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Onyx

A translucent, generally layered, cryptocrystalline calcite.

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.

Maintenance:

  • 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 or professional stone cleaners 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.
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