Wollastonite Exporter from India - Wollastonite Powder Supplier from Rajasthan

Shri Balaji Mines and Minerals is a trusted Wollastonite exporter from India, supplying high-quality wollastonite powder to ceramic tile, wall tile, paint, coatings and industrial manufacturers across global markets. Sourced from established wollastonite deposits in Rajasthan – one of India’s primary wollastonite producing regions – our material is processed, milled and exported with complete quality documentation to international buyers worldwide.

India is among the world’s leading wollastonite producing and exporting countries – alongside Mexico and China – and Indian wollastonite is actively imported by buyers in the USA, Vietnam, China, Germany and Turkey. We export wollastonite on FOB and CIF basis from Mundra port for containerised shipments and Kandla port for bulk vessel shipments.

What is Wollastonite?

Wollastonite – chemical formula CaSiO₃ – is a naturally occurring calcium silicate mineral with a theoretical composition of 48.3% calcium oxide (CaO) and 51.7% silicon dioxide (SiO₂). It belongs to the inosilicate group of minerals and is characterised by its acicular (needle-like) to fibrous crystal habit, white to off-white colour, low moisture absorption, chemical inertness, high brightness and distinctive low thermal expansion coefficient.

What makes wollastonite uniquely valuable in industrial applications – particularly ceramics – is its combination of properties that no other common mineral simultaneously offers:

Low fired shrinkage – wollastonite significantly reduces dimensional change during ceramic firing, improving dimensional accuracy and reducing warpage and cracking in tile production.

Fast firing capability – wollastonite promotes faster firing cycles in ceramic kilns, directly reducing energy consumption and production time – a significant economic benefit for tile manufacturers.

Flux action – wollastonite acts as a natural flux, lowering the vitrification temperature of ceramic bodies and improving fired density and strength.

High whiteness and brightness – contributes to fired whiteness of ceramic products, improving visual quality of tiles and ceramic goods.

Chemical inertness – non-reactive with most binders, polymers and chemical systems, making it compatible across ceramics, paint and industrial formulations.

These combined properties explain why wollastonite commands a premium over other calcium-containing minerals in ceramic body formulations globally.

Wollastonite Grades Available

We supply wollastonite in two grades suited to different applications and performance requirements:

Grade 1 - Commercial Ceramic Wollastonite

Our primary wollastonite grade - a commercially processed calcium silicate mineral with good wollastonite content, low iron and good fired whiteness. Specifically suited to ceramic tile body formulations, paint filler applications and general industrial use where the key benefits of low shrinkage, good whiteness and chemical inertness are required.

Grade 2 - Calcium Magnesium Silicate Ceramic Mineral

Our second grade is a naturally occurring calcium-magnesium silicate mineral - distinct from standard wollastonite in chemistry, with higher SiO₂ content and notable MgO content alongside CaO. While this grade does not conform to the standard wollastonite (CaSiO₃) chemical composition, it offers comparable low fired shrinkage and good whiteness performance that makes it a cost-effective functional alternative for ceramic tile body applications in markets where fired performance is the primary evaluation criterion.

Buyer note: Grade 2 is supplied as a calcium-magnesium silicate ceramic mineral — not as standard wollastonite. Technical buyers evaluating on fired performance parameters will find it suitable for tile body applications. Buyers requiring standard CaSiO₃ wollastonite chemistry should select Grade 1. Full test reports and Certificate of Analysis provided for both grades before bulk orders.

Technical Data Sheets (TDS) / Test Reports

Calcium Magnesium Silicate Mineral TDS - Shri Balaji Mines and Minerals — Calcium Magnesium Silicate Mineral TDS

Commercial Ceramic Wollastonite Mineral TDS - Shri Balaji Mines and Minerals — Commercial Ceramic Wollastonite Mineral TDS

Wollastonite Forms We Export

Wollastonite is supplied exclusively in powder form – available in two mesh sizes:

200 Mesh

Standard powder grade suited to ceramic tile body formulations and general paint filler applications where standard fineness is sufficient.

325 Mesh

Finer powder grade suited to premium ceramic tile applications, decorative coatings and formulations requiring finer particle size for better dispersion and surface finish.

Both grades available in both mesh sizes.

Applications of Wollastonite Across Industries

Ceramic Tiles Industry

Wollastonite's most important and widely recognised application is in ceramic tile body formulation - specifically floor tiles, wall tiles and ceramic floor coverings. It is used as a partial replacement or supplement to feldspar and other fluxes in tile bodies, delivering three simultaneous benefits that tile manufacturers globally specifically seek:

Low Shrinkage - reduces dimensional change during firing, improving tile size accuracy, reducing warpage and minimising defect rates in high-volume tile production lines. This directly translates to lower production rejects and reduced rework cost.

Fast Firing - promotes faster firing cycles, reducing kiln time and energy consumption per unit - a significant cost saving in energy-intensive tile manufacturing.

Flux Action - lowers vitrification temperature, improving fired body density, strength and surface finish.

Both Grade 1 and Grade 2 are applicable for tile body formulations - with Grade 1 recommended for buyers requiring standard wollastonite chemistry and Grade 2 for buyers evaluating on fired performance at competitive cost.

Paint and Coatings Industry

Wollastonite powder is used as a functional filler in paint and coating formulations - providing reinforcing properties, improved scrub resistance, reduced cracking and good brightness as an extender pigment in interior and exterior paints, industrial coatings and primers. Its acicular particle shape provides a unique reinforcing effect that improves coating film integrity and durability compared to platy or particulate fillers. Grade 1 is recommended for paint applications.

