Although flooding is a common cause there are several other reasons this color change will occur.
Whiten yellowed marble.
Marble flooring or countertops tend to turn yellow and fade with time if proper marble maintenance is not done.
References marble institute of america.
The problem of yellowed white marble is not uncommon.
If the gel coating has worn down a bit the coating and cultured marble may become stained.
All over the united states i have encountered marble that has turned yellow and even brown.
Areas underneath faucet fixtures or even.
As marble wears the highly polished surface begins to become scratched and worn.
Cultured marble may yellow over time for various reasons.
Some professionals also recommend applying a clear protective marble wax but refrain from doing so with white marble as this can cause yellowing.
Inadequate maintenance time robs the beauty of marble since the stone slowly wears out and becomes scratched.
The following reasons show why white marble flooring or worktops discolour gradually.
New installations should be sealed with a good quality penetrating sealer impregnator which will help prevent oxidation of the iron by eliminating moisture.