rottenstone

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English - Turkish
ponza
süngertaş
English - English
A soft, friable limestone, used in polishes
{n} a soft stone used in polishing called also Tripoly, from that country
{i} brittle and weatherworn stone formed by decomposed siliceous limestone
a weathered and decomposed siliceous limestone; in powdered form it is used in polishing
rottenstone
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