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
Nero Marquina etches like any marble, but on black stone an etch looks white or grey, so even a single drop of lemon juice leaves an obvious mark. Scratches also show pale. Clear protection film stops acids reaching the stone and takes the everyday scuffs, keeping black marble uniformly dark.
Key points
- Etch marks show as white or grey patches on black marble.
- Fine scratches catch the light far more than on white marble.
- Staining is less visible, but etching and scratching are worse.
- Film keeps the surface an even, deep black.
Why black marble shows everything
On a white marble, an etch is a white-on-white dull patch you only see at an angle. On Nero Marquina, the same etch is a pale ring on a jet-black background, visible from across the room. Fine scratches behave the same way, because a scratched calcite surface scatters light and looks lighter than the polished stone around it.
That is why people who love Nero Marquina often use it in powder rooms, bars and feature pieces rather than busy kitchens, or accept that it will look worn within months. Film removes that trade-off.
Water spots and fingerprints
Dark polished surfaces also show dried water spots, hard-water minerals and fingerprints. These are not damage, but cleaning them with the wrong product is how many black marble tops end up etched. Once filmed, you can wipe with ordinary non-abrasive cleaners without risk to the stone.
For a black surface in a busy kitchen, the Matte/Satin film is worth considering because it diffuses light and hides fingerprints.