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Posted by Admin on May, 02, 2026
Table of Contents
- What is Muscovite Mica? Properties & Types
- About Aalok Overseas India
- Product Range — Powder, Flakes & Sheets
- Technical Specifications & Grades
- Key Mica Production Areas in India
- Industries & Applications (Multilingual)
- Why Choose Aalok Overseas?
- Multilingual Keywords & Global Reach
- Frequently Asked Questions (FAQ)
- Contact & Enquiry
1. What is Muscovite Mica? Properties & Types
Muscovite Mica — scientifically known as KAl₂(AlSi₃O₁₀)(OH)₂ — is the most common and commercially important member of the mica mineral family. It is a naturally occurring phyllosilicate mineral with a characteristic sheet-like or layered crystal structure that gives it extraordinary physical and chemical properties unmatched by synthetic alternatives.
Aalok Overseas supplies premium-grade Muscovite Mica sourced from India's finest mica belts in Rajasthan and Jharkhand. Our mica products are processed through state-of-the-art facilities to deliver consistent purity, brightness, aspect ratio, and particle size — meeting the most exacting standards of buyers worldwide across cosmetics, industrial coatings, plastics, electronics, and construction sectors.
Why Muscovite Mica is Unique — Key Natural Properties
- Perfect Basal Cleavage: Splits into thin, flat, flexible, elastic sheets — unique among minerals
- Excellent Dielectric Strength: Outstanding electrical insulation properties (up to 200 kV/mm)
- High Heat Resistance: Stable up to 700°C–800°C without structural degradation
- Chemical Inertness: Resistant to acids, alkalis, oils, and organic solvents
- Low Thermal Conductivity: Excellent thermal barrier / insulation material
- High Aspect Ratio: Platelet structure enhances barrier properties in coatings and composites
- Natural Luster & Pearlescence: Distinctive sparkle used in cosmetics and decorative coatings
- Low Coefficient of Thermal Expansion: Dimensional stability under temperature variation
- Non-toxic & Environmentally Safe: Approved for cosmetic and food contact applications
Types of Mica Processed by Aalok Overseas
| Type | Mineral Formula | Key Feature | Main Use |
|---|---|---|---|
| Muscovite Mica | KAl₂(AlSi₃O₁₀)(OH)₂ | Silvery white, high luster, excellent electrical properties | Cosmetics, paints, plastics, electronics |
| Phlogopite Mica | KMg₃(AlSi₃O₁₀)(OH)₂ | Brown/golden colour, higher heat resistance (1000°C+) | High-temp electrical insulation, refractory |
| Sericite Mica | Fine-grained muscovite | Ultra-fine, silky luster, high brightness (D50 5–15µm) | Premium cosmetics, paper coating |
2. About Aalok Overseas India — Your Trusted Mica Partner
Aalok Overseas is a leading manufacturer, processor, and exporter of industrial and cosmetic-grade mineral powders headquartered in India. Leveraging India's position as one of the world's top three mica producers, we have developed a robust supply chain spanning the mica-rich belts of Rajasthan, Jharkhand, Bihar, and Andhra Pradesh.
Our mica processing facilities are equipped with dedicated grinding, classification, surface treatment, and blending lines designed to produce mica products — powder, flakes, and custom grades — that meet international quality standards. We serve customers in over 30 countries across Asia, the Middle East, Africa, Europe, and the Americas.
🏭 Processing Capabilities
- Dry grinding & air classification
- Wet grinding for cosmetic grade
- Surface treatment (silane, stearate, epoxy)
- Calcined mica processing
- Custom aspect ratio control
🌏 Export Reach
- 30+ countries served globally
- Asia, Middle East, Africa, Europe, Americas
- Full export documentation (COA, MSDS)
- FCL & LCL shipments handled
- Competitive FOB/CIF pricing
✅ Quality Assurance
- Chemical analysis per batch (XRF)
- Whiteness / brightness index testing
- Sieve & laser particle size analysis
- Aspect ratio measurement
- Dielectric strength testing
📦 Packaging Options
- 5 kg, 10 kg, 25 kg HDPE bags
- 50 kg woven bags with inner liner
- 500 kg / 1000 kg jumbo bags (FIBC)
- Custom labeling & branding
- Pallet & shrink-wrap for export
3. Product Range — Mica Powder, Flakes & Sheets
3.1 Muscovite Mica Powder (Dry & Wet Ground)
Our Mica Powder is produced by precision grinding of high-quality muscovite mica books, then classified to tight particle size distributions. Available in both dry-ground (standard industrial) and wet-ground (high-luster cosmetic and specialty coating) forms.
- Mesh sizes: 60 mesh to 400 mesh (and micronized D50 grades)
- Aspect ratios: 20:1 to 80:1 (high aspect ratio grades for barrier coatings)
- Brightness: 70 to 92+ (ISO brightness index)
- Surface treated grades available (stearic acid, silane coupling agents)
3.2 Muscovite Mica Flakes
Mica Flakes are coarser mica particles retaining the natural platelet geometry. They are used where a visible sparkle or decorative effect is desired, as well as in industrial applications requiring large aspect ratio reinforcement. Available in multiple flake sizes from coarse (2–4 mm) to fine (150–300 micron).
