High-Quality Biotite Mica for Global Industries
Biotite Mica is a dark-colored, iron-rich member of the mica group of silicate minerals. It typically ranges from dark brown to black and exhibits the same platy, flexible structure as Muscovite.
With excellent thermal resistance, chemical inertness, and lubricating properties, Biotite is valued in oil-well drilling fluids, construction materials, refractories, and plastic fillers.
Processed and graded from high-quality natural deposits in Rajasthan (India), our Biotite Mica is screened into various mesh sizes for specialized industrial applications and export use.
Industrial Applications
The superior insulation properties, thermal resistance, and high chemical stability of Biotite Mica make it indispensable in a wide range of industries. Among its various applications, the most prominent uses include
Oil & Gas Drilling (LCM Grade)
- Construction & Cement Industry: Used as an additive in plasters, putties, and refractory materials
- Paints & Coatings: Adds strength, heat resistance, and anti-cracking properties
- Plastics & Rubber: Enhances tensile strength and dimensional stability
- Fireproof & Insulating Materials:
Withstands high heat and acts as a natural insulator
- Decorative Finishes: Used in stone coatings and textured paints for its natural shine
Technical Specifications
Chemical Formula
K(Mg, Fe) AlSis010 (OH) 2
Appearance
Dark brown to black, shiny platy flakes
Specific Gravity
2.8 – 3.2
Mohs Hardness
2.5 – 3.0
pH (10% slurry)
7.0 ± 0.5
Loss on Ignition (LOI)
< 6%
Moisture Content
< 1%
Shape
Platy, flexible flakes with perfect basal cleavage
Bulk Density
0.7 – 1.0 g/cm³ (depending on mesh size)
Thermal Stability
Excellent up to 800°C
Export Quality Features
•High purity grade with consistent particle size
•Moisture-free, dust-free, processed using advanced screening technology
•All grades available: Coarse, Medium, Fine & Super-Fine
•Available in Flakes / Powder / Scrap / Blocks / Sheets
Our Popular Grades
We offer premium export-quality mica in multiple particle size grades to ensure optimal performance, consistency, and controlled sizing. All grades are processed under strict quality standards and are available in bulk industrial packaging.
Grade
Mesh Range
Common Uses
Coarse Mica
4 – 10 mesh
Lost Circulation Material (LCM) for oil & gas drilling, wall textures, decorative, plasters
Medium Mica
10 – 16 mesh
General drilling fluids, refractory fillers, thermal insulation
Fine Mica
16 – 100 mesh
Fireproofing compounds, paints, electrical insulation
Powdered Mica
< 200 mesh / < 325 mesh
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