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
Quartzite is very hard, so most lines that look like scratches are metal marks left by cookware, and a non-scratch cream cleaner removes them. Genuine scratches in quartzite are rare and are polished out by a stone restorer with diamond pads. Fine marks can also be in the factory resin coating rather than the stone.
First, check what you are dealing with
- Grey line that feels smooth: metal mark. Clean it off.
- Line in a resin-filled area: scratch in the fill.
- Line you can feel in the stone: rare true scratch.
What you need
- Non-scratch cream cleaner
- Soft damp cloth
Step by step
Rule out metal marks
Rub the line with a non-scratch cream cleaner and a damp cloth. Grey lines from pots and cutlery often disappear completely.
Check again
Dry the area and look at it in raking light. Whatever remains is in the surface.
Get it polished
A stone restorer can re-polish quartzite and draw out stains, though its hardness makes polishing slower work.
What not to use on quartzite
- DIY polishing compounds made for cars or metal.
- Sandpaper.
When to call a professional
A stone restorer can re-polish quartzite and draw out stains, though its hardness makes polishing slower work.
Understanding scratches on quartzite
At around 7 on the Mohs scale, true quartzite is harder than glass and very hard to scratch.
Quartzite problems usually show as darker, stained patches in porous zones or dull spots where the factory resin treatment has worn.
A stone restorer can re-polish quartzite and draw out stains, though its hardness makes polishing slower work.
Good to know
Quartzite is harder than glass, so a real scratch in true quartzite is rare. If yours scratches easily, it may be dolomite.
Stop it happening again
Whether yours is Taj Mahal, White Macaubas and Cristallo, repairing it fixes today's mark; protecting it stops the next one. Our clear Stone Protection Film sits over the surface, so liquids cannot soak in, and its self-healing top layer shrugs off fine everyday marks. Choose Gloss for polished quartzite 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 quartzite · Honed vs polished stone · Scratches on every surface