Black Marble
Nero Portoro
黑金花
The finest black marble of Liguria, Italy — known as "black gold". A deep ink-black ground…
Variety Details · Black Marble
Nero Portoro — Samples, Technical Data & Applications
The finest black marble of Liguria, Italy — known as "black gold". A deep ink-black ground carries striking golden yellow and white veining with extreme contrast and instant recognition. It is the definitive black stone for luxury hotels, clubs and premium bathrooms.
Technical Data 技術參數
Density
密度
2.70 – 2.73 g/cm³
Water Absorption
吸水率
0.12 – 0.22 %
Compressive Strength
抗壓強度
120 – 155 MPa
Flexural Strength
抗彎強度
11 – 18 MPa
Mohs Hardness
莫氏硬度
3.5 – 4.0
Radioactivity Class
放射性等級
A 類 Class A
Abrasion Resistance
耐磨性
≤ 22 mm
Bulk Density
體積密度
2,700 – 2,730 kg/m³
* Values above are typical ranges; individual batches may vary slightly. Contact us for batch-specific test reports.
Applications 應用場景
Hotel Reception Desks
Golden veining for a striking first impression
Book-matched Feature Walls
Symmetrical gold veining with dramatic impact
Luxury Bathrooms
Black-white-gold contrast, highly luxurious
Bar Countertops
Dark mood with golden accents
Lift Lobby Frames
Dark premium framing with crisp lines
Flagship Stores
Luxurious image with strong recognition
Available Surface Finishes
Different finishes give the stone a different texture and performance
📐 Standard Sizes
3200×1600mm / 3050×1440mm
600×600mm / 800×800mm
Custom sizes available
600×600mm / 800×800mm
Custom sizes available
📦 Standard Thickness
18mm / 20mm / 30mm
18mm typical for walls, 20mm for tops
Custom thickness available
18mm typical for walls, 20mm for tops
Custom thickness available
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