Shikhar Microns: Your Trusted Partner for Premium Ground Calcium Carbonate (GCC) in India
Shikhar Microns stands among the top Ground Calcium Carbonate (GCC) manufacturers in India. Our products meet international quality benchmarks and earn global trust. Our team collaborates with you to deliver the perfect solution for your requirements. Backed by over 27 years of expertise and a commitment to innovation, we ensure that our ground calcium carbonate delivers consistent results for every application. To compare with calcite and dolomite fillers, see Calcite vs Dolomite Powder and Calcite vs Dolomite vs Limestone.
What is Calcium Carbonate? What is Ground Calcium Carbonate (GCC)?
What is calcium carbonate? Calcium carbonate is a chemical compound with the calcium carbonate formula CaCO₃. The calcium chemical name (mineral name of calcium carbonate) includes calcite and aragonite; it occurs naturally in limestone, chalk, marble, and calcite. Ground Calcium Carbonate (GCC) is produced by grinding these naturally occurring calcium carbonate rocks to achieve specific particle size distributions. GCC is widely recognized for its exceptional brightness, cost-effectiveness, and superior dispersion. Industries worldwide use calcium carbonate (as GCC) as a functional filler in paper, plastics, paints, rubber, construction, and adhesives.
Chemical Composition and Physical Characteristics
Shikhar Microns ensures both the quality and purity standards of our ground calcium carbonate production. Our product offers:
Chemical Composition:
- Calcium Carbonate (CaCO₃): 97-99%
- Magnesium Carbonate (MgCO₃): 0.5-2%
- Silica (SiO₂): <1.0%
- Iron Oxide (Fe₂O₃): <0.1%
- Aluminum Oxide (Al₂O₃): <0.3%
Physical Features:
- Brightness: 92-96% (ISO 2470)
- Whiteness: 92-96% (Hunter L scale)
- Oil Absorption: 18-28 g/100g
- Moisture Content: ≤0.3%
- pH Value: 8.0-9.0
- Specific Gravity: 2.7-2.8
- Bulk Density: 0.8-1.2 g/cm³
Calcium Carbonate Formula: CaCO₃
The calcium carbonate formula is CaCO₃ — one calcium atom (Ca), one carbon atom (C), and three oxygen atoms (O₃). The molecular weight of calcium carbonate is 100.09 g/mol. CaCO₃ is a white, insoluble solid that occurs naturally as limestone, chalk, marble, and calcite. When ground to fine particle sizes, it becomes Ground Calcium Carbonate (GCC) — the most widely used industrial mineral filler in the world.
- Chemical formula: CaCO₃
- Molecular weight: 100.09 g/mol
- Crystal system: Trigonal (calcite), Orthorhombic (aragonite)
- Mohs hardness: 3
- Solubility in water: 0.013 g/L at 25 °C (practically insoluble)
- Decomposition: CaCO₃ → CaO + CO₂ at ~840 °C
Calcium carbonate is the most abundant non-siliceous mineral on Earth. It forms roughly 4% of the Earth's crust and is a key raw material for industries ranging from paper and plastics to construction, agriculture, and environmental applications. The calcium carbonate formula CaCO₃ is the same whether the source is limestone, marble, chalk, or calcite — the difference lies in purity, crystal form, and particle size after processing.
GCC vs PCC: Ground Calcium Carbonate vs Precipitated Calcium Carbonate
Calcium carbonate is available in two main forms: GCC (Ground Calcium Carbonate) and PCC (Precipitated Calcium Carbonate). Understanding the difference helps manufacturers choose the right grade for their application.
| Property | GCC (Ground) | PCC (Precipitated) |
|---|---|---|
| Production | Mechanically ground from natural limestone/calcite | Chemically synthesised (CaO + CO₂ → CaCO₃) |
| Particle shape | Irregular, rhombohedral | Uniform — cubic, scalenohedral, or acicular |
| Particle size | 0.5–75 µm (200–1500 mesh) | 0.02–3 µm (ultra-fine) |
| Purity (CaCO₃) | 97–99% | 99.5%+ |
| Cost | Lower — less energy-intensive | Higher — chemical process |
| Best for | Paper filler, paints, plastics, rubber, construction | Premium paper coating, pharmaceuticals, fine plastics |
For most industrial filler applications — paints, plastics, paper, rubber, and construction — GCC provides the best balance of performance and cost. Shikhar Microns manufactures high-purity GCC (97–99% CaCO₃) in 100–1500 mesh at our facilities in Alwar, Rajasthan.
