Commercial-grade dolomite (CaMg(CO₃)₂) — independently verified by ALS Brisbane at CaO 30.2%, MgO 21.0%. Supplied for steel blast-furnace flux, ceramic body and glaze, agricultural soil conditioning, water treatment, rubber and industrial filler use.
ALS-Verified · CaO 30.2% / MgO 21.0%| Specification | Value |
|---|---|
| Chemical Formula | CaMg(CO₃)₂ |
| CaO Content | 30.2% (ALS-verified) |
| MgO Content | 21.0% (ALS-verified) |
| SiO₂ (Silica) | 5.01% (ALS-verified) |
| Fe₂O₃ (Iron Oxide) | 0.36% (ALS-verified) |
| Al₂O₃ (Alumina) | 0.10% (ALS-verified) |
| Loss on Ignition (LOI) | 43.59% (ALS-verified) |
| Mesh Size | 635 mesh (20 microns) |
| Moisture | <0.5% |
| Packaging | 25 kg bags, 1 tonne bags, bulk containers |
Commercial-grade dolomite powder (CaMg(CO₃)₂) — calcium magnesium carbonate for steel blast-furnace flux, ceramic, agricultural, water treatment and industrial use. Sourced by PIME Australia from audited Indian mines and independently verified by ALS Brisbane.
Dolomite is a primary CaO/MgO source in ceramic body and glaze recipes — particularly for stoneware, terracotta and tile manufacturing where the SiO₂ content in the dolomite contributes usefully to the body chemistry. PIME's commercial-grade dolomite suits ceramic-grade body work and tile-manufacturer reformulation runs.
In agriculture, dolomite acts as an efficient soil amendment, supplying essential magnesium and calcium while raising soil pH. Widely used in crop production to correct acidic soils, improve nutrient availability, and enhance microbial activity. Supports sustainable farming practices and crop yield optimization.
Dolomite is employed in water treatment systems for pH regulation and hardness control. Its fine particle distribution and chemical stability enable effective filtration media applications and alkalinity adjustment in municipal and industrial water treatment facilities.
As a flux in steel and iron production, dolomite contributes CaO and MgO to the slag chemistry, improving fluidity and helping bind impurities. PIME's commercial-grade dolomite (total insolubles ~ 5.5%) sits within standard Blast Furnace (BF) grade specification (≤ 7%) and is well-suited to BF flux use. Not Steel Melting Shop (SMS) grade — that requires sub-2% silica.
In rubber production, dolomite serves as a filler and processing aid, enhancing mechanical properties and durability. Used in both natural and synthetic rubber compounds, it improves hardness, tensile strength, and processing characteristics while maintaining product consistency.
Dolomite powder is utilized in detergent formulations as a functional additive, improving flow properties, water absorption, and stability. Its fine particle size ensures uniform distribution in detergent blends and enhances product performance in both powder and granular detergent systems.
CaO 30.2%, MgO 21.0%, total insolubles ~5.5%. Suitable for steel blast-furnace flux, ceramic body and glaze work, and general industrial filler use. Full COA available on the lab reports page.
Balanced CaO/MgO chemistry well above the 45% combined-oxide threshold required for agricultural lime and soil conditioning. Cost-effective for broadacre soil amendment.
Low-iron and low-silica grades suited to glass, foundry refractory or cosmetic-grade use are not currently stocked, but can be sourced and assayed against your spec on a forward-order basis. Contact us for a sample qualification.
Discuss your dolomite powder requirements with our technical team. Volume discounts, custom specifications, and direct export arrangements available.
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