Onice Rosso Vulcano- Rojo Vulkano Onyx

Calcareous onyx

A red onyx with a documented natural-stone character. The recorded appearance includes needs visual verification / commercial listing only. Recorded applications include blocks, slabs, flooring and wall cladding.

Stone familyOnyx

Primary colourRed

Public StoneContact listing / needs direct verification verification · Reference STN-0000536

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Specification snapshot

Indicative catalogue data. Verify the exact stone, finish, thickness and current test certificates before specification.

Mohs hardness3-4

Water absorption0.1-1.0 %

Compressive strength50-120 MPa

Flexural strength5-15 MPa

Density2500-2700 kg/m³

PorosityNot reported

Material profile

Character & application

Common finishes: Polished, honed, brushed, sandblasted, bush hammered where suitable
Typical uses: Blocks, slabs, flooring, wall cladding, stairs, facades/paving where technically suitable
Exterior suitability: Interior decorative mostly
Frost resistance: Poor to moderate
Recorded colour palette: Red