Sheets & splittings
Clear blocks of mica, and the thin films split from them, cut to shape or left natural.
For insulation · heating elements · electronics
Our main line
Mica
Sheets · flakes · scrap · powder
Natural muscovite mica from India, for buyers in China
FormsSheets, flakes, scrap and powder
Every lotTested, with its own lab report
ShippedFrom Indian ports to China
What it is
Layer by Layer
Mica is a natural mineral that grows in layers, so a block of it splits into thin, clear, flexible sheets.
Muscovite, the light-coloured mica, does not carry electricity, stands high heat, and resists water and most chemicals. Industry has relied on it for more than a century, and India, one of the oldest sources of mica in the world, still supplies factories everywhere. Coast Origin supplies it in four forms, sorted and graded to each buyer's order.
Forms we supply
Four Forms, One Source
Each form is sorted and graded to the buyer's order. Tell us what your process needs, and we match the grade.
Flakes
Small, clean pieces of mica, screened by size.
For paints · plastics · rubber · oil-well drillingScrap
Mixed pieces left from mining and splitting: the raw material for grinding.
For mica powder · mica paper · boardPowder
Dry-ground or wet-ground mica, milled to the mesh you need.
For paints & coatings · cosmetics · welding rods · plasticsGrades and sizes: powder from 20 to 325 mesh; flakes, scrap and sheets graded to your order.
Specifications
Tested on Every Lot
These are the measurements in a mica lab report. Coast Origin's own values go here from its reports, and every lot you buy comes with a report of its own.
Values: from Coast Origin's lab reports
| Measure | Usual method | Coast Origin |
|---|---|---|
| Silica SiO₂, % | XRF | — |
| Alumina Al₂O₃, % | XRF | — |
| Potash K₂O, % | XRF | — |
| Iron oxide Fe₂O₃, % | XRF | — |
| Magnesia MgO, % | XRF | — |
| Lime CaO, % | XRF | — |
| Soda Na₂O, % | XRF | — |
| Titania TiO₂, % | XRF | — |
| Loss on ignition % | Heating to 1,000 °C | — |
| Measure | Usual method | Coast Origin |
|---|---|---|
| Moisture % | Drying at 105 °C | — |
| Whiteness % | Whiteness meter | — |
| Particle size mesh or µm (flakes, powder) | Sieve or laser | — |
| Bulk density g/cm³ (powder) | Tapped density | — |
| Visual quality class (sheets) | ASTM D351 | — |
XRF (X-ray fluorescence) is the standard laboratory test of a mineral's chemistry. ASTM D351 grades sheet mica by how clear it is.
Quality & lab
Checked Before It Ships
You see the results before you buy, not after.
- 01Sample
A sample is taken from every lot.
- 02Test
A laboratory measures its chemistry, size and moisture.
- 03Report
The results go into a lab report that carries the lot number.
- 04Your approval
You get the sample and its report before you order. An independent inspection at loading can be arranged on request.
Lab reportMica powder · PDF from Coast Origin
Lab reportMica flakes · PDF from Coast Origin
Uses
Where Mica Goes to Work
Few minerals do as many jobs. These are the main industries that buy it.
Electrical insulation
Sheets and splittings insulate motors, heaters and transformers: mica does not carry electricity and stands high heat.
Paints & coatings
Ground mica makes a paint film tougher and helps it resist weather and water.
Plastics & rubber
As a filler, it adds stiffness and keeps moulded parts from warping.
Cosmetics
Fine, pure mica gives powders and pearl pigments their soft shimmer.
Welding rods
Mica powder is part of the coating on welding electrodes.
Drilling & building
Flakes seal cracks in oil-well drilling; powder goes into plaster, joint compound and roofing.
In pictures
From Mine to Ship
How mica is mined, sorted, graded and packed for export. The photographs are illustrative.
Packing & shipping
Packed for the Sea
Packed, documented and shipped from Indian ports to your port in China.
Packing25 kg or 50 kg bags, or 1-tonne jumbo bags, as you prefer
Price termsFOB or CIF, as you prefer
Shipped fromAn Indian port, named in each quotation
Lead timeConfirmed with each order
Documents
Papers That Travel With It
With every shipment
- Lab report (certificate of analysis) for each lot
- Commercial invoice
- Packing list
- Certificate of origin
- Bill of lading
Company registrations
- Export registration (IEC) copy on request
- GST registration copy on request
- Mining lease or licence copy on request
- Independent inspection on request
Bulk enquiry
Ask for a Sample
Ask for a Sample
and a Price
Tell us the form, grade and quantity you need. We'll come back with a sample, its lab report and a price.
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