Portasanta: complete guide

History and origin

The name is traditionally linked to the use of this stone in the Holy Door (Porta Santa) of St Peter's Basilica in Rome. In antiquity the marble of this name came from the Greek island of Chios, while today breccias of similar appearance and various origins are sold under the same name. This is why it is important to assess the batch available. Marmi di Carrara supplies it on request.

Look and veining

The background alternates pink, coral red and dark red tones, with fragments and patches in grey, white or yellowish tones and fine veins. Variability is high: some slabs are pinker and more uniform, others more brecciated and contrasting. Polishing enhances the colours, while matt finishes give a more antique look.

Technical properties (indicative)

Recommended uses

Suitable for cladding, decorative floors, inlays, fireplaces, bathroom tops and the restoration of historic buildings. Not recommended for exposed exteriors or kitchen worktops.

Care and maintenance

Clean with neutral detergents, without acidic or abrasive products. An impregnating sealer protects the surface from stains; for historic surfaces it is preferable to rely on specialist restorers.

Pairings

• white and grey marbles for patterned floors
• burnished brass and bronze
• antique woods such as walnut and chestnut

FAQ