Description
Azar Shahr Red Travertine is a high-quality and popular natural stone in Iran’s construction industry, extracted from the quarries in the Azarshahr region of East Azerbaijan Province.
Features of Azarshahr Red Travertine:
- Colour and Pattern: Deep red background with white and orange veins, offering a striking and attractive appearance for façades.
- Weather Resistance: Highly resistant to direct sunlight, rainfall, and temperature fluctuations – ideal for external cladding.
- Polishability and Finish: Excellent polishing capability, resulting in a glossy and reflective surface.
- Heat Resistance: Very high resistance to heat and capable of bearing heavy loads.
Applications:
- Building Façades: Due to its beautiful colour and pattern, it is a popular choice for exterior wall cladding.
- Flooring and Wall Coverings: Used in interior spaces such as halls, lobbies, and stairways.
- Stone Artifacts: Used in making items such as sculptures, fountains, and balustrades.

Red Travertine Quarries in Iran:
In addition to the Azarshahr quarry, other sources of red travertine in Iran include:
- Mahallat Red Travertine Quarry (Markazi Province): Produces high-quality red travertine suitable for both façades and interior spaces.
- Takab Red Travertine Quarry (West Azerbaijan Province): Offers a variety of red travertine tones and patterns, suitable for diverse architectural projects.
- Sirjan Red Travertine Quarry (Kerman Province): Known for its strong, durable red travertine used in the construction industry.


Technical Analysis Table – Azarshahr Red Travertine:
| Feature | Description and Values |
| Colour and Pattern | Red background with white and orange veining. |
| Specific Gravity | Approx. 2.5 g/cm³. |
| Abrasion Resistance | High; suitable for high-traffic areas. |
| Varied Textures | Uniform texture with fine to medium grain. |
| Polishability | Excellent; highly polishable surface. |
| Finished Surfaces | Polished, honed, bush-hammered, sandblasted, flamed. |
| Density | High; indicates strength and durability. |
| Compressive Strength | Around 100 to 150 MPa. |
| Water Absorption | Less than 0.5%; very low. |
| Porosity | Low; less than 1%. |
| Frost Resistance | Suitable for cold regions. |
| Acid Resistance | Resistant to mild acids like lemon juice and fermented dairy drinks. |
| Efflorescence Resistance | Very good, thanks to low porosity. |

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