Mica Powder Manufacturer & Supplier in China WANCHENG MINERAL (6).JPG

Calcined Silver Mica Powder from China Suppliers | Premium Factory-Processed Mica for Decorative Applications

Calcined silver mica powder is an advanced mica product specifically designed through controlled thermal treatment. This process involves heating selected natural mica at precise temperatures to enhance its color stability, eliminate volatile impurities, and achieve a unique metallic silver appearance. Unlike regular natural mica powder, our calcined silver mica delivers a striking silver visual effect, making it ideal for various decorative and functional applications where aesthetic appeal, stability, and mineral performance are essential. At WANCHENG MINERAL, a leading China supplier and factory of mineral products, we have developed this calcined silver mica specifically for customers seeking coarse mica particles or decorative flakes with a shiny silver surface. Currently, our product is available in 10 mesh, 20 mesh, and 40 mesh sizes, which are relatively coarse compared to fine mica powder. This makes it particularly suitable for achieving visible decorative effects, textured coatings, construction surface materials, functional fillers, insulation layers, and any industrial formulations where particle visibility or flake texture is desirable. Our product retains the natural layered structure of mica, providing excellent flexibility, thermal resistance, electrical insulation, chemical stability, and surface reflection. After calcination, the mica's surface appears cleaner and more uniform. The silver hue distinctly differentiates it from traditional white, golden, and black mica products, allowing it to serve as a special-effect mineral material in decorative systems, coatings, building materials, and various industrial applications. For international customers, stable color, precise particle size control, clean packaging, and reliable supply are crucial when selecting calcined mica products. WANCHENG MINERAL, as a trusted supplier in China, offers export-grade packaging, thorough quality inspection, and customized supply solutions for global distributors, coating manufacturers, construction material factories, and industrial mineral users.

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Product Details

Chemical Component	Typical Content	Description
SiO₂	42% – 48%	Main silicate component
Al₂O₃	28% – 38%	Main alumina component
K₂O	7% – 11%	Typical mica alkali component
Fe₂O₃	1% – 6%	Affects color and mineral characteristics
MgO	0.5% – 3%	Minor component
CaO	≤2%	Minor component
Na₂O	≤1.5%	Minor alkali component
Loss on Ignition	Reduced after calcination	Depends on calcination process

? Frequently Asked Questions

Q What are the predominant chemical components in this mineral material?

Silicon Dioxide (SiO₂ at 42% – 48%) and Aluminum Oxide (Al₂O₃ at 28% – 38%) serve as the primary silicate and alumina frameworks, providing superior mechanical strength, structural integrity, and chemical resistance.

Q What role does Potassium Oxide (K₂O) play in this product?

Potassium Oxide (K₂O at 7% – 11%) represents a typical mica alkali element, confirming the natural layered phyllosilicate mineral structure and contributing to thermal and electrical insulation performance.

Q How does the presence of Fe₂O₃ influence material performance?

Iron Oxide (Fe₂O₃ at 1% – 6%) primarily influences the optical properties, base hue, and specific mineral characteristics without compromising the core structural and insulating capabilities.

Q Why is Loss on Ignition (LOI) reduced after calcination?

High-temperature calcination effectively eliminates bound water, organic impurities, and volatile contents, resulting in significantly lower LOI and enhanced volume stability under extreme heat.

Q Are the minor components like MgO, CaO, and Na₂O controlled within standard ranges?

Yes. Minor components (MgO 0.5%–3%, CaO ≤2%, and Na₂O ≤1.5%) remain well within standard mineralogical limits, ensuring consistent compound formulation and high end-use compatibility.

Q Can the chemical composition vary based on industrial processing requirements?

While natural raw mineral limits are maintained, processing techniques such as calcination and refined grading allow controlled adjustments to specific parameters like LOI to meet target manufacturing requirements.

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