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Member Since 14 Years
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Dolomite is a common rock-forming mineral. It is the primary component of the sedimentary rock known as dolostone and the metamorphic rock known as dolomitic marble. Limestone that contains some dolomite is known as dolomitic limestone.It is rarely found in modern sedimentary environments but dolostones are very common in the rock record. They can be geographically extensive and hundreds to thousands of feet thick. Most rocks that are rich in dolomite were originally deposited as calcium carbonate muds that were post-depositionally altered by magnesium-rich pore water to form dolomite.It is a double carbonate of calcium and magnesium (CaCO3, MgCO3). It is one of the important raw materials used in the iron and steel, ferro-alloys, glass, alloy steels, fertilizer industry, etc. Dolomite chips are also used in flooring tiles.Dolomite has a hardness of 3 1/2 to 4 on Mohs hardness scale and is sometimes found in rhombohedral crystals with curved faces.It is very similar to the mineral calcite. Calcite is composed of calcium carbonate (CaCO3) while dolomite is a calcium magnesium carbonate (CaMg(CO3)2). These two minerals are one of the most common pairs to present a mineral identification challenge in the field or classroom. The best way to tell these minerals apart is to consider their hardness and acid reaction. Calcite has a hardness of 3 while dolomite is slightly harder at 3 1/2 to 4. Calcite is also strongly reactive with cold hydrochloric acid, while dolomite will effervesce weakly with cold hydrochloric acid.It is a Calcium magnesium carbonate with a chemical composition of CaMg(CO3)2. Synonyms includes Marble, Limestone, dolostone etc.
SILENT FEATURES
| Dolomite Grades / Model no. | VD – 96H13 | VD – 96H15 | VD – 90M200 | VD – 95CF13 | VD – 90CR20 |
| Product Name | Premium Quality powder | High Grade powder | powder as filler | Coated Powder (1%) – I | Coated Powder (1.5 %) – II |
| Whiteness/Brightness (%) | 96% | 95% | 90% | 95% | 90% |
| Moisture (%) | 0.5 max | 0.5 max | 0.5 max | 0.5 max | 0.5 max |
| Specific Gravity (g/cm3) | 2.6 – 2.8 | 2.6 – 2.8 | 2.6 – 2.8 | 2.6 – 2.8 | 2.6 – 2.8 |
| Oil Absorption | 34-36 | 34-36 | 34-36 | 34-36 | 34-36 |
| Particle Size | 13 micron | 15 micron | 200 mesh | 15 micron | 20 micron |
| Top cut | 30 micron | 40 micron | 500 mesh | 40 micron | 40 micron |
| CaCO3 (%) | 54% – 56% | 54% – 56% | 52% – 55% | 54% – 56% | 52% – 55% |
| MgCO3 (%) | 40% – 42% | 38% – 40% | 30% – 32% | 38% – 40% | 30% – 32% |
| SiO2 (%) | 4% – 6% | 8 – 10% | 8 – 10% | 8 – 10% | 8 – 10% |
| Fe2O3 (%) | 2% | 2% | 2% | 2% | 2% |
| Al2O3(%) | 14% – 16% | 15% – 16% | 15% – 16% | 15% – 16% | 15% – 16% |
| LOI | 45% – 47% | 45% – 47% | 42% – 45% | 45% – 47% | 42% – 45% |
| Applications | Ceramics, Plastics, Detergents & Paints | Plastics & paints industry; Ceramics | Ideal for detergents and soaps | Paints and Plastics industry | Paints and Plastics industry |
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