Phlogopite Mica Powder from China - Reliable Suppliers and Factory for Industrial Applications

Phlogopite mica powder is a premium mineral product sourced from high-quality phlogopite ore in China. Produced through meticulous processes including crushing, grinding, screening, and quality inspection, this magnesium-rich mica is recognized for its striking golden, yellow-brown, bronze, or brownish hue. Due to its unique layered crystal structure and mineral composition, phlogopite mica powder is well-known for exceptional heat resistance, electrical insulation, flexibility, chemical stability, and reinforcement capabilities in various industrial applications. When compared to muscovite mica, phlogopite typically exhibits superior high-temperature resistance, making it an ideal choice for applications demanding thermal stability. It retains excellent physical properties even at elevated temperatures, proving suitable for heat-resistant coatings, welding electrodes, insulation boards, refractory materials, rubber products, plastics, and composite materials. Its natural flake structure enhances barrier properties, dimensional stability, surface smoothness, and mechanical reinforcement. As a leading supplier in China, WANCHENG MINERAL delivers high-quality phlogopite mica powder to global industrial clients. We ensure stable quality, precise particle size control, and reliable export services tailored to your needs. Our phlogopite mica powder is available in various mesh sizes and serves multiple purposes, including functional mineral filler, reinforcing material, insulating additive, heat-resistant filler, and decorative mineral component. For B2B buyers, choosing the right phlogopite mica powder goes beyond pricing. Critical factors such as particle size, color, purity, moisture content, heat resistance, compatibility with resin or coating systems, packaging conditions, and export reliability must be considered. WANCHENG MINERAL is committed to consistent production and practical application support, helping customers select the most suitable mica grades for their formulations while maintaining excellent standards as a trusted factory in the mineral industry.

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Product Details

Chemical Component	Typical Content	Description
SiO₂	38% - 45%	Main silicate component
MgO	18% - 29%	Key magnesium component of phlogopite
Al₂O₃	10% - 17%	Aluminosilicate component
K₂O	7% - 11%	Typical mica alkali component
Fe₂O₃	1% - 8%	Affects color and mineral characteristics
F	0.5% - 3%	May vary by ore source
CaO	≤ 2%	Minor component
Na₂O	≤ 1.5%	Minor alkali component
Loss on Ignition (LOI)	2% - 5%	Reference value, batch dependent

Frequently Asked Questions (FAQ)

Q What are the primary chemical components of phlogopite mica?

Phlogopite is primarily composed of Silicon Dioxide (SiO₂, 38% - 45%) and Magnesium Oxide (MgO, 18% - 29%), combined with Aluminum Oxide (Al₂O₃) and Potassium Oxide (K₂O).

Q How does the MgO content define phlogopite mica?

The high magnesium oxide content (18% - 29%) is the characteristic signature of phlogopite (magnesium mica), distinguishing it chemically and thermally from muscovite (potassium-aluminum mica).

Q What role does Fe₂O₃ play in phlogopite properties?

Iron oxide (Fe₂O₃) content ranges between 1% and 8%. It directly influences the mineral's color tone (ranging from golden to brownish/amber) and slightly alters electrical insulation capacity.

Q Why is there a Loss on Ignition (LOI) value of 2% - 5%?

Loss on Ignition reflects the loss of structural moisture and volatile hydroxyl/fluorine groups when the material is subjected to high calcination temperatures during chemical testing.

Q Can the fluorine (F) and alkali contents vary between batches?

Yes, trace elements such as Fluorine (F: 0.5% - 3%), CaO (≤ 2%), and Na₂O (≤ 1.5%) depend on the specific geological ore deposit and extraction source.

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