Onyx is a highly decorative material notable for its crystalline structure, dramatic color and translucency, which is especially noticeable in backlit applications. We carefully curate our selection of onyx, which we consider a boutique item, with a selection that evolves. We procure slabs for stock when we uncover a premium selection. Additionally, we source a variety of onyx slabs for special projects with certain minimums. Please read Material Considerations to understand the characteristics of onyx prior to making a selection.

All onyx will acid etch when exposed to acidic foods such as lemons
or tomatoes. Most onyx has a moderate absorption rating and will stain
when exposed to oil and highly-pigmented liquids. All onyx has a very low
abrasion resistance rating; it will scratch, stun and crack. All onyx has
naturally occurring cracks and fissures.
• Onyx must be handled with extreme care in both fabrication
and installation.
• Onyx is suitable for interior wall applications, not for floors. Onyx is
sometimes used on vanities and other non-food service countertops;
in these instances, the end user must be made aware of its acid
sensitivity and fragility.
• Always use a neutral detergent to clean onyx.
• Expect to see factory-repaired cracks and fissures. The quality of the
repair is dependent upon the factory of origin, the fabricator of the
stone and the installer.

• Always seal travertine prior to grouting or use.
• Use walk-off mats at entrances and expect the material to
patina rapidly.
• Always use a grout that is similar in color to the stone to avoid a
picture-frame effect.
• Always use a neutral detergent to clean travertine.
• To reduce the appearance of staining, always wipe up spills
immediately. Oil and highly-pigmented liquids can penetrate and
stain the stone and may need poultice to remove the stain.






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