Vertical Calcite Mill Specifications. Vertical Roller Mill,calcium carbonate Vertical Roller. Application of calcium carbonate Vertical Roller Mill: calcium carbonate Vertical mill are suitable for huge capacity producing, widely used in grinding non-flammable and non-explosive materials under 93(the Moh's hardness), such as quartz, feldspar, calcite, talcum, barite, fluorite, iron ore, copper ...