Stone Collections by SABTA GRANITE
Portoro
Portoro marble exudes a sense of grandeur and sophistication with its deep black base and striking copper-gold veining that flows like liquid metal across the surface. Its polished finish enhances the natural depth and contrast, creating a luxurious visual rhythm that instantly elevates any space. Perfect for high-end interiors, it combines timeless elegance with bold modern character, making every installation feel both artistic and opulent.
Inventory Maintained
- 2CM Polished Slabs
Available on Request
- Custom Sizes and Finishes
Product Advantage
- Strong Production Control for Large Projects
The representative images of this product are provided to give an idea of the slab texture; however, they may not exactly match the available stock.
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The technical data provided are for reference purposes only and may not be 100% accurate.
Overview of Stone Properties
Grade
Premium
Origin
Italy
Petrographic Description
Metamorphic Stone Mainly Composed of Calcite/Dolomite
Color Variations
White, Beige, Grey, Black, Brown, Green, Multicolor
Density (ASTM C97 / EN 1936)
2,500 – 2,800 kg/m³
Water Absorption (ASTM C97 / EN 13755)
0.10% – 0.80%
Compressive Strength (ASTM C170 / EN 1926)
70 – 180 Mpa
Flexural Strength (ASTM C880 / EN 12372)
7 – 20 Mpa
Abrasion Resistance (ASTM C241 / EN 14157)
Medium to High
Hardness (Mohs Scale)
3 – 5
Porosity
Low to Medium
Frost Resistance (EN 12371)
Moderate to Good (Depending on Marble Type)
Chemical Resistance
Sensitive to Acids
Thermal Expansion (EN 14581)
Moderate
Fire Reaction Class (EN 13501-1)
Class A1 (Non-Combustible)
Slip Resistance (EN 14231)
Moderate (Depends on Finish)
Surface Finish Tolerance (ASTM C499 / EN 1469)
±1.0 mm
Recommended Applications
Flooring, Wall Cladding, Staircases, Vanity Tops, Feature Walls, Facades
Suitability (Outdoor)
Subject to Marble Type and Proper Treatment
Installation Method
Dry Fix / Wet Fix
Maintenance
Periodic Sealing Recommended
Grade
Premium
Origin
Italy
Petrographic Description
Metamorphic Stone Mainly Composed of Calcite/Dolomite
Color Variations
White, Beige, Grey, Black, Brown, Green, Multicolor
Density (ASTM C97 / EN 1936)
2,500 – 2,800 kg/m³
Water Absorption (ASTM C97 / EN 13755)
0.10% – 0.80%
Compressive Strength (ASTM C170 / EN 1926)
70 – 180 Mpa
Flexural Strength (ASTM C880 / EN 12372)
7 – 20 Mpa
Abrasion Resistance (ASTM C241 / EN 14157)
Medium to High
Hardness (Mohs Scale)
3 – 5
Porosity
Low to Medium
Frost Resistance (EN 12371)
Moderate to Good (Depending on Marble Type)
Chemical Resistance
Sensitive to Acids
Thermal Expansion (EN 14581)
Moderate
Fire Reaction Class (EN 13501-1)
Class A1 (Non-Combustible)
Slip Resistance (EN 14231)
Moderate (Depends on Finish)
Surface Finish Tolerance (ASTM C499 / EN 1469)
±1.0 mm
Recommended Applications
Flooring, Wall Cladding, Staircases, Vanity Tops, Feature Walls, Facades
Suitability (Outdoor)
Subject to Marble Type and Proper Treatment
Installation Method
Dry Fix / Wet Fix
Maintenance
Periodic Sealing Recommended
Grade
Premium
Origin
Italy
Petrographic Description
Metamorphic Stone Mainly Composed of Calcite/Dolomite