Key Features of Our Ground Calcium Carbonate (GCC)
Our Ground Calcium Carbonate (GCC) meets all industry demands and requirements because of its specific technical aspects:
- Exceptional Brightness: 92-96% brightness provides excellent opacity and coverage
- Cost-Effective Solution: Provides excellent value for money compared to other fillers
- Low Oil Absorption: 18-28 g/100g reduces binder requirements and costs
- Excellent Dispersibility: Uniform particle distribution for consistent results
- Chemical Stability: Resistant to acids, alkalis, and temperature variations
- Free-Flowing Nature: Easy handling and processing in manufacturing
- Controlled Particle Size: Available in 100-1500 mesh for various applications
Calcium Carbonate Uses: GCC in Various Industries
Calcium carbonate uses span almost every manufacturing sector. Our ground calcium carbonate serves as a versatile filler and functional additive across multiple industries:
Paper Manufacturing
In paper production, ground calcium carbonate serves as a filler and coating pigment, improving brightness, opacity, and printability while reducing production costs and environmental impact. It's the most widely used filler in the paper industry.
Plastic and Polymer Industry
As a functional filler in plastics, ground calcium carbonate improves mechanical properties, reduces material costs, and enhances dimensional stability. It's widely used in PVC pipes, profiles, films, and injection-molded products.
Paint and Coating Industry
In paints and coatings, ground calcium carbonate acts as an extender pigment that improves opacity, reduces costs, and enhances durability. It provides excellent coverage, weather resistance, and helps control viscosity for better application properties.
Rubber Industry
Rubber manufacturers use ground calcium carbonate to improve processing characteristics, enhance mechanical properties, and reduce costs in tire manufacturing, footwear, and industrial rubber products.
Adhesives and Sealants
In adhesives and sealants, ground calcium carbonate improves rheological properties, enhances bonding strength, and provides cost-effective filler solutions for various applications.
How We Make the Best Ground Calcium Carbonate (GCC) in India
At Shikhar Microns, our manufacturing process ensures the highest quality ground calcium carbonate that meets international standards:
1. Raw Material Selection
We source premium-grade calcium carbonate rocks from certified mines, ensuring high calcium carbonate content and minimal impurities. Our strict quality control begins at the source.
2. Crushing and Grinding
Our state-of-the-art crushing and grinding equipment processes the raw material through multiple stages, achieving precise particle size distribution and optimal surface characteristics.
3. Classification and Screening
Advanced air classification and screening systems ensure consistent particle size distribution, meeting specific mesh requirements for different applications.
4. Quality Control and Testing
Every batch undergoes rigorous testing for purity, brightness, particle size, moisture content, and other critical parameters to ensure consistent quality.
5. Packaging and Storage
Our ground calcium carbonate is carefully packaged in moisture-resistant materials and stored in controlled conditions to maintain quality until delivery.
Why Choose Shikhar Microns for Ground Calcium Carbonate (GCC)?
With over 27 years of experience in mineral processing, Shikhar Microns has established itself as a trusted ground calcium carbonate manufacturer in India. Here's why industry leaders choose us:
1. Unmatched Quality and Consistency
Our advanced manufacturing processes and strict quality control ensure that every batch of ground calcium carbonate meets the highest purity and performance standards.
2. Customized Solutions
We understand that different applications require specific properties. Our team works closely with clients to provide customized ground calcium carbonate solutions that meet exact requirements.
3. Competitive Pricing
Our efficient manufacturing processes and direct sourcing enable us to offer competitive prices without compromising on quality.
4. Reliable Supply Chain
With our own manufacturing facilities and strategic partnerships, we ensure consistent supply and timely delivery to meet your production schedules.
5. Technical Support
Our experienced technical team provides comprehensive support, from product selection to application guidance, ensuring optimal results for your specific needs.
