The sources used to prepare this standard are:
ASTM-C503
Marble is a crystalline stone whose main minerals are calcite, dolomite or a combination of them, and it can be polished. Therefore, decorative marble is classified as below
Limestone marble is formed from crystallized calcium carbonate.
Dolomite marble – which mainly contains crystallized calcium and magnesium double carbonate.
The marble used for the facade of the building must be healthy and free from cracks, holes or other defects that damage its strength, durability or appearance and have the characteristics specified in the table below this standard.
| Row | Stone type | Phisical attribute | Acceptable amount |
| 1 | Lime marble | Minimum density | 2595 kg/m |
| 2 | Dolomit marble | Minimum density | 2800 kg/m |
| 3 | Dolomit lime marble | Moximum water absorbtion | 0.2 % |
| Maximum compressive strength | 520 kg/cm | ||
| The minimum breaking factor | 70 kg/cm | ||
| Minimum wear resistance | 10* | ||
| Minimum compressive strength | 70 kg/cm |
