Refractory & Industrial Minerals

Magnesite for Industrial Applications

Galaxy Minerals welcomes enquiries for magnesite used in refractory and other industrial applications. Explore product information, available specifications and supply options to identify a suitable material for your requirements.

Magnesite mineral supplied by Galaxy Minerals
Product Introduction

Magnesite Supply for Industrial Requirements

Magnesite is a naturally occurring mineral primarily composed of magnesium carbonate (MgCO₃). It is an important mineral resource used in the production of magnesium oxide and in selected industrial applications.

Galaxy Minerals welcomes enquiries from buyers seeking magnesite for refractory materials, steelmaking and other applications where the material meets the required specifications.

Product suitability depends on chemical composition, impurities, physical properties and the requirements of the intended manufacturing process. Buyers can share their required grade, quantity and technical specifications so available supply options can be reviewed.

About the Product

What Is Magnesite?

Understanding its natural occurrence, chemical characteristics, and parameters for industrial evaluation.

Magnesite is a naturally occurring magnesium carbonate mineral with the chemical formula MgCO₃. It is an important source material for producing magnesium oxide, which is used in various industrial processes.

Magnesite composition and properties vary according to the deposit, mineral processing and product grade. These differences influence its suitability for refractory manufacturing and other industrial uses.

When evaluating magnesite, buyers should consider critical chemical and physical characteristics to ensure alignment with production specifications.

MgO Content

High magnesium oxide content is essential for high-performance refractory and chemical synthesis grades.

Impurity Levels

Levels of silica (SiO₂), iron (Fe₂O₃), and lime (CaO) directly influence thermal and industrial performance.

Thermal Stability

Loss on ignition (LOI) and calcination performance are vital parameters for heat-resistant applications.

Sizing & Form

Lump size, granular sizing, or fine powder forms tailored to your processing operations.

About Our Supply

Magnesite Supply Options

Sourcing, testing, and batch consistency aligned with metallurgical and manufacturing requirements.

Galaxy Minerals supplies raw and processed magnesite for varied industrial clients. We engage directly with clients to assess their required assay reports, thermal tolerance needs, and target chemical profiles.

Crushing, screening, and grading capabilities allow supply in raw lumps, aggregates, or finely milled powder forms, based on your manufacturing setup.

Buyers can provide specific technical datasheets, threshold limits for calcium or silica, and target shipment volumes for streamlined supply planning.

Our Product Range

Explore Our Magnesite Range

Select from raw and thermally processed magnesite products tailored to your process.

Raw Magnesite

Natural magnesium carbonate lumps and crushed aggregate for direct processing, chemical feedstock, or downstream calcination.

Available grades: High-grade and industrial-grade raw lump options.

Request Raw Magnesite Specs

Dead Burned Magnesite (DBM)

Sintered at high temperatures to provide high chemical inertness and extreme thermal resistance for refractory bricks and monolithic linings.

Available grades: Various bulk density and MgO purity grades.

Enquire About DBM

Caustic Calcined Magnesite (CCM)

Reactive magnesium oxide powder produced via controlled calcination, suitable for agricultural, chemical, and environmental applications.

Available grades: High-reactivity powders and granular forms.

Send a CCM Enquiry

Confirm individual assay compositions and custom packaging options with our technical team prior to procurement.

Applications

Where Magnesite Is Used

Essential mineral performance across heavy industry, metallurgy, and chemical sectors.

Refractory Linings

High thermal stability and slag resistance make magnesite indispensable in manufacturing refractory bricks, basic masses, and ramming mixes.

Steelmaking & Metallurgy

Employed as a basic slag-conditioning agent and lining protector in steel furnaces, converters, and secondary metallurgy units.

Chemical Synthesis

Crucial precursor for producing magnesium salts, high-purity magnesium chemicals, and specialized industrial formulations.

Agriculture & Environment

Used in animal feed formulations, soil conditioning, and effluent neutralization systems requiring reactive magnesium sources.

Material performance is closely linked to exact chemical assay thresholds and processing conditions.

Product Information

Key Product Considerations

Identifying the right magnesite material starts with clear chemical parameters, physical grade targets, and application requirements.

