Dolomite Rock & Dolomite Powder
At NI Exports, we are one of India’s trusted exporters of high-quality Dolomite Rock and Dolomite Powder, supplying clients across Asia, Europe, Africa, and the Middle East.
NI Exports is fully managed and administered by Nandini India Private Limited, ensuring the same commitment to quality, reliability, and global service excellence.
Our Dolomite products are sourced from premium mineral reserves in India, processed with precision, and delivered in multiple grades and mesh sizes to meet industrial, agricultural, and construction applications worldwide.
What is Dolomite?
Dolomite is a natural double carbonate of calcium and magnesium (CaMg(CO₃)₂), known for its whiteness, hardness, chemical stability, and versatility.
It is widely used as a raw material in industries requiring high purity, controlled composition, and consistent performance.
Our Product Range
Dolomite Rock (Lump Form)
High-quality dolomite lumps are directly sourced from our mineral-rich quarries and sorted for industrial use.
Applications:
- Flux material in steel and iron manufacturing
- Refractory material for furnaces and foundries
- Raw material for glass, ceramics, and cement
Why to Use:
- High Ca–Mg content ensures stability at elevated temperatures
- Low silica and iron for cleaner metallurgical processes
- Improves strength, purity, and durability of final products
Dolomite Powder (Fine & Micronized Forms)
Available in mesh sizes ranging from 100–500 mesh for multi-industry applications.
Applications:
- Steel Industry – flux and refractory lining
- Paints & Coatings – filler for brightness and smoothness
- Plastics & Rubber – improves rigidity and finish
- Ceramics & Glass – enhances glaze and texture
- Agriculture – neutralizes soil acidity and adds magnesium
- Detergent Manufacturing – filler, whitening agent, pH stabilizer
Why to Use:
- High whiteness and purity
- Controlled particle size for smooth blending
- Balanced Ca–Mg composition
- Enhances performance while reducing production cost
Detergent-Grade Dolomite Powder
A specialized fine-grade dolomite powder optimized for detergent and cleaning formulations.
Applications:
- Filler and bulking agent
- pH buffer for formulation stability
- Mild abrasive for effective cleaning
- Improves flowability and reduces clumping
Why to Use:
- High whiteness (L value 92–98)
- Uniform particle size (200–400 mesh)
- Low impurities (SiO₂ < 1.5%, Fe₂O₃ < 0.5%)
- Enhances product quality while reducing cost
Calcined (Burnt) Dolomite
Thermally processed dolomite for high-reactivity applications.
Applications:
- Fluxing agent in steelmaking
- pH adjustment in water treatment
- Raw material for magnesia production
Why to Use:
- High reactivity and purity
- Consistent chemical composition
- Improves metallurgical and chemical efficiency
Varieties & Grades We Offer
| Product Type | Description | Primary Uses |
|---|---|---|
|
Natural Dolomite Rock |
Raw lumps of dolomite with
high purity |
Steel, glass, ceramics |
|
Industrial Dolomite Powder |
General-purpose fine powder |
Rubber, plastics, paints |
|
White Dolomite Powder |
High-brightness and low- impurity grade |
Paints, ceramics, detergents |
|
Micronized Dolomite Powder |
Fine mesh powder (up to 500 mesh) |
Plastics, coatings, glass
|
|
Detergent-Grade Dolomite Powder |
Controlled size, high whiteness |
Detergent and soap manufacturing |
|
Agricultural Dolomite Powder |
Enriched with magnesium carbonate |
Soil neutralization and fertilizer |
|
Calcined Dolomite (Burnt) |
High-temperature processed dolomite |
Metallurgical and water treatment |
Why Choose NI Exports Dolomite
Sourced from premium mineral belts ensuring purity and uniformity
Customized grades and mesh sizes for industry-specific requirements
Advanced processing facilities for brightness, fineness, and consistency
Efficient export network via major ports like Mundra & Nhava Sheva
Strict quality testing for composition, brightness, and reactivity
Customer-centric service with reliable supply, flexible packing, and timely delivery
Typical Chemical Composition
| Parameter | Range |
|---|---|
|
CaCO₃ |
30% – 35% |
|
MgCO₃ |
18% – 21% |
|
SiO₂ |
< 1.5% |
|
Fe₂O₃ |
< 0.5% |
|
Brightness (LValue) |
92 – 98 |
|
Mesh Size |
100 – 500 mesh |
Industries We Serve
Steel & Metallurgical Plants
Paints & Coatings Industry
Detergent & Soap Manufacturing
Plastic & Polymer Industry
Glass & Ceramics Production
Agriculture & Fertilizer Industry
Rubber & Tyre Manufacturing
Construction & Cement Industry