Polishing Gold / sliver ornaments at home
Soap nuts - 4 to 5nos (Reetha)
Quicklime (Hydrated lime powder) - 100 grams (available in all hardware shops)
Burn the soap nuts till it turns into charcoal.
When it is cool, press slightly to remove the seeds and discard. Soak Gold or Silver ornaments with the burnt soap nuts in water for 10 minutes. Use a tooth brush to clean the ornaments and rinse it in plain water and dry using a clean cloth. To retain the colour of polished silver ornaments, just soak them in a box or vessel containing dry quicklime powder for 10 minutes. Then take it away & wipe it with clean cloth. Your ornaments will sparkle again.