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Industrial
Minerals & Clays

Rajasthan-sourced China Clay (Kaolin) and Bentonite Clay — graded, tested, and export-ready for ceramics, paper, drilling, foundry, and civil engineering industries worldwide.

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🏺
China Clay (Kaolin)
Al₂O₃ 32–38% · Brightness 75–90%
→
⛰️
Bentonite Clay
Montmorillonite 70–85% · Bikaner & Barmer
→
2
Products in Category
Rajasthan
Primary Sourcing Region
6+
Industries Served
CoA
With Every Shipment
China Clay◆ Kaolin◆ Bentonite◆ Sodium Bentonite◆ Calcium Bentonite◆ Rajasthan Clays◆ Ceramics Grade◆ Paper Grade Kaolin◆ Foundry Bentonite◆ Drilling Fluids◆ Industrial Clays Exporter India◆ China Clay◆ Kaolin◆ Bentonite◆ Sodium Bentonite◆ Calcium Bentonite◆ Rajasthan Clays◆ Ceramics Grade◆ Paper Grade Kaolin◆ Foundry Bentonite◆ Drilling Fluids◆ Industrial Clays Exporter India◆
In this category
China Clay (Kaolin) Bentonite Clay Grade Comparison Applications
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China Clay Kaolin Bentonite Industrial Minerals Rajasthan
Rajasthan Sources
Kaolin-bearing clay belts
Bikaner — Sodium Bentonite
Barmer — Calcium Bentonite
Directly Sourced · Rajasthan, India
Category Overview

India's Premier
Clay Sourcing Belt

Rajasthan is one of India's most significant sources of high-quality industrial clays, with established deposits of China Clay (Kaolin) and Bentonite across its mineral belts. GeoCore Minerals sources both products directly from these regions, offering buyers consistent quality, dependable supply, and grades suited to a wide range of industrial applications.

◆From ceramics and paper coating to oil-well drilling fluids and foundry sand binding
◆Both Sodium and Calcium Bentonite available depending on buyer application
◆Washed, processed, and powder grades for Kaolin — as per buyer end-use
◆Chemical composition and CoA provided with every shipment
China Clay (Kaolin) ↓ Bentonite Clay ↓
01
Industrial Minerals & Clays

China Clay
(Kaolin)

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China Clay Kaolin white mineral India export
China Clay (Kaolin)
Rajasthan Clay Belts · Export Grade
Kaolin powder grade Kaolin crystal mineral Kaolin lump form
Ceramics Paper Paints Rubber Cosmetics

China Clay (Kaolin)

GeoCore Minerals supplies China Clay (Kaolin) sourced from Rajasthan's established clay belts, processed and graded to meet the requirements of diverse industries. Known for its fine particle size, high brightness, and chemical stability, our Kaolin is suited for ceramics, paper coating and filling, paints, rubber, and cosmetic-grade applications. We offer both washed and processed grades depending on buyer end-use.

Indicative Specifications
Al₂O₃ (Alumina)32% – 38%
SiO₂ (Silica)45% – 50%
Fe₂O₃ (Iron Oxide)0.5% – 1.5%
Brightness75% – 90% (grade-dependent)
WhitenessHigh — suitable for ceramic & paper grade
Moisture1% – 12% (lump vs. powder form)
Particle Size-200 mesh to -325 mesh (as per requirement)
FormLumps / Powder / Washed slurry (on request)
Specifications subject to confirmation per order and grade. Confirmed lab-tested specifications and Certificate of Analysis (CoA) provided with each shipment.
Applications
🏺
Ceramics & Sanitaryware
Ceramic body, glazes, tile production
📄
Paper Coating & Filling
Coated paper, printing grade
🎨
Paints & Coatings
Functional filler, opacity, texture
🔩
Rubber Industry
Reinforcing filler in rubber compounds
💄
Cosmetics Grade
Subject to additional purity testing
🧪
Pharmaceuticals
Excipient use (cert-dependent)
Packaging Options
🧺
25kg / 50kg Bags
HDPE / PP woven bags
📦
Jumbo Bags
500kg / 1MT FIBC
🚢
Bulk Loading
As per buyer requirement
Request Quote for Kaolin ↗ View Grade Comparison
02
Industrial Minerals & Clays

Bentonite Clay

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Bentonite Clay grey mineral Rajasthan export Bikaner Barmer
Foundry Drilling Civil Engineering Pelletization

Bentonite Clay

GeoCore Minerals supplies Bentonite Clay sourced from Rajasthan's well-known deposits in the Bikaner and Barmer regions, among India's primary Bentonite-producing belts. Valued for its high swelling capacity, viscosity, and bonding properties, our Bentonite is suited for foundry sand binding, drilling fluid formulation, civil engineering applications, and iron ore pelletization. Both Sodium and Calcium Bentonite grades are available.

