Description
G121G OR Natanz Black Granite is one of the finest quality granites in Iran, extracted from quarries in Natanz, Isfahan Province. Known for its unique technical and chemical properties, this stone is widely used in architectural and decorative projects.
Technical Analysis and Features of Natanz Black Granite:
| Feature | Description and Values |
| Colour and Pattern | Black base with white or grey veining. |
| Specific Gravity | Approx. 3.1 g/cm³. |
| Abrasion Resistance | Very high; suitable for high-traffic areas. |
| Varied Textures | Uniform texture with fine to medium grain. |
| Polishability | Excellent; highly polishable surface. |
| Finished Surfaces | Polished, honed, leathered, flamed. |
| Density | High; indicates strength and durability. |
| Compressive Strength | Approx. 150 to 200 MPa. |
| Water Absorption | Less than 0.5%; very low. |
| Porosity | Low; less than 1%. |
| Frost Resistance | Excellent; ideal for cold climates. |
| Acid Resistance | Resistant to mild acids like lemon juice and fermented dairy drinks. |
| Efflorescence Resistance | Very good; thanks to its low porosity. |
Applications:
Interior Spaces:
- Flooring
- Wall cladding
- Staircases
- Countertops
Exterior Spaces:
- Building façades
- Outdoor paving
- Landscaping
Stone Artifacts:
- Gravestones
- Countertops
- Washbasins
- Sinks
- Balustrades and columns
- Sculptures and statues
- Tables
Advantages:
- High durability and structural strength
- Excellent resistance to abrasion and scratching
- Elegant appearance with a deep, uniform colour
- Weather-resistant across a range of climates
Disadvantages:
- Relatively heavy
- More expensive than some other stones
- Some sensitivity to strong acids
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