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

Calcined Silver Mica Powder Suppliers in China | Factory-Direct Decorative Mica for Industrial Applications

Calcined silver mica powder is a unique mica product that undergoes controlled thermal treatment to enhance its color stability and achieve a striking silver appearance. During the calcination process, high-quality natural mica is heated to eliminate volatile impurities, resulting in a bright metallic silver finish that distinguishes it from ordinary mica powders. This remarkable product is ideal for decorative and functional applications requiring both aesthetic appeal and mineral performance. As a leading supplier in China, WANCHENG MINERAL offers calcined silver mica in coarse particle sizes of 10 mesh, 20 mesh, and 40 mesh. These sizes are particularly suited for applications where visible decorative effects and textured surfaces are desired. The product's layered structure ensures excellent flexibility, thermal resistance, electrical insulation, and chemical stability. After calcination, the mica maintains a clean and uniform surface, setting it apart from traditional white, golden, and black mica products. Our calcined silver mica is perfect for use in decorative systems, coatings, building materials, and various industrial applications. For international customers, WANCHENG MINERAL guarantees reliable supply, controlled particle size, and clean packaging. Our factory provides export-grade products along with quality inspection and customized supply solutions for distributors, coating manufacturers, construction material providers, and other industrial mineral users worldwide. Choose WANCHENG MINERAL for superior calcined mica solutions that enhance your projects with elegance and performance.

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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 (FAQ)

What are the main chemical constituents in this mineral material?

The predominant components are Silicon Dioxide (SiO₂) ranging from 42% to 48% and Aluminum Oxide (Al₂O₃) from 28% to 38%, which together form the structural silicate and alumina backbone.

How does the calcination process affect the material?

Calcination significantly reduces the Loss on Ignition (LOI) by releasing structurally bound water and volatile constituents, enhancing chemical stability and thermal resistance.

Why is Potassium Oxide (K₂O) an essential indicator?

Potassium Oxide (K₂O), typically between 7% and 11%, acts as an interlayer cation characteristic of mica group minerals, contributing to crystalline structure and electrical insulation performance.

How does the presence of Fe₂O₃ impact product performance?

Iron Oxide (Fe₂O₃) levels (1% – 6%) influence mineral coloration, optical clarity, and dielectric properties, making precise control necessary for specific industrial grades.

What are the typical thresholds for minor alkaline earth elements?

Minor elements such as Magnesium Oxide (MgO) remain between 0.5% – 3%, Calcium Oxide (CaO) is held at ≤ 2%, and Sodium Oxide (Na₂O) is strictly limited to ≤ 1.5%.

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