Nero Portoro marble
Marble · Italy
A dense web of gold and white veins covers the deep black: that is Nero Portoro marble. The contrast is high and defines the stone: it works best in bathrooms and on walls, where you see the whole slab.
It is also known as Negro Portoro.
- TypeMarble
- ColorBlack marble with gold
- OriginItaly
- ShippingOn request, to any country · how it reaches yours
What Nero Portoro Marble Looks Like
A dense, irregular web of gold and white veins spreads over the deep black background, in fine to medium strokes. The slab in the photo is polished, and the shine shows that web clearly, in high contrast against the black. Within the slab the pattern changes in moderation; each slab carries its own web, so you choose from photos of the available slabs.
- BackgroundDeep black
- PatternVeined
- ContrastHigh
- Variation in the slabModerate
Where to Use Nero Portoro Marble
- BathroomsShower, vanity and walls; honed is better on the floor.
- WallsWalls where the black sets the background and the gold draws the lines.
- Interior floorsIndoors: where people pass daily, honed is better.
- TablesEveryday tables; wipe up wine or coffee right away
- KitchenA kitchen is possible if you accept the patina
- OutdoorsOutdoors, rain and sun wear away the polish
- ScratchesLow
- StainsMedium, with sealer
- AcidsLow
After each use, a pass with a dry cloth: on a black marble, dust and dried drops stay in view.
Nero Portoro Marble Finishes
On a background this dark, the finish changes how the surface reflects light and how strong the gold veins look.
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Polished
The finish in the photo: it deepens the black and lifts the shine of the gold veins.
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Honed
It tones down the polish shine and leaves a soft touch; the finish a shower and a floor ask for.
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Brushed
Fine brush strokes that lower the reflection; a calmer black for indoor floors.
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Antiqued
It looks lived-in from the start; marks from use join the pattern.
Technical specifications
| Type | Marble |
|---|---|
| Color | Black |
| Origin | Italy |
| Hardness | 3 on the Mohs scale |
| Pattern | Veined |
| Common finishes | Polished, honed, brushed, antiqued |
| Works best in | Bathrooms, walls, indoor floors |
| Thickness and format | Depending on the slabs available; we confirm it in the quote |
Other Portoro Selections
This Nero Portoro spreads its gold and white web over the deep black; in Portoro marble, that same kind of web wraps black fragments.
How Much Does Nero Portoro Marble Cost?
There is no single price per m². These factors move it, and the quote already includes shipping to your country.
- Variety
- Thickness
- Finish
- Square meters and cuts
- Shipping
For a quote, send us
- The measurements or a photo of the plans
- The thickness, if you have already decided on it
- The finish you like
- The city where you receive it
Nero Portoro Marble at Home
How it looks in different spaces. Visualizations created from the real slab.
Questions About Nero Portoro Marble
Are Negro Portoro and Nero Portoro the same stone?
Yes, they are two forms of the same trade name: nero and negro mean the same thing. The stone is one; you can order it by either name.
How do I tell Nero Portoro apart from Sahara Noir?
They do not look alike. Sahara Noir carries very fine, straight and sparse gold lines over a brownish black; Nero Portoro spreads a dense, irregular network of gold and white veins over the deep black.
Does it work for a kitchen countertop?
It works if you accept a patina over the years: lemon, wine or tomato etch the polish with a dull patch that cleaning will not remove. If you want a surface that never shows a mark, this marble is not the choice.
What cleaning and sealing does Nero Portoro need?
Clean it with water and neutral soap; acidic cleaners etch the polish, so they stay out. A drop of water on the stone decides the sealer: if the slab absorbs it, apply it before the surface goes into service.
How does Nero Portoro marble reach my country?
We ship to any country, with the stone's documents of origin and its CE certification. On the shipping page we explain how it reaches each region.