These spots are hard water minerals such as calcium and magnesium.
White spots on marble.
There also are light grayish stains around the drains.
I have some light hard water and rust stains on my cultured marble one piece bathroom vanity tops with sinks.
Water spots are very common on kitchen marble countertops when you leave your drinks on the marble or from hard water build up around your sinks or marble showers.
However in such cases the water is usually very hard and you d get noticeable build up dull whitish crusty.
You got this here s how to clean marble and make it stay that way.
Other than the stains the cultured marble is in very good condition and the original gel coat still is relatively shiny.
When my husband and i were researching our kitchen renovation a couple years ago marble countertops were the clear frontrunner but we were nervous about the inevitable etching.
Physical characteristics of marble.
Marble a white or uniquely variegated type of limestone that has been exposed to extreme heat and pressure has a long history of being favored by artisans and builders from michelangelo s.
These minerals are left behind when the water evaporates leaving a ring or a spot.
It will feel rough and also feel like the spot protrudes slightly below the surface.
To remove these spots use a marble polishing powder.
Deep spots may require honing.
Water rings spots water rings and spots are very common on marble table tops.
Mold stains we see these stains a lot in wet areas or on bathroom marble countertops or bathroom tile floors.
So they grow on top of the surface where an etch mark is a small indention in the surface.
Water spots are actually mineral deposits on the surface.
For water spots light scratches and nicks try.
It is imperative to remove stains water spots or other discoloration in your polished marble using the proper technique and products.
Rub your fingers over the marble spot if it feels raised off the surface then it is a hard water spot.
Because marble is a porous natural stone use only an approved cleaning process to avoid damaging the marble surface.
If water spots mar your marble countertop clean and polish the marble to restore its former perfection.
Marble is not only porous it is also softer especially when compared to granite.
Clear light colored or white spots rings or dull spots on marble are etch marks 95 of the time but a similar looking mark can occur with hard water.