Calcite Powder
Natural Ground Calcium Carbonate · CaCO₃
Highly micronized, closely controlled white natural calcium carbonate with 96% CaCO₃ content and 95% whiteness, mined from the Aravali valleys of Rajasthan and Gujarat.
Overview
Calcite is a natural mineral with a high content of calcium and carbonate — its chemical composition is CaCO₃. It is a pure white mineral found naturally in the Aravali valleys in the state of Rajasthan, India, and is one of the premium natural minerals of the country.
Our calcite is highly micronized, closely controlled, white natural calcium carbonate specially developed for paint and allied industries. With a unique particle size distribution from 100 Mesh to 1000 Mesh, it optimizes particle packing and reduces void spaces which are otherwise filled with expensive resins.
We select the best quality lumps from the quarries of the Aravali valleys of Rajasthan and Gujarat and crush them in our own powder manufacturing plant, supplying calcite powder across India and all over the world.
Key Features
- 96% calcium carbonate content
- 95% whiteness — pure white mineral
- 100 Mesh to 1000 Mesh particle size distribution
- Optimized particle packing, reduced resin demand
- Mohs hardness 3, specific gravity 2.71
- Non-explosive and non-inflammable
- High dispersibility in water, low oil absorption
Applications
Where this mineral goes to work.
Paints & Coatings
Extender pigment providing mechanical strength, weather durability and rheological control — coarser particles for matte finishes, sub-2-micron for high-gloss emulsions.
Plastics & PVC
Micro-reinforcement boosting impact resistance and dimensional stability; stearic-acid coated grades give uniform bonding and smooth resin flow.
Paper
Internal loading filler and external coating pigment improving sheet brightness, opacity and ink receptivity — reducing costly titanium dioxide demand.
Glass
Network modifier that lowers melting temperature and viscosity while increasing chemical durability; ultra-low Fe₂O₃ maintains transparency.
Ceramics
Primary fluxing agent for tableware, sanitaryware, wall tiles and glazes — reduces thermal expansion and improves structural rigidity.
Animal Feed
Coarse grits delivering highly bioavailable elemental calcium (~38–40% Ca) for skeletal development and eggshell structural integrity.
Agriculture
Neutralises soil acidity, optimises fertiliser (NPK) uptake and supplies structural calcium to growing plants.
Oil & Drilling
Acid-soluble bridging and weighting agent for drilling fluids — sized grades seal the filter cake and control fluid loss, then dissolve cleanly in acid so the producing formation is not permanently damaged.
Cosmetics & Oral Care
Oil absorber, opacifier and texturiser for colour cosmetics; controlled rhombohedral morphology makes a mild, enamel-safe toothpaste abrasive.
Gallery
Calcite Powder in the plant.
Specification Table
Calcite at a glance, industry by industry.
| Industry Application | Key Composition (min %) | Max Impurities (%) | Physical Properties | Primary Functional Role |
|---|---|---|---|---|
| Paints & Coatings | CaCO₃ 96% | SiO₂ ≤ 2.0%, Fe₂O₃ ≤ 0.1% | Whiteness 95 – 98% | Extender; improves opacity, gloss control and weather resistance. |
| Plastics & Polymers (PVC) | CaCO₃ 96% | SiO₂ ≤ 2.0%, Fe₂O₃ ≤ 0.1% | Whiteness ≥ 96% | Filler; enhances dimensional stability, tensile strength and impact resistance. |
| Paper Manufacturing | CaCO₃ 96% | SiO₂ ≤ 2.0%, Fe₂O₃ ≤ 0.1% | Brightness 92 – 96% (GEB) | Coating agent and filler; improves sheet brightness, opacity and printability. |
| Glass Manufacturing | CaCO₃ 96% | SiO₂ ≤ 2.0%, Fe₂O₃ ≤ 0.1% | 10 – 40 Mesh (granular) | Fluxing agent; source of CaO to improve chemical durability. |
| Agriculture | CaCO₃ 96% | SiO₂ ≤ 2.0%, Fe₂O₃ ≤ 0.1% | 10 – 60 Mesh · CCE 90 – 98% | Liming agent; neutralises soil acidity, aids NPK uptake and supplies structural calcium. |
| Oil & Drilling | CaCO₃ 96% | SiO₂ ≤ 2.0%, Fe₂O₃ ≤ 0.1% | Graded 5 – 600 microns · Acid solubility ≥ 95% | Bridging and weighting agent in drilling fluids; controls fluid loss and dissolves in acid to protect the formation. |
Grade Specifications
One mineral. A specification for every industry.
Purity thresholds, impurity limits and particle size distributions are tailored to the end use. Select a grade family to view its full technical data.
Ultra-pure and sterilised for use as a premium oil absorber, opacifier and texturiser in colour cosmetics, skin care and personal care. Refined to isolate trace geological elements down to minimal ppm, complying with the FDA, EU Cosmetic Regulation and Bureau of Indian Standards.
Core Physical & Chemical Properties
- Chemical Formula
- CaCO₃
- Molecular Weight
- 100.09 g/mol
- Appearance
- Brilliant snow-white powder
- Refractive Index
- 1.48 – 1.65
- pH (10% suspension)
- 8.5 – 9.5
Exceptionally fine and odourless
Soft-focus matte without chalkiness
Purity & Heavy Metal Limits
- CaCO₃ Content
- 96%
- Lead (Pb)
- ≤ 3 ppm
- Arsenic (As)
- ≤ 2 ppm
- Mercury (Hg)
- ≤ 1 ppm
- Cadmium (Cd)
- ≤ 1 ppm
- Iron Oxide (Fe₂O₃)
- ≤ 0.05%
- Acid-Insoluble Matter
- ≤ 0.20%
On dry basis
Screened rigorously for daily dermal safety
Kept ultra-low to prevent shade shifting
Ensures zero scratchy crystalline impurities
Physical & Functional Specifications
- Whiteness / Brightness
- 96 – 98%+
- Mean Particle Size (D50)
- 2.0 – 5.0 microns
- Oil Absorption
- 15 – 25 g / 100g
- Bulk Density
- 0.40 – 0.70 g/cm³
- Moisture Content
- < 0.5%
Clean white base for eye shadows and foundations
Silky skin feel and high spreadability
Long-lasting matte performance in face powders
Prevents caking during batch formulation
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