QUARTZ
Coastal Exim
QUARTZ (SiO2)
Quartz, also known as rock crystal, is the crystalline form of (SiO2) belonging to the trigonal system.
Quartz is one of the most prevalent minerals found in the Earth’s crust and serves as the primary silica mineral, present in significant quantities within igneous, metamorphic, and sedimentary rocks. This mineral is extensively utilized as a fundamental raw material in the ceramic industry. In this context, quartz plays a crucial role in minimizing shrinkage during the drying and firing processes while enhancing the rigidity of the ceramic body.
We can supply Quartz into
lumps (10mm to 100mm)
Chips (0 to 6mm)
Powder (100 to 300#)
Sand (Varied Mesh Sizes as per end user choice)




Typical Technical Specifications
Properties Unit Value
SiO2 % 99.70% (00.20%)
Fe2O3 % 00.04% (max)
Al2O3 % 00.12% (00.05%)
Cr2O3 % 0.00040 (max)
TiO2 % 0.016
LOI % 0.17
Refractive index — 1.544 – 1.553 – Dr + 0.009 (B – G interval)
Specific gravity — 2.65 constant; variableinimpure varieties
Melting point — 1650 (75) 0C
Streak — White
Boiling point — 22300C
Crystal system — Trigonal
Solubility — H2O insoluble
Coastal Exim
industries we serve
we specialize in delivering top-quality mining solutions tailored to various industries. Our expertise ensures efficiency, safety, and sustainability across multiple sectors, including
- Power
- Steel / Ferro Alloys
- Cement
- Pharma / Ethanol
- Fertilizers
- Tiles (Sanitaryware,Tableware)
- Paper
- Glass
- Refractories
- Insulator Industry