

History and origin
It takes its name from Iragna, a village in the Riviera district of Ticino, an area where gneisses well known in Switzerland and Northern Italy are quarried. These stones have been used for centuries for paving, steps, walls and roofing in Alpine buildings. Today they are also used in contemporary architecture. Marmi di Carrara supplies it on request.
Look and veining
The background is grey, with light quartz and feldspar crystals and dark mica arranged in thin bands. The pattern is more veined or more speckled depending on the cutting direction and varies slightly between slabs. Honed, it looks an even, understated grey; flamed or natural split, it has a rustic effect.
Technical properties (indicative)
| Classification | metamorphic rock (gneiss) |
|---|---|
| Density | approx. 2,650 kg/m³ (indicative) |
| Mohs hardness | approx. 6-7 |
| Water absorption | low |
| Main use | outdoor and indoor |
| Acid resistance | good |
Recommended uses
Suitable for outdoor paving, stairs, walls, cladding, kitchen worktops and interior floors. It withstands frost well, so it is suitable for mountain areas. Split finishes are ideal for gardens and paths, less so for interiors, where a honed surface is preferred.
Care and maintenance
Clean with water and a neutral detergent. Outdoors, periodically remove moss and leaves to prevent stains. A water repellent is useful on more porous or split surfaces.
Pairings
- chestnut wood
- exposed concrete
- black iron and glass
FAQ
What is the difference between gneiss and granite?
Granite has a uniform grain, while gneiss has a banded structure resulting from metamorphic transformation; their strength is similar.
Is it suitable for a garden?
Yes, with a flamed or split finish it is non-slip and very durable.
Can I use it for a kitchen worktop?
Yes, it is hard and resistant to food acids; we recommend a stain-proofing protector.
How do I order it?
It is available on request: tell us the formats, thicknesses and finish and we will send you a quotation and photos of the material.
Gneiss Di Iragna: available on request
We supply this stone as blocks, slabs, tiles and custom-made pieces. Tell us size, thickness and quantity: we will send photos of the available slabs and a quote within 24 hours.
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