Solar cells
Quartz is reduced in electric furnaces to solar-grade silicon, which is sliced into the wafers of solar cells.
Our minerals
Quartz
Lumps · grits · powder
High-purity quartz from India, for solar and semiconductor makers worldwide
FormsLumps, grits and powder
GradeHigh purity, for solar and semiconductors
ShippedFrom Indian ports, worldwide
What it is
Pure, Hard and Clear
Quartz is silica (silicon dioxide, SiO₂), one of the most common minerals in the earth's crust.
It is hard (7 on the Mohs scale), stands heat, and resists almost every chemical. The purer the quartz, the more it is worth: the purest grades become the silicon of solar cells and chips, and the crucibles and tubes they are made in. Coast Origin deals in these high-value grades, in three forms, sorted and graded to each buyer's order.
Our main buyers
For Solar and Semiconductors
We deal mainly in high-value, high-purity quartz, for the factories that make silicon, solar panels and semiconductors, and the crucibles and tubes they work with.
Semiconductors
The purest grades are the source of electronic-grade silicon, the material of chips.
Crucibles
High-purity quartz is melted into the crucibles in which single-crystal silicon ingots are grown.
Tubes & boats
Quartzware that stands extreme heat and keeps chip and solar-cell making free of contamination.
Solar glass
Fused quartz and clear, high-transmittance glass shield solar cells and let the most light through.
Silicon metal
Lumps are smelted into metallurgical-grade silicon, the first step towards every silicon product.
Forms we supply
Three 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.
Lumps
Snow-white and glassy lumps, sorted by colour and purity.
For solar and electronic-grade silicon · silicon metalGrits & chips
Quartz crushed and screened into even sizes.
For engineered stone · ceramics · flooringPowder
Quartz ground to a fine flour, to the mesh you need.
For ceramics & glazes · glass · paints · rubberGrades and sizes: lumps from 10 to 300 mm, grits and chips from 0.1 to 10 mm, and powder from 200 to 325 mesh, all to your order. A sample is sent on request.
In pictures
From Mine to Ship
How quartz is quarried, 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, anywhere in the world.
Packing1-tonne jumbo bags or 50 kg bags, or loose in the container
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
- 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 and a price.
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