Considerations
Fragile and soft, prone to scratches and chips. Porous, requiring sealing to prevent staining from soot or spills. High cost. Not suitable for direct firebox lining.
Stone × Application
ONYX — fireplace surround
Visually stunning, unique aesthetic with translucency and dramatic veining. Can be backlit for a luminous effect. Heat resistant. Creates a luxurious focal point.
Specifications
- Finish: Polished (to maximize visual impact), Honed (for a softer look).
- Thickness: 0.75-1.25 inches (2-3 cm) for surrounds; 0.4-0.6 inches (10-15mm) with honeycomb backing for backlit panels.
- Maintenance: Medium to High
- Installed: 100-300+
Top varieties
White OnyxGreen OnyxHoney Onyx