Definition of rottenstone in English:

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rottenstone

Pronunciation: /ˈrätnˌstōn/

noun

Weathered siliceous limestone used as a powder or paste for polishing metals.
Example sentences
  • For a glassy finish, use pumice or rottenstone (decomposed limestone).
  • For older stains use a paste of rottenstone, baking soda or cigarette ashes mixed with mineral oil, linseed oil, or lemon oil.
  • For the final touch, rub down the table using a thin paste of rottenstone.

For editors and proofreaders

Syllabification: rot·ten·stone

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