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.

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.

Construction and Building Materials

As a calcium carbonate filler in construction, GCC is used in concrete, mortar, tile adhesives, grouts, and wall putty. It improves workability, reduces shrinkage, and enhances compressive strength — making it one of the most widely used mineral fillers in the construction sector.

Water Treatment and Environmental

Calcium carbonate is used in municipal and industrial water treatment to neutralise acidic water, correct pH, and meet drinking water quality standards. It is also applied in industrial effluent treatment for pH stabilisation and heavy metal precipitation.

How Shikhar Microns Makes Ground Calcium Carbonate

Our manufacturing process at Alwar (MIA), Rajasthan covers four stages: sourcing high-purity limestone and calcite from certified mines; multi-stage crushing and grinding to target particle size; air classification and screening for consistent mesh distribution; and batch-level quality testing for purity, brightness, moisture, and particle size before dispatch.

Why Choose Shikhar Microns?

27+ years of mineral processing expertise from Alwar, Rajasthan:

• Consistent quality — every batch tested for purity, brightness, moisture, and particle size
• Custom mesh grades (100–1500 mesh) for your exact specification
• Competitive pricing with bulk discounts and pan-India delivery
• Technical support from product selection to application guidance

Technical Specifications

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.

Request a Quote WhatsApp for Price

Frequently Asked Questions

Related GCC Resources