
Industrial Mineral
Crystal Quartz
Versatile Calcium Carbonate for Industry & Construction
Overview
NNK supplies industrial, construction, and chemical grade limestone with high CaCO₃ content. Our limestone is used in steel manufacturing, cement production, chemical processing, and construction applications across global markets.
Available Grades & Variants
Clear Crystal QuartzRose QuartzSmoky QuartzQuartz Clusters
Chemical Composition
| Unit | ||
|---|---|---|
| Al₂O₃ | < 0.50 | % |
| Fe₂O₃ | < 0.10 | % |
| Moisture | < 0.50 | % |
| SiO₂ | 98-99.8 | % |
Physical Properties
| Unit | ||
|---|---|---|
| Colour | Clear / White / Pink | — |
| Form | Crystals / Lumps | — |
| Hardness | 7 | Mohs |
| Specific Gravity | 2.65 | g/cm³ |
Applications & Industries
Applications
- Glass Manufacturing
- Ceramics
- Decorative Stone
- Jewellery
- Electronics
Export Markets
- China
- Vietnam
- UAE
- Malaysia
- Thailand
Product Details
- Capacity
- As per buyer requirement
- Packaging
- 25 kg Bags, 50 kg HDPE Bags, 1 MT Jumbo Bags, Custom Packing
- Available Sizes
- 10-30 mm, 30-60 mm, 60-100 mm, Custom Sizes









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