Metals & minerals

Premium Biotite Mica Powder China Factory and Suppliers for Industrial Use

Leading China factory and suppliers of premium Biotite Mica. High thermal stability and acid-alkaline resistance for oil drilling, paper making, and firefighting agents. Get high-purity black mica with excellent electrical insulativity from our certified plant.

SupplierHebei Junlan Packaging Technology Co., LTD.www.glorystarexport.com
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About this product

Product information from the supplier.

Biotite Mica is a premium dark-colored mineral renowned for its exceptional physical and chemical stability. Characterized by its unique layered structure and high thermal resistance, it serves as a critical industrial additive in high-demand sectors. Its ability to be cleaved into thin, flexible sheets makes it an indispensable material for enhancing structural integrity and providing superior insulation in diverse applications.

Specially engineered for high-performance environments, our Biotite Mica is widely utilized in oil drilling fluids to optimize viscosity and in paper manufacturing to improve texture and durability. Beyond these, its antibacterial and deodorizing properties have made it a trending raw material for advanced non-woven fabrics used in healthcare masks, ensuring high-efficiency protection and functional excellence.

Detailed Parameters

SiO₂ Content35.26% - 51.56%Al₂O₃ Content10.65% - 29.88%
Fe₂O₃ Content11.5% - 25.8%MgO Content1.42% - 19.45%
K₂O Content6.5% - 11.89%CaO Content0.4% - 0.6%
Na₂O Content0.6% - 0.7%Mohs Hardness2.5 - 3.0
Available Mesh4 mesh to 3000 meshCertificationISO Certified / National Patents

Key Advantages


Chemical Resistance

Exceptional stability against corrosive agents, making it ideal for harsh industrial environments.


Thermal Stability

Maintains structural integrity under extreme heat, providing low thermal conductivity for insulation.


Surface Luster

Distinctive vitreous to pearly luster that enhances the aesthetic appeal of paints and luxury papers.


Mechanical Strength

High durability and abrasion resistance, essential for high-pressure oil drilling operations.


Functional Health

Natural antibacterial and deodorizing properties, ideal for high-end medical mask production.


Versatile Grading

Available in a vast range of mesh sizes from coarse 4-6 mesh to ultra-fine 3000 mesh.

Product Gallery

Management Platforms

Quality Control

ISO certified production lines ensuring consistent mineral purity and grain size distribution.

Technical Innovation

23 national patents applied to mineral processing for optimized chemical composition.

Custom Processing

Tailored mesh specifications and specialized grinding to meet unique industrial requirements.

Logistics Mastery

Flexible packaging from 25kg PP bags to 1000kg jumbo bags for global shipment.

Application Support

Expert consultation for integrating biotite into rubber, plastic, and coating formulations.

Global Compliance

Strict adherence to international safety and environmental standards for mineral exports.

Investment Return Comparison

Key MetricStandard MicaBiotite Mica
Thermal ResistanceModerateSuperior High-Heat Stability
Chemical StabilityGeneralExceptional Corrosion Resistance
Oil Drilling EfficacyBasic ThickeningHigh-Performance Mud Viscosity
Paper TextureStandard FinishPremium Gloss & Enhanced Strength
Special FunctionsNoneAntibacterial & Deodorizing

Frequently Asked Questions

Q: How does Biotite Mica improve oil drilling fluids?

Biotite Mica acts as a powerful thickening agent in drilling muds, increasing viscosity and stability. This ensures that rock cuttings are efficiently carried to the surface while cooling the drill bit under high-pressure conditions.

Q: What role does it play in the paper-making industry?

It is used as a filler to improve structural integrity, flexibility, and wear resistance. Additionally, its natural luster provides a smooth, glossy finish suitable for luxury packaging and artistic papers.

Q: Can Biotite Mica be used in face mask production?

Yes, it is highly popular in non-woven fabrics for masks. It is first processed into a masterbatch, providing the final product with antibacterial, deodorizing, and far-infrared ray functions.

Q: What is the difference between Biotite and other mica types?

Biotite is a dark-colored mica rich in iron and magnesium, granting it superior thermal stability and a unique vitreous luster compared to lighter varieties like muscovite.

Q: What packaging options are available for bulk orders?

We offer standard 25kg PP or paper bags, as well as 500kg to 1000kg jumbo bags. Custom packaging is also available to meet specific logistical requirements.

Q: Which mesh sizes are most common for industrial use?

While we provide ranges from 4 to 3000 mesh, the most common specifications include 4-6, 10-20, 20-40, 40-60, and 325 mesh depending on the application.

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