Written by , Founder. Updated .
What is onyx?
Onyx is a banded, translucent calcite stone, used for backlit walls, bar tops and statement pieces. It is softer and more brittle than marble.
Where does PGS restore onyx?
Backlit accent walls, bar and counter tops, kitchen islands and bathroom vanities.
What damage does onyx get?
- Scratches that show clearly when backlit
- Etch marks from acid
- Hairline cracks
- Staining and discoloration in the translucent layers
How does PGS restore onyx?
Delicate spot polishing, crack repair and a protective seal.
Surface Restoration · Invisible Shield
Clear protective film can guard tops and vanities against new marks.
How should I clean onyx at home?
- Use a soft cloth, never an abrasive sponge.
- Keep acidic things away.
- Protect it from knocks by heavy objects.
Sources & further reading
The Natural Stone Institute’s consumer guide covers daily cleaning, stain removal and when sealing helps for natural stone. It is industry guidance; on every project we test the real stone first.
General information about this stone. On every project, PGS craftsmen survey and prove a small area of the real stone before proposing a method.