Breccia Portoro Marble supplied as slabs, tiles and bespoke cut-to-size pieces.
Marbre Import selects the available slabs, advises on vein layout and supports international natural-stone projects. Origin: Liguria, Italy.
Price on request
Breccia Portoro Marble
Breccia Portoro Marble: origin and appearance
Breccia Portoro is a dramatic black-and-gold marble quarried near Porto Venere in the province of La Spezia, Liguria, Italy.
It is also marketed as Nero Portoro, Giallo Portoro, Portoro Vena, Portoro Macchia, Portoro Gold and Porte-Or.
Depending on the block, the gold veining may be broad or fine, which explains the commercial qualifiers larga and fine.
The marble has an intense black ground crossed by rich gold veining. Occasional fine white veins may also appear, but they are generally discreet.
Areas of pure black create strong contrast and allow the gold movement to command the surface.
Characteristics and applications of Breccia Portoro Marble
Black marble is highly valued in interior design for its depth, graphic clarity and timeless elegance.
Breccia Portoro’s gold veins introduce light and warmth, placing it among the most recognisable statement marbles for luxury interiors.
Its density and strength support a wide range of interior architectural applications, subject to appropriate specification and maintenance.
Polished and honed finishes are most commonly specified. Polishing maximises the contrast between gold and black, while honing creates a more restrained, tactile surface.
Like Black Marquina Marble, Breccia Portoro is frequently used for floors and walls, as well as fireplaces, bars, bathrooms and bespoke stone furniture.
Breccia Portoro Marble technical overview
| Stone family | Natural marble |
| Origin / quarry area | Italy |
| Appearance | Deep black with expressive gold veining |
| Predominant colour | Black |
| Formats and finishes | Slabs, tiles and bespoke cut-to-size pieces. Available finishes include polished, honed, leathered/brushed and other project-specific options. |
| Recommended applications | Premium interior and architectural applications |
| Exterior use | Subject to the selected lot, finish, climate and intended application |
Indicative technical data
| Bulk density | ~ 2,650–2,750 kg/m³ |
| Water absorption | ~ 0.10–0.50% |
| Compressive strength | ~ 80–140 MPa |
| Flexural strength | ~ 8–18 MPa |
| Freeze-thaw / exterior use | Subject to the selected lot and finish |
Indicative reference ranges; confirm against the selected lot, finish and intended application.
Recommended applications
- Decorative panel, feature wall or book-matched composition
- Bathroom, bar, fireplace or bespoke stone furniture
- Lobby, hotel, restaurant and premium architectural projects
- High-end interiors with visual approval of the actual lot
Need to confirm an available lot? Marbre Import can provide a curated slab selection, advise on thickness, finish and vein layout, and prepare a project-specific quotation. For high-end projects, we can also coordinate the complete stonework package on the client’s behalf.
Specification guidance
Specifying Breccia Portoro Marble for a premium project
Breccia Portoro is a black-and-gold Italian marble for projects where the stone must convey drama, depth and lasting value: floors, bathrooms, walls, fireplaces, hotel lobbies, restaurants, boutiques and premium residences.
For architects and designers
Assessment of the veining, large-format appearance, layout coherence, installation constraints and expected maintenance level.
For stone contractors and project teams
Approval of the lot, thicknesses, finishes, fabrication, transport and technical feasibility before ordering.
For discerning private clients
Comparison with similar stones, colour selection, maintenance guidance and support through to a tailored quotation.
How should the actual stone lot be approved?
Approval should consider the available lot, colour, veining, format, finish, thickness and intended application. Marbre Import can support selection with slab photographs, samples and technical data.
Can this stone be used in kitchens and bathrooms?
Suitability depends on the stone, finish, treatment, expected maintenance and exposure to staining or acidic products. Technical guidance is recommended before ordering.
Why is pricing provided on request?
Pricing varies with the lot, origin, availability, thickness, finish, quantities, fabrication and transport. A tailored quotation reflects the actual project rather than a theoretical list price.
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