CaMg(CO₃)₂RM-DOL-001

Dolomite Powder

Dual-mineral strength — calcium and magnesium combined

Premium Dolomite Powder manufactured from high-grade dolomite rock.

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CaMg(CO₃)₂

Purity

95%+

Mesh Size

100–500

Whiteness

88-95

Product Overview

Dolomite powder is a naturally occurring mineral composed of calcium magnesium carbonate — CaMg(CO₃)₂. At Ridhi Sidhi Microns, we process high-grade dolomite rock from Rajasthan's Aravalli belt, delivering a finely ground powder that combines the functional benefits of both calcium and magnesium in a single, cost-effective industrial mineral. Our dolomite processing begins with careful geological selection at our sourcing sites in the Aravalli range. The raw dolomite blocks undergo primary crushing, secondary grinding, and precision screening to achieve the target particle size distribution. Dolomite powder is distinguished from pure calcite by its magnesium content, which imparts unique properties including higher hardness (Mohs 3.5–4), greater chemical stability, and improved thermal resistance. In the rubber industry, dolomite serves as a cost-effective reinforcing filler. For glass manufacturing, dolomite is a critical flux and stabilizer ingredient. In ceramics, it acts as a flux that lowers firing temperatures. In construction, dolomite is used in cement manufacturing and ready-mix concrete. In agriculture, it serves as an effective soil conditioner and pH adjuster. Every batch is tested for chemical composition, whiteness, moisture, and particle size to ensure consistency.

Industrial Applications

Rubber Industry

Reinforcing filler improving hardness, abrasion resistance. Used in footwear, automotive parts.

Glass Manufacturing

Critical flux providing CaO and MgO. Improves chemical durability and thermal shock resistance.

Ceramics

Flux in tile body formulations. Lowers firing temperature while improving strength.

Construction

Used in cement manufacturing, ready-mix concrete, Wall Putty,Tile Adhesives and road construction.

Agriculture

Soil conditioner providing calcium and magnesium nutrients. Corrects soil acidity.

Physical Properties

Chemical Formula	CaMg(CO₃)₂
CaCO₃ + MgCO₃	≥ 95%
Whiteness	88–92%
MgO Content	18–21%
CaO Content	28–31%
Moisture	≤ 0.5%
pH	9.0–10.0
Specific Gravity	2.85 g/cc
Mohs Hardness	3.5–4
Available Mesh Sizes	100, 200, 300, 400

Chemical Composition

CaCO₃	54–58%
MgCO₃	38–42%
SiO₂	≤ 1.0%
Fe₂O₃	≤ 0.15%
Al₂O₃	≤ 0.3%
Moisture	≤ 0.5%
LOI	46–47%

Packaging Options

✓ 25 kg HDPE bags
✓ 50 kg HDPE bags
✓ 1 MT jumbo bags / FIBC

Available Standard Grades

We manufacture specific grades optimized for different industrial applications. Custom micron sizes available on request.

Grade Name	Mesh / Particle Size	Primary Application
RM-DOL-100	100 Mesh	Rubber, Road Construction
RM-DOL-200	200 Mesh	Glass, Ceramics, Cement
RM-DOL-300	300 Mesh	Paints, Polymers, Wall Putty
RM-DOL-400	400 Mesh	Tile Adhesives, Premium Paints
RM-DOL-500	500 Mesh	Ultrafine Coatings, Agriculture

Frequently Asked Questions

What is the difference between dolomite and calcite powder?

Dolomite contains both calcium and magnesium carbonates; calcite is pure calcium carbonate. Dolomite offers higher hardness and thermal stability.

Is dolomite suitable for glass manufacturing?

Yes. Dolomite is critical in glass manufacturing, providing both CaO and MgO.

What mesh sizes do you supply?

We supply in 100, 200, 300, and 400 mesh as standard.

Dolomite Powder

RM-DOL-001 · Direct from Manufacturer