Primary Grade
Sodium Bentonite
High swelling · Drilling fluids · Pelletization
Available Grade
Calcium Bentonite
Bonding grade · Foundry sand · Civil engineering
Indicative Specifications
Montmorillonite Content70% – 85%
Swelling Index8 – 16 ml/g (grade-dependent)
Moisture Content8% – 12%
pH8 – 10
Mesh Size-200 mesh (finer grades on request)
TypeSodium Bentonite / Calcium Bentonite
FormPowder / Granules
Specifications vary by source and grade. Sodium vs Calcium Bentonite have meaningfully different swelling properties — please specify application when requesting a quote. Confirmed CoA provided with each shipment.
Applications
⚙️
Foundry Sand Binding
Green sand molds for metal casting
🛢️
Drilling Fluids
Oil & gas exploration mud systems
🏗️
Civil Engineering
Waterproofing, slurry walls, liners
⛏️
Iron Ore Pelletization
Binder in pellet plant operations
🐄
Animal Feed Binding
Food-grade subject to certification
🌿
Environmental Sealing
Landfill liners, pond sealing
Packaging Options
🧺
25kg / 50kg Bags
HDPE / PP woven bags
📦
Jumbo Bags
500kg / 1MT FIBC
🚢
Bulk Loading
Container / vessel
Request Quote for Bentonite ↗ View Grade Comparison
Specification Reference

Grade Comparison Table

Both products side-by-side for quick buyer reference. All figures are indicative — confirmed specifications provided on order.

Parameter China Clay (Kaolin) Bentonite — Sodium Grade Bentonite — Calcium Grade
Primary Oxide Al₂O₃: 32–38% Montmorillonite: 70–85% Montmorillonite: 60–75%
SiO₂ Content 45% – 50% 45% – 55% 50% – 58%
Fe₂O₃ 0.5% – 1.5% Variable Variable
Swelling Index Not applicable 8 – 16 ml/g 3 – 7 ml/g
pH 6 – 8 8 – 10 7 – 9
Brightness 75% – 90% Not primary criterion Not primary criterion
Moisture 1% – 12% 8% – 12% 8% – 12%
Primary Forms Lumps / Powder / Slurry Powder / Granules Powder / Granules
Key Industries Ceramics, Paper, Paints, Rubber Drilling, Pelletization, Foundry Foundry, Civil Engineering
Packaging 25kg / 50kg / Jumbo / Bulk 25kg / 50kg / Jumbo / Bulk 25kg / 50kg / Jumbo / Bulk

All specifications are indicative ranges. Actual values confirmed per order. Certificate of Analysis (CoA) provided with every shipment.

Industries We Supply

Where These Clays
Are Used

Industrial clays from Rajasthan serve as essential raw materials across six major manufacturing sectors worldwide.

🏺
Ceramics & Tiles
China Clay (Kaolin) is a primary ceramic body material — providing plasticity during forming and high-temperature stability during firing, used in sanitaryware, floor tiles, and porcelain.
Kaolin
📄
Paper Industry
Kaolin is used as a coating pigment and filler in paper manufacturing, improving surface brightness, opacity, printability, and ink absorption in coated paper and board.
Kaolin
🎨
Paints & Coatings
Kaolin and Bentonite act as functional fillers and rheology modifiers in paints, improving consistency, preventing pigment settlement, and enhancing surface finish.
KaolinBentonite
⚙️
Foundry & Casting
Bentonite Clay is the primary binder in green sand molding systems for metal casting, providing the plasticity and strength needed for mold formation and core making.
Bentonite
🛢️
Oil & Gas Drilling
Sodium Bentonite is the standard additive for water-based drilling muds, providing viscosity, fluid loss control, and wellbore stability during oil and gas exploration.
Sodium Bentonite
🏗️
Civil Engineering
Bentonite is used in waterproofing membranes, slurry walls, tunneling, and as a sealing material in landfill liners, pond sealing, and geotechnical applications.
Bentonite
Sourcing & Quality

How We Source
& Supply

A transparent, documented sourcing process from Rajasthan's mineral belts to your facility.

01
Direct Mine Sourcing
We maintain established relationships with clay mines and processing units across Rajasthan's primary mineral belts, enabling consistent quality at the source.
02
Processing & Grading
Kaolin is processed through washing, drying, and powder grinding per buyer specification. Bentonite is dried, milled, and graded to required mesh size and type (Na/Ca).
03
Quality Testing
Pre-shipment sampling and chemical composition testing through accredited third-party laboratories. Test reports and Certificate of Analysis provided with every shipment.
04
Packaging & Dispatch
Available in 25kg/50kg HDPE/PP bags, jumbo bags (1MT FIBC), or bulk loading — as per buyer's logistics and container requirements.
05
Export Documentation
Full export documentation package: Commercial Invoice, Packing List, Bill of Lading, Certificate of Origin, CoA, and inspection report as required.
06
Port & Logistics
Shipments via Mundra, Kandla, and JNPT — supporting FOB, CIF, CFR, and other Incoterms as per buyer preference and destination country.
Ready to Source?

Request a Quote for
Industrial Clays

Share your product requirements and we'll respond with pricing, availability, and a sample offer within 24–48 hours.

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Response within 24–48 hours
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Sample available on request
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CoA & test report with every order
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FOB / CIF / CFR Incoterms supported
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