Description
Marbles
Finishes – Polished and Leather
Marble is primarily composed of the mineral calcite (CaCO3) and contains other minerals, such as clay minerals, micas, quartz, pyrite, iron oxides, and graphite. Under the conditions of metamorphism, the calcite in the limestone recrystallizes to form a rock that is a mass of interlocking calcite crystals. Marble is often the host rock for corundum, spinel, and other gem minerals. This is why marble is often used as decorative stone in designing plush and rich interiors.
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Marble sculpture. Very pure calcite marble is used for most statues.
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As a construction material in construction of columns, beams, lintels and cantilevers. Large blocks of coloured marble are used for columns, floors, and other parts of building.
- Flooring in form of tiles. Marble sliced in various sized tiles is widely used in bathroom, kitchen and flooring of homes.
- Marble Furniture in form of table tops, benches, etc.
- Exterior and Interior cladding.
- Landscaping with marble PEBBLES. Rounded or tumbled marble is also used in paving roads and in decorating luxurious garden spaces.
Physical Properties of Marble:
|
Hardness |
3 to 4 on Moh’s Scale |
|
Density |
2.55 to 2.7 Kg/cm3 |
|
Compressive Strength |
70 to 140 N/mm2 |
|
Modulus of Rupture |
12 to 18 N/mm2 |
|
Water Absorption |
Less than 0.5%(except Rainforest Green/Brown with 2-3%) |
|
Porosity |
Quite low |
|
Weather Impact |
Resistant |
Chemical Properties of Marble:
|
Lime (CaO) |
28-32% |
|
Silica (SiO2) |
3-30% (varies with variety) |
|
MgO |
20 to 25% |
|
FeO + Fe2O3 |
1-3% |
|
Loss On Ignition (LOI) |
20-45% |
John –
excellent colors