Calcium carbonate (CaCO₃) is one of the most widely used mineral powders in industries such as paint, plastics, paper, and construction. The quality of the final powder depends on the raw stone source 👇

🪨 Limestone – The most common source, high CaCO₃ purity (>95%), ideal for general industrial use.

💎 Calcite – Crystalline and high-purity form, perfect for fine and high-brightness calcium carbonate.

🏛️ Marble – Recrystallized form of CaCO₃, dense texture and high whiteness, used for premium fillers.

🌿 Chalk – Soft, easy to grind, suitable for producing ultra-fine calcium carbonate powder.

🐚 Shell / Coral Calcium – Natural organic CaCO₃, often used in eco-friendly or food-grade materials.

⚙️ Recommended Grinding Equipment:

LM Vertical Mill → Large capacity (10–200 t/h), ideal for GCC production

MTW European Mill → Stable fineness (80–400 mesh)

LUM Ultrafine Vertical Mill / MW Micro Powder Mill → For ultrafine CaCO₃ (400–3000 mesh)

Liming Heavy Industry provides complete grinding solutions — from raw rock to high-quality calcium carbonate powder for coatings, plastics, and beyond.