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Onyx / Alabaster

Tanzania Onyx

Banded calcite onyx / alabaster

This material is recorded as an onyx / alabaster in mixed, verify from supplier tones. The recorded appearance includes natural variation; verify slab photos and quarry selection. Recorded applications include feature walls, bars, hospitality interiors and decorative panels.

Stone familyOnyx / Alabaster
Primary colourMixed

High verification · Reference STN-0005607

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Professional reference

Specification snapshot

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

Mohs hardness3
Water absorption0.1-0.6 %
Compressive strength50-120 MPa
Flexural strength6-12 MPa
Density2400-2700 kg/m³
PorosityNot reported

Material profile

Character & application

Common finishes
Polished, honed, backlit
Typical uses
Feature walls, bars, hospitality interiors, decorative panels
Exterior suitability
Interior preferred
Frost resistance
Poor to variable
Recorded colour palette
Mixed, Verify From Supplier