Does marble darken over time?
Category: Question and Answer
Updated: 2019/10/15
Views: 470 
Likes: 82
Views: 470 Likes: 82
Reference Answer
White marble tiles can remain for years without yellowing then over time may slowly turn yellow, and in severe causes, may turn completely brown. This oxidation process is accelerated when the tile is saturated as in the flood in the above example. ... The same process is occurring with the iron in the marble.
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