Submicron Calcium Carbonate Shine Carb 94 Clay Barytes Calcium Carbonate SOP Silica / Quartz Dolomite
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Industrial Mineral

Dolomite

Processed dolomite CaMg(CO₃)₂ with consistent purity for steel, glass, agriculture and construction applications.

Description of Dolomite

Dolomite is a carbonate mineral composed of Calcium Magnesium Carbonate with the chemical formula CaMg(CO₃)₂. Compared to Calcite (CaCO₃), Dolomite offers higher hardness and lower solubility in dilute acids, making it suitable for a wide range of industrial applications.

Technical Specifications

Characteristics Dolomite 5μ Dolomite 10μ Dolomite 240# Dolomite 500# Unit
Reflectance / Whiteness 94 - 96 93 - 96 90 - 93 92 - 93 %
Moisture Max 1.0 Max 1.0 Max 1.0 Max 1.0 %
Oil Absorption 25 - 35 20 - 25 15 - 20 20 - 22 gm/100gm
CaCO₃ 45 - 55 45 - 55 45 - 55 45 - 55 %
MgCO₃ 30 - 50 30 - 50 30 - 50 30 - 50 %
Acid Insoluble Max 20 Max 20 Max 20 Max 20 %
Retention Value on 240# Sieve - - Max 0.50 - %
Retention Value on 500# Sieve Max 0.05 Max 0.05 - Max 0.50 %
Additional Products:

RBL also produces Coarse Dolomite as well as Dolomite Chips 6/12, 10/24, 20/50, 30/80 for texture paint applications.

Key Benefits

  • Good Opacity Mineral
  • Excellent Shear & Compressive Strength
  • Good Whiteness & Smoothness

Applications

  • Paint & Coatings
  • Soap & Detergents
  • Smelting Agent in Iron & Steel
  • Foam Industry