The stone sample is lovely enough to make its care sheet feel like an interruption. Bring the sheet back. It describes the bathroom you will own after the showroom lighting is gone.
Staining and etching are different problems
The Natural Stone Institute's care guidance explains that acidic products can etch calcareous stone and that sealing improves stain resistance without making stone stainproof. Ask the supplier about the exact stone and finish. A product that removes scale elsewhere may damage this surface.
Compare a whole cleaning routine
Read the porcelain manufacturer's instructions too, including restrictions for decorative finishes. Consider grout, joints, water deposits, and how much visible change you enjoy in a material. Take samples home and review approved cleaning products before deciding. Neither a glamorous photograph nor the word natural tells you how patient you will be on cleaning day.
Before the next step
- Ask for the exact material and finish care sheet.
- Distinguish staining, etching, and ordinary deposits.
- Choose the maintenance routine before ordering the tile.
There is room for materials that age visibly. The decision works best when that ageing is something you accept, rather than a surprise you keep trying to scrub away.