how to polish green onyx

So, you’ve decided to bring out the natural luster of your green onyx and transform it into a radiant masterpiece. Fear not, for the journey of polishing green onyx is an art form that unveils the stone’s true brilliance.

Let’s embark on a step-by-step guide, demystifying the process and turning your onyx into a captivating centerpiece.

Materials You’ll Need

1. Sandpaper

  • Start with coarse-grit sandpaper (60-80 grit) and gradually move to finer grits (100-1200 grit).

2. Water

  • Keep clean, filtered water handy to wet the sandpaper and prevent dust buildup.

3. Polishing Compound

  • Opt for a polishing compound designed for natural stones, specifically onyx.

4. Felt or Polishing Pad

  • Use a felt or polishing pad to apply the polishing compound.

5. Buffing Wheel

  • For that professional shine, a buffing wheel with a polishing compound can work wonders.

Preparation Steps

1. Clean the Onyx

  • Start with a clean slate. Use a mild soap solution and water to remove any dirt, grime, or grease from the onyx surface.

2. Rinse and Dry

  • Give your onyx a refreshing rinse with clean water and pat it dry using a soft, lint-free cloth.

The Polishing Process

1. Start with Coarse Grit

  • Begin the journey with coarse-grit sandpaper (60-80 grit). Apply even pressure in a back-and-forth motion to eliminate deep scratches.

2. Progress Through Grit Sizes

  • Move through finer grits, from 100 to 1200, to refine the surface. Each step smoothens and polishes the onyx further.

3. Apply Polishing Compound

  • Once at 1200 grit, it’s time to introduce the polishing compound. Apply it to the felt or polishing pad.

4. Polish with Polishing Compound

  • Using a circular motion, apply the polishing compound to the onyx surface. Gently press to bring out the natural luster.

5. Rinse and Dry

  • Rinse the polished onyx with clean water to remove any residue. Pat it dry with a soft, lint-free cloth.

6. Buffing

  • For an extra-glossy finish, consider using a buffing wheel with a polishing compound. Maintain a consistent speed for a uniform shine.

Additional Tips for Your Polishing Odyssey

1. Protect the Onyx

  • Place a protective barrier, like a towel or plastic sheet, around the onyx to avoid accidental scratches or spills during polishing.

2. Wear Gloves

  • Guard your hands against the polishing compound and sandpaper grit by wearing gloves.

3. Maintain Proper Ventilation

  • Ensure your workspace has adequate ventilation, especially if the polishing compound emits fumes.

4. Seek Professional Help

  • If the project seems daunting or you’re unsure, consider consulting a professional stone restoration service for more complex polishing tasks.


The art of polishing green onyx is a journey of revelation and transformation. From the initial scratches to the unveiling of its natural brilliance, your green onyx can be a shimmering triumph with a bit of patience and the right materials.

So, embrace the process, revel in the satisfaction of each polished layer, and let your green onyx shine forth as a radiant testament to your polishing prowess.

May your onyx tabletop or ornament become a beacon of elegance, captivating all who behold its newfound gleam.

Also explore where to get green onyx beads, what is the red in green onyx stone, what is the green layer in onyx and what is green onyx briolette.

Jyotish Varsha Gupta
Varsha Gupta


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