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Hard milky white / bluish tinge when polished

Stone Conversations : Archive 9 : Message 00669

From: VisualThinker7@zzzzzzz
Date: Wed, 14 Sep 2005 19:53:13 EDT
Subject: Hard milky white / bluish tinge when polished

Does anyone know if the appearance of a bluish tinge is the result of a
chemical change, caused by the localized heat of polishing?

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