3.3 Muscovite Mica Sheets & Splittings
We supply Mica Sheets and Mica Splittings (thin mica booklets) for electrical insulation, heating element backing, and refractory applications requiring solid mica in sheet form.
3.4 Sericite / Fine Mica Powder
Sericite is an ultra-fine, silky-luster muscovite mica powder with a D50 of 5–15 microns. It is the premium grade used in cosmetics, high-end pearlescent pigments, and paper coating for its exceptional smoothness, coverage, and natural sheen.
3.5 Surface-Treated Mica Powder
For specialty applications in plastics and coatings, we offer surface-treated muscovite mica with silane coupling agents (for enhanced polymer compatibility), stearic acid coating (for improved dispersion in rubber), or aminosilane treatment (for epoxy composites).
4. Technical Specifications & Product Grades
Chemical Composition — Muscovite Mica (Typical Values)
| Oxide / Component | Typical Range | High Purity Grade |
|---|---|---|
| SiO₂ | 45 – 50% | 46 – 49% |
| Al₂O₃ | 28 – 36% | 30 – 35% |
| K₂O | 9 – 11% | 9.5 – 11% |
| Fe₂O₃ | <1.5% | <0.5% |
| MgO | <1.0% | <0.5% |
| Na₂O | <0.5% | <0.3% |
| TiO₂ | <0.3% | <0.1% |
| Loss on Ignition (LOI) | 3 – 6% | 4 – 5% |
| Moisture | <1% | <0.5% |
Physical Properties & Grade Comparison
| Parameter | Industrial Grade | Cosmetic Grade | Electrical Grade |
|---|---|---|---|
| Whiteness / Brightness | 70 – 78 | 82 – 92+ | 75 – 85 |
| Mesh Size | 60–200 mesh | 200–400 mesh / D50 5–20µm | 80–200 mesh |
| Aspect Ratio | 20:1 – 40:1 | 10:1 – 30:1 | 40:1 – 80:1 |
| Dielectric Strength | 100–150 kV/mm | N/A | 150–200 kV/mm |
| Max. Use Temperature | 700°C | 350°C | 700°C+ |
| pH (10% slurry) | 7.0 – 8.5 | 6.5 – 8.0 | 7.0 – 8.5 |
| Bulk Density | 0.3 – 0.5 g/cc | 0.2 – 0.4 g/cc | 0.3 – 0.5 g/cc |
| Specific Gravity | 2.76 – 2.88 (all grades) | ||
| Mohs Hardness | 2 – 2.5 (all grades) | ||
| Processing Method | Dry ground | Wet ground / micronized | Dry ground, high purity |
Standard Mesh / Particle Size Guide
| Grade | Mesh / Micron | Application |
|---|---|---|
| Coarse Flake | 16–40 mesh (1–2 mm) | Decorative coatings, joint compounds, roofing |
| Medium Flake | 60–100 mesh (150–250 µm) | Paints, rubber, plastics, welding electrodes |
| Fine Powder | 100–200 mesh (75–150 µm) | Industrial paints, drilling fluids, construction |
| Superfine Powder | 200–325 mesh (45–75 µm) | High-end paints, coatings, polymer compounds |
| Micronized (D50 20µm) | 400 mesh+ / 20 µm | Cosmetics, pearlescent pigments, plastics |
| Sericite (D50 5–10µm) | 5–10 µm | Premium cosmetics, paper coating, specialty coatings |
| High Aspect Ratio | Custom (AR 60:1–80:1) | Anti-corrosion coatings, barrier laminates |
5. Key Mica Production Areas in India
India holds one of the world's largest natural mica reserves and has historically been the global leader in mica production — accounting for approximately 60% of global mica output. Aalok Overseas has strategic sourcing partnerships across all major Indian mica belts, ensuring year-round supply of consistent quality raw material.
📍 Jharkhand — Primary Belt
The Koderma, Giridih, Hazaribagh, and Nawadah districts form India's most famous mica belt — the Koderma-Giridih-Nawadah belt. This region produces the highest quality ruby and white muscovite mica in the world, renowned for exceptional cleavage, brightness, and dielectric properties.
📍 Rajasthan
The Bhilwara, Ajmer, Tonk, and Jaipur districts are significant mica-producing areas. Rajasthan mica is known for good quality, large quantities, and suitability for both industrial and cosmetic-grade processing.
📍 Bihar
The Gaya, Nawadah, and Munger districts continue to be important mica sources. Bihar mica is widely used in the electrical insulation and cosmetic industries.
📍 Andhra Pradesh
The Nellore district is a significant producer of muscovite mica, particularly known for high-purity, low-iron ruby mica sheets and splittings used in electrical applications.
📍 Madhya Pradesh
The mica deposits of Balaghat, Chhindwara, and Mandla supplement India's supply chain with good quality mica used primarily in industrial and construction applications.
📍 Karnataka & Tamil Nadu
Southern India contributes mica from Mysore (Karnataka) and various districts of Tamil Nadu, primarily phlogopite mica used in high-temperature insulation applications.
6. Industries & Applications of Muscovite Mica
Muscovite Mica from Aalok Overseas serves an exceptionally diverse range of industries. Its unique combination of properties — luster, heat resistance, electrical insulation, chemical inertness, and platelet morphology — makes it truly irreplaceable in modern manufacturing.
6.1 Cosmetics & Personal Care Industry
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