Nero Portoro – Marble Nº 02
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Nº 02 / 17 · Translation missing: en.Marble · Italy

Nero Portoro

Black with golden veins – one of Italy’s most precious marbles.

Rock type
Limestone (traded as marble)
Origin
Portovenere, Liguria · Italy
Surface
polished
Hardness (Mohs)
3–4
Made in this stone (2) ↓

Close-up

The same photo at three magnifications – this is how the pattern looks up close.

1×
2×
3×

Every veneer is one of a kind. The image shows the stone; your piece will look different.

The story

Nero Portoro is quarried on the Ligurian coast near Portovenere, where the quarries sit directly above the sea. Its name comes from gold: the yellow veins are iron-bearing deposits that look like liquid metal in the black. Since the Baroque it has adorned churches and palaces all the way to Versailles, and because the deposits are small, it remains one of the most expensive marbles in Italy to this day.

Polished to a high gloss, it reveals its full depth. We source it from Antolini in Verona.

Properties

Polished, deep, with veins that never repeat. In the stone trade almost every polishable stone is called marble – we tell you what it really is geologically.

Family
Translation missing: en.Marble
Hardness (Mohs)
3–4
Processing
sawn, ground, polished
Surface
polished

For comparison: fingernail 2.5 · glass 5.5 · quartz 7. Values apply to the rock family.

Care

Clean with the Stone Cleaner. If the surface looks dull, the Marble Liquid Polish brings back the shine. Wipe off acids such as lemon juice, vinegar or wine promptly.

Care instructions →

Made in this stone · 2

iPhone case in real Nero Portoro marble with gold veins, angled rear view with the camera cut-out

Marble Case · Nero Portoro

€280,00
AirTag case in Nero Portoro marble with gold veins, with carabiner, seen from the front

AirTag Case · Nero Portoro

€90,00

Frequently asked questions about Nero Portoro

Where does Nero Portoro come from?

Nero Portoro comes from Portovenere, Liguria · Italy. Rock type: Limestone (traded as marble).

Is the Nero Portoro at ROXXLYN real stone?

Yes. Nero Portoro is real natural stone, not a print and not a film. Because every piece is cut from the block, every grain is unique.

What does Nero Portoro feel like?

Nero Portoro is polished: smooth, with depth and shine, which brings out the pattern of the stone especially clearly.

How do I care for Nero Portoro?

Clean with the Stone Cleaner. If the surface looks dull, the Marble Liquid Polish brings back the shine. Wipe off acids such as lemon juice, vinegar or wine promptly. Care instructions

What happens if Nero Portoro breaks?

Every piece comes with a Stone Passport. If the stone breaks within 12 months of delivery, we make the same model in the same type of stone again at half price, once per passport, plus shipping. More about the Stone Passport