Before you try anything: always speak to a professional before cleaning, treating or applying any product to your stone. Every slab is different, and the wrong product can cause permanent damage. Contact us or a qualified stone restorer first.
Quick answer
Limescale on dolomite has to be removed without acid, because descalers that dissolve it will also etch the stone. Soften the deposit with warm water and pH-neutral cleaner, then shave it off carefully with a new plastic razor blade held flat. Heavy build-up is a job for a stone restorer.
First, check what you are dealing with
- Chalky white crust you can feel: limescale. Follow the steps below.
- Smooth dull patch with no crust: etching, often from past descaler use.
What you need
- pH-neutral stone cleaner
- Warm water
- New plastic razor blades
- Microfibre cloths
Step by step
Soften the deposit
Lay a cloth soaked in warm water and pH-neutral cleaner over the scale for 10 minutes.
Shave it off
Hold a new plastic razor blade almost flat and gently push under the scale. Keep the dolomite wet as you go.
Repeat and dry
Re-wet and repeat until the crust is gone, then rinse and dry thoroughly.
Check for etching
If the area underneath looks dull, it has probably been etched by past descaler use. See fixing etching.
What not to use on dolomite
- Vinegar, lemon juice or "natural" citrus cleaners: they etch dolomite.
- Scourers, steel wool and abrasive creams on a polished surface.
- Mixing cleaning chemicals, especially bleach with anything else.
- Bathroom descalers, CLR, vinegar and lime removers.
- Metal razor blades and steel wool.
When to call a professional
If scale is thick or has been there for years, a restorer can remove it with stone-safe products and re-polish any etching underneath. A restorer can re-polish dolomite, though it takes more work than marble because the stone is harder.
Understanding hard water and limescale on dolomite
Dolomite is calcium magnesium carbonate. It reacts with acid more slowly than marble, but lemon, vinegar and acidic cleaners still etch it over minutes.
Etches on dolomite tend to start as a faint haze and build into patchy areas around sinks and serving zones.
A restorer can re-polish dolomite, though it takes more work than marble because the stone is harder.
Good to know
Dolomite tolerates acid slightly better than marble, but not enough to make descalers safe. Use the same mechanical method.
Stop it happening again
Whether yours is Super White and many stones sold as "soft quartzite", repairing it fixes today's mark; protecting it stops the next one. Our clear Stone Protection Film sits over the surface, so acids cannot etch it and liquids cannot soak in. Choose Gloss for polished dolomite or Matte/Satin for honed and matte finishes. The protection is identical. It is installed across Sydney with a 10-year written warranty.
How we protect dolomite · Cleaning natural stone · Hard water & limescale on every surface