Considerations
Very soft (Mohs 3-4), fragile, prone to scratches, chips, and etching from acidic substances. Highly porous, requiring immediate spill cleanup and frequent professional sealing. High maintenance requirements.
Stone × Application
ONYX — countertops
Unique aesthetic, translucency allowing for backlighting, dramatic veining, exclusive and luxurious appearance.
Specifications
- Finish: Polished (to enhance translucency and aesthetic), Honed (for a matte look).
- Thickness: 0.75 inches (2 cm) is common, 1.25 inches (3 cm) is less common due to fragility. Backlit applications may use 0.4-0.6 inches (10-15mm) with honeycomb backing.
- Maintenance: High
- Installed: 100-300+
Top varieties
White OnyxGreen OnyxHoney Onyx