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Biotite Mica Powder from China Factory - High-Quality Suppliers for Industrial Applications and Custom Formulations
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Biotite Mica Powder from China Factory - High-Quality Suppliers for Industrial Applications and Custom Formulations

WANCHENG MINERAL is a leading supplier and factory of biotite mica powder in China, offering high-quality natural dark-colored mica mineral powder sourced from carefully selected biotite ore. Our biotite mica powder is produced through advanced processes including crushing, grinding, classification, and rigorous quality inspection. Known for its distinctive layered silicate structure, biotite provides exceptional heat resistance, chemical stability, and excellent electrical insulation, making it a versatile choice for various industrial applications.

Unlike white muscovite mica powder, biotite mica powder features a darker natural color and higher levels of iron and magnesium, making it ideal for applications requiring a heat-resistant dark mineral filler or functional flake additive. Its unique plate-like particle morphology enhances barrier properties, dimensional stability, surface texture, and mechanical reinforcement in coatings, plastics, rubber, ceramics, construction materials, welding materials, friction products, and specialty formulations.

As a trusted China supplier, WANCHENG MINERAL offers biotite mica powder in various mesh sizes and specifications tailored to meet customer requirements. Our products are suitable for both general industrial use and customized formulations, with careful control over particle size, color, purity, moisture content, and packaging. With our stable raw material resources and professional mineral processing expertise, WANCHENG MINERAL delivers reliable and effective biotite mica powder solutions to customers worldwide.

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    Product Details

    Chemical Composition Specification

    Chemical Component Typical Content Description
    SiO2 35% - 45% Main silicate component
    Al2O3 10% - 18% Aluminosilicate component
    Fe2O3 + FeO 12% - 28% Contributes dark color
    MgO 8% - 18% Typical biotite component
    K2O 6% - 10% Interlayer potassium component
    CaO 0.5% - 3% Minor component
    TiO2 0.5% - 3% Trace or minor component
    Loss on Ignition 1% - 5% Depends on ore source

    Frequently Asked Questions

    What is the primary chemical compound in this material?
    The primary component is Silicon Dioxide (SiO2), which constitutes 35% to 45% of the total composition, forming the main silicate backbone.
    What component causes the characteristic dark coloration?
    The presence of Iron Oxides (Fe2O3 + FeO) ranging from 12% to 28% contributes significantly to the dark pigmentation of the mineral.
    What is the typical concentration of Potassium Oxide (K2O)?
    Potassium Oxide (K2O) typically ranges between 6% and 10%, functioning as a crucial interlayer potassium component within the crystalline structure.
    Why does the Loss on Ignition (LOI) value vary between 1% and 5%?
    The Loss on Ignition depends directly on the specific geological ore source and volatile component content present prior to thermal processing.
    What are the minor or trace elements present in this composition?
    Calcium Oxide (CaO) and Titanium Dioxide (TiO2) serve as minor or trace constituents, each typically accounting for 0.5% to 3% of the total profile.
    What role does Magnesium Oxide (MgO) play in this mineral?
    Magnesium Oxide (MgO) accounts for 8% to 18%, acting as an essential and typical biotite component within the sheet-silicate matrix.

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    FAQ

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