If you try these methods and still do not have success contact a professional to assess the problem.
How to get water spots off marble floor.
This occurs when water containing large amounts of mineral deposits like calcium and magnesium commonly called hard water is allowed time to dry on your marble surface.
Water stains are a common issue with marble countertops but pure water will not stain or damage marble.
Since marble is softer than other natural stones such as granite it is more susceptible to staining from cooking and spills.
The water marks should be cleaned off of the marble with a safe cleaning ingredient that will remove the residue without causing damage.
Unfortunately rust stains are the most difficult of stains to remove from marble.
Marble tile is just as susceptible to staining as solid marble but you can use the same method to remove stains from marble tile as you would solid stone.
These surfaces commonly collect water that splashes onto the marble surface and when you allow the water to air dry you typically get left with cloudy dirty looking spots of residue.
Rust stains can usually be removed with a poultice or a non acidic rust remover.
Poultices are particularly effective for removing stains from stone surfaces because they draw the stain out of the stone as they dry.
Water spots are defined as water deposits built up on your marble surface.
In addition spots result from water splashing around the sink.