Color Variations
White, Beige, Grey, Black, Brown, Green, Multicolor
Density (ASTM C97 / EN 1936)
2,500 – 2,800 kg/m³
Water Absorption (ASTM C97 / EN 13755)
0.10% – 0.80%
Compressive Strength (ASTM C170 / EN 1926)
70 – 180 Mpa
Flexural Strength (ASTM C880 / EN 12372)
7 – 20 Mpa
Abrasion Resistance (ASTM C241 / EN 14157)
Medium to High
Hardness (Mohs Scale)
3 – 5
Porosity
Low to Medium
Frost Resistance (EN 12371)
Moderate to Good (Depending on Marble Type)
Chemical Resistance
Sensitive to Acids
Thermal Expansion (EN 14581)
Moderate
Fire Reaction Class (EN 13501-1)
Class A1 (Non-Combustible)
Slip Resistance (EN 14231)
Moderate (Depends on Finish)
Surface Finish Tolerance (ASTM C499 / EN 1469)
±1.0 mm
Recommended Applications
Flooring, Wall Cladding, Staircases, Vanity Tops, Feature Walls, Facades
Suitability (Outdoor)
Subject to Marble Type and Proper Treatment
Installation Method
Dry Fix / Wet Fix
Maintenance
Periodic Sealing Recommended
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Overview of Stone Properties
Grade
Premium
Origin
Italy
Petrographic Description
Metamorphic Stone Mainly Composed of Calcite/Dolomite
Color Variations
White, Beige, Grey, Black, Brown, Green, Multicolor
Density (ASTM C97 / EN 1936)
2,500 – 2,800 kg/m³
Water Absorption (ASTM C97 / EN 13755)
0.10% – 0.80%
Compressive Strength (ASTM C170 / EN 1926)
70 – 180 Mpa
Flexural Strength (ASTM C880 / EN 12372)
7 – 20 Mpa
Abrasion Resistance (ASTM C241 / EN 14157)
Medium to High
Hardness (Mohs Scale)
3 – 5
Porosity
Low to Medium
Frost Resistance (EN 12371)
Moderate to Good (Depending on Marble Type)
Chemical Resistance
Sensitive to Acids
Thermal Expansion (EN 14581)
Moderate
Fire Reaction Class (EN 13501-1)
Class A1 (Non-Combustible)
Slip Resistance (EN 14231)
Moderate (Depends on Finish)
Surface Finish Tolerance (ASTM C499 / EN 1469)
±1.0 mm
Recommended Applications
Flooring, Wall Cladding, Staircases, Vanity Tops, Feature Walls, Facades
Suitability (Outdoor)
Subject to Marble Type and Proper Treatment
Installation Method
Dry Fix / Wet Fix
Maintenance
Periodic Sealing Recommended
Grade
Premium
Origin
Italy
Petrographic Description
Metamorphic Stone Mainly Composed of Calcite/Dolomite
Color Variations
White, Beige, Grey, Black, Brown, Green, Multicolor
Density (ASTM C97 / EN 1936)
2,500 – 2,800 kg/m³
Water Absorption (ASTM C97 / EN 13755)
0.10% – 0.80%
Compressive Strength (ASTM C170 / EN 1926)
70 – 180 Mpa
Flexural Strength (ASTM C880 / EN 12372)
7 – 20 Mpa
Abrasion Resistance (ASTM C241 / EN 14157)
Medium to High
Hardness (Mohs Scale)
3 – 5
Porosity
Low to Medium
Frost Resistance (EN 12371)
Moderate to Good (Depending on Marble Type)
Chemical Resistance
Sensitive to Acids
Thermal Expansion (EN 14581)
Moderate
Fire Reaction Class (EN 13501-1)
Class A1 (Non-Combustible)
Slip Resistance (EN 14231)
Moderate (Depends on Finish)
Surface Finish Tolerance (ASTM C499 / EN 1469)
±1.0 mm
Recommended Applications
Flooring, Wall Cladding, Staircases, Vanity Tops, Feature Walls, Facades
Suitability (Outdoor)
Subject to Marble Type and Proper Treatment
Installation Method
Dry Fix / Wet Fix
Maintenance
Periodic Sealing Recommended
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