of the rhombohedral cleavage of calcite (three cleavage planes, none at right angles). Also, it shows how you can see double vision when you look through 2 of 3 sides of a calcite rhomb.
Like many minerals, calcite comes in a variety of colors. Although it is tough to see in the photo, each of these pieces forms a rhombohedron. No cubes allowed!
If you find a big block of whitish mineral and want to know if it is calcite, look where it has broken. Here you can see several rhombohedra corners poking out. Look for the non-90° angles between the cleavage planes!
The dark mineral is biotite and the white mineral is calcite. The calcite is readily identified by its rhombohedral cleavages displayed near the bottom of this photograph. It is highly unusual to find biotite and calcite together.