Dolomite Powder / Stone for Construction
Dolomite is a common rock-forming mineral. It is a calcium magnesium carbonate with a chemical composition of CaMg(CO3)2. 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.
In the construction industry, dolomite is crushed and sized for use as a road base material, an aggregate in concrete and asphalt, railroad ballast, rip-rap, or fill. It is also calcined in the production of cement and cut into blocks of specific size known as "dimension stone."
Specification
Physical Properties of Dolomite | |
Chemical Classification | Carbonate |
Color | Colorless, white, pink, green, gray, brown, black |
Streak | White |
Luster | Vitreous, pearly |
Diaphaneity | Transparent to translucent |
Cleavage | Perfect, rhombohedral, three directions |
Mohs Hardness | 3.5 to 4 |
Specific Gravity | 2.8 to 2.9 |
Diagnostic Properties | Rhombohedral cleavage, powdered form effervesces weakly in dilute HCl, hardness |
Chemical Composition | CaMg(CO3)2 |
Crystal System | Hexagonal |
Uses | Construction aggregate, cement manufacture, dimension stone, calcined to produce lime, sometimes an oil and gas reservoir, a source of magnesia for the chemical industry, agricultural soil treatments, metallurgical flux |
Components
Components | Rate | Components | Rate |
Canxi Oxit (CaO) | 31.18% | Silic Oxit (SiO2) | 0.21% |
Magie Oxit (MgO) | 19.86% | Aluminum Oxit (Al2O3) | 0.059% |
Detailed Images