Discuss Your Requirements
  • Chemical Assay (MgO % and Impurities)

    Ensure target levels for MgO, SiO₂, CaO, and Fe₂O₃ match the thermal and chemical demands of your process.

  • Calcination State

    Determine whether your process requires raw natural carbonate (MgCO₃), dead-burned magnesia, or caustic calcined reactive powder.

  • Physical Particle Sizing

    Choose between crushed lumps, calibrated grain fractions, or finely micronized powder based on handling and blending needs.

  • Technical Documentation

    Review detailed Certificates of Analysis (COA) and material safety datasheets before placing bulk orders.

  • Supply Reliability

    Define order cadence, packaging options (jumbo bags or bulk), and destination ports for scheduled delivery.

Processing and Quality

From Mineral Sourcing to Supply

A rigorous quality control workflow designed to maintain consistent chemical assays and physical grades for demanding industrial applications.

01

Sourcing

Magnesite deposits are carefully selected based on mineral purity and consistency of chemical composition.

02

Sorting & Beneficiation

Hand-sorting and mechanical separation minimize gangue and silica-rich impurities.

03

Crushing & Milling

Multi-stage crushing and classification produce consistent lump, grain, and powder sizes.

04

Assay & Laboratory Testing

XRF and wet chemical analyses verify MgO purity, trace elements, and loss on ignition (LOI).

05

Packaging

Material is packed in moisture-protected jumbo bags, multi-ply paper bags, or loaded in bulk.

06

Dispatch & Logistics

Documentation, export permits, and ocean/road transport are executed to meet customer schedules.

Technical Documents

Magnesite Technical Documentation

Comprehensive assay reports and technical data sheets are available upon request to assist your quality control and production evaluation.

Document Availability Action
Technical Data Sheet (TDS) Available upon request Request
Certificate of Analysis (COA - Chemical Assay) Available per batch Request
Particle Size Distribution (PSD) Sheet Available upon request Request
Material Safety Data Sheet (MSDS) Available upon request Request
Grade Selection

Choosing the Right Magnesite Grade

Magnesite selection depends directly on required MgO concentration, reactivity levels, and thermal processing constraints.

  • Refractory & Sintering Grade: High MgO, low fluxing impurities (SiO₂, Fe₂O₃, CaO) designed for furnace linings and bricks.
  • Chemical & Agricultural Grade: Sized for ease of reaction and dissolution in environmental, feed, and chemical synthesis.
  • Custom Lump or Milled Powder: Calibrated to customer-specific size gradations from multi-inch lump down to 200/325 mesh.

Need Grade Assistance?

Share your required chemical tolerances, loss-on-ignition thresholds, and physical grain requirements.

Our technical team can review your production parameters and recommend a compatible material grade.

Get Grade Selection Assistance
Frequently Asked Questions

Frequently Asked Questions About Magnesite

Magnesite is a naturally occurring mineral composed primarily of magnesium carbonate (MgCO₃). It serves as a primary precursor for magnesium oxide, which is used extensively in refractory linings, steelmaking, agriculture, and industrial chemicals.

Raw magnesite is natural MgCO₃ mineral. Caustic Calcined Magnesite (CCM) is calcined at lower temperatures (600–1000°C) to yield reactive MgO, whereas Dead Burned Magnesite (DBM) is sintered at high temperatures (>1500°C) to produce an unreactive, highly refractory material.

In refractory applications, high levels of SiO₂ and CaO form lower-melting phases (silicates) that degrade refractory performance under high temperatures. Tighter limits ensure maximum refractory longevity.

Depending on customer requirements, magnesite can be supplied as run-of-mine lumps, crushed sizing (e.g., 0–1mm, 1–3mm, 3–5mm), or ground fine powders (such as 200 or 325 mesh).

Packaging options include 1 MT / 1.25 MT jumbo big bags with moisture liners, 25/50 kg bags on shrink-wrapped pallets, or loose bulk container shipments.

Submit your required MgO percentage, maximum impurity limits, particle size, volume requirements, and destination port through our enquiry form or via email.
Get In Touch

Looking for a Magnesite Supplier?

Contact Galaxy Minerals to discuss your magnesite requirements. Share your target chemical assay, physical sizing, quantity, and delivery destination so our team can provide tailored supply options.

Send an Enquiry Contact Our Team

Phone: +91 44 4353 4141

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