6. Environmental Responsibility
We are committed to sustainable manufacturing practices, minimizing environmental impact while maintaining the highest quality standards.
Properties
- High brightness and purity
- Low oil absorption
- Excellent dispersion
- Stable chemical composition
- Fine particle size distribution
Technical Specifications
| CaCO3 Content | ≥ 99.0% |
| Whiteness | ≥ 96% |
| Mesh Sizes Available | 200, 300, 400, 500, 600, 800, 1000, 1250, 1500 |
| Moisture Content | ≤ 0.1% |
| Oil Absorption | ≤ 22 g/100g |
| pH Value | 8.0 - 9.0 |
Applications and Uses of Ground Calcium Carbonate (GCC)
Our ground calcium carbonate serves as a versatile functional filler across multiple industries, providing cost-effective solutions while enhancing product performance.
1. Paper Industry
GCC is extensively used in paper manufacturing as a filler and coating pigment. It improves paper brightness, opacity, and printability while reducing production costs.
- Filler in paper pulp (up to 30% loading)
- Coating pigment for high-quality papers
- Improves paper smoothness and print quality
- Reduces fiber usage and production costs
2. Plastics Industry
In plastic manufacturing, GCC acts as a functional filler that improves mechanical properties and reduces material costs.
- PVC pipes and profiles (up to 40% loading)
- Polyethylene films and sheets
- Improves stiffness and dimensional stability
- Reduces material costs significantly
3. Paints and Coatings
GCC serves as an extender pigment in paint formulations, improving coverage and reducing costs.
- Interior and exterior paints
- Primers and undercoats
- Improves paint coverage and durability
- Reduces titanium dioxide requirements
4. Construction Materials
GCC is used in various construction applications as a filler and performance enhancer.
- Concrete and mortar additives
- Tile adhesives and grouts
- Improves workability and strength
- Reduces shrinkage and cracking
5. Rubber Industry
In rubber manufacturing, GCC improves processing characteristics and end-product properties.
- Tire manufacturing
- Rubber sheets and hoses
- Improves tensile strength and abrasion resistance
- Reduces material costs
Calcium Carbonate Manufacturer and Supplier in India
Shikhar Microns is a leading calcium carbonate manufacturer in India, producing high-grade Ground Calcium Carbonate (GCC) at our modern facilities in Alwar, Rajasthan. As a trusted calcium carbonate supplier, we serve customers across India and export markets with consistent quality, competitive pricing, and technical support.
- Location: Manufacturing plant in Alwar (MIA), Rajasthan — close to premium limestone and calcite deposits
- Capacity: Multi-thousand tonnes per month across mesh grades
- Range: GCC in 100–1500 mesh (74 µm to 10 µm), 97–99% CaCO₃ purity
- Industries served: Paper, plastics, paints, rubber, construction, adhesives, glass
- Quality: ISO-grade testing — every batch checked for purity, brightness, moisture, and particle size
Whether you need a calcium carbonate manufacturer in Rajasthan, a reliable GCC supplier for pan-India delivery, or a technical partner for custom formulations — Shikhar Microns is your single source. Contact us for quotes, samples, and COA.
GCC Price and Calcium Carbonate Price in India
Calcium carbonate price in India depends on purity, mesh size, brightness, and order volume. Coarser grades (200–400 mesh) are more economical; ultra-fine micronized GCC (800–1500 mesh) commands a premium due to the additional grinding and classification required.
- Standard GCC (200–500 mesh, 97%+ CaCO₃): Most cost-effective — ideal for construction, rubber, general plastics
- Fine GCC (600–800 mesh, 98%+ CaCO₃): Mid-range — paints, paper filler, PVC
- Micronized GCC (1000–1500 mesh, 99%+ CaCO₃): Premium — paper coating, high-end paints, specialty plastics
For current GCC price and ground calcium carbonate price, request a quote — we offer transparent pricing and bulk discounts for orders from across India.
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Frequently Asked Questions
PCC (Precipitated Calcium Carbonate): Chemically synthesized, uniform particle shapes, higher purity but more expensive
Related GCC Resources
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Read ArticleGCC in Plastic Industry
Uses of ground calcium carbonate in plastics for cost and performance.
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