Plastics and Polymers Industry

High aspect ratio wollastonite is widely used as a reinforcing filler in engineering plastics - improving stiffness, dimensional stability, heat resistance and surface finish in polypropylene, nylon and other thermoplastic compounds. Note - for premium plastics reinforcement applications, buyers typically specify high aspect ratio wollastonite grades not covered by our current powder grades. Our powder grades are suited to general plastic filler applications.

Construction and Refractory Industry

Wollastonite is used in construction materials - particularly in fibre cement boards and construction ceramics — as a reinforcing filler improving tensile strength and reducing cracking. In refractory applications, wollastonite contributes thermal stability and low thermal expansion to refractory formulations for kiln and furnace linings.

Packaging Options

We offer flexible, export-standard packaging suited to different buyer requirements and shipping modes:

25 kg bags
50 kg bags
Jumbo bags

Custom packaging available on request based on buyer requirement.

Export Terms & Supply Information

Export Terms: FOB (Mundra / Kandla) and CIF
Minimum Order Quantity: 1 FCL (Full Container Load). Samples available before bulk orders.
Lead Time: 10 to 15 days to port of loading from order confirmation
Certifications: ISO 9001:2015 certified
Documentation: Certificate of Analysis, test reports, packing list, commercial invoice and all standard export documents provided with every shipment
Pricing: Competitive pricing available on request based on grade, mesh size, quantity and destination port

India is among the world’s leading wollastonite exporting countries. We export to buyers in the USA, Vietnam, China, Germany, Turkey and other global markets. New market inquiries from ceramic tile manufacturers, paint producers and industrial buyers worldwide are welcome.

Why Source Wollastonite from Shri Balaji Mines and Minerals?

Rajasthan Origin

Sourced from Rajasthan's established wollastonite deposits, known for consistent mineral quality and reliable supply.

Two Grades Available

Standard commercial wollastonite (Grade 1) and calcium-magnesium silicate ceramic mineral (Grade 2) - giving buyers a choice between standard chemistry and cost-effective performance-based alternative.

Two Mesh Sizes

200 mesh and 325 mesh available for both grades - suited to tile body, paint filler and general industrial applications.

Transparent Specifications

Full chemical composition tables and test reports provided for both grades before bulk orders - no surprises on chemistry or performance.

Low Fired Shrinkage

Grade 1 at 1.14% and Grade 2 at 1.64% - both delivering the low shrinkage benefit that ceramic tile manufacturers specifically seek from wollastonite-type minerals.

Low Iron Content

Grade 1 Fe₂O₃ 0.27% - excellent for whiteness-critical ceramic tile applications.

Sample Availability

Samples of both grades and both mesh sizes available before bulk orders for technical team evaluation.

Export-Ready Operations

ISO 9001:2015 certified with full export documentation and proven logistics to global destinations.

Frequently Asked Questions

Q: What is wollastonite used for in ceramic tiles?
Wollastonite is used in ceramic tile body formulations to reduce fired shrinkage, enable faster firing cycles and improve dimensional accuracy. These three benefits simultaneously reduce production rejects, lower energy consumption and improve product quality – making wollastonite a valued raw material for floor tile, wall tile and ceramic floor covering manufacturers globally.

Q: What is the difference between your Grade 1 and Grade 2?
Grade 1 is a commercial wollastonite with CaSiO₃-based chemistry, low Fe₂O₃ (0.27%) and low fired shrinkage (1.14%) – suited to standard wollastonite applications in ceramics and paint. Grade 2 is a calcium-magnesium silicate ceramic mineral with higher SiO₂ (62-65%) and MgO (7-8%) content – not standard wollastonite chemistry but offering comparable low fired shrinkage (1.64%) and better brightness (L 94.84) as a cost-effective ceramic tile body ingredient. Full test reports provided for both.

Q: What mesh sizes do you supply?
Both grades are available in 200 mesh and 325 mesh. 200 mesh is suited to standard ceramic tile body and general paint applications. 325 mesh is preferred for premium tile applications and fine coating formulations requiring finer particle size.

Q: Which countries import wollastonite from India?
India is one of the world’s top three wollastonite exporting countries alongside Mexico and China. Key importing markets for Indian wollastonite include the USA, Vietnam, China, Germany and Turkey. India accounts for approximately 30% of global wollastonite export shipments.

Q: Is wollastonite the same as calcium silicate?
Wollastonite is a specific mineral – calcium metasilicate (CaSiO₃) – with a defined crystal structure and chemical composition. “Calcium silicate” is a broader chemical term that covers several different mineral and synthetic compounds. Wollastonite is one specific calcium silicate mineral but not all calcium silicates are wollastonite.

Q: What is the HSN code for wollastonite export from India?
The HSN code for wollastonite is 2530 – covering other mineral substances not elsewhere specified or included.

Q: What is the minimum order quantity for wollastonite export?
Minimum order quantity is one FCL (Full Container Load). Samples of both grades and mesh sizes available before bulk orders.

Q: From which ports do you export wollastonite?
We export from Mundra port for containerised FCL shipments and Kandla port for bulk vessel shipments. Regular sailings to USA, Vietnam, China, European and Middle Eastern destinations.

Enquire About Wollastonite Supply from India

Looking for a reliable wollastonite exporter from India? Contact Shri Balaji Mines and Minerals for the right grade, mesh size and competitive pricing.

Test reports and samples of both grades available before bulk orders. Our team responds within